Which airline has the best punctuality record on Washington, D.C. to Lisbon flights?

According to our data, TAP AIR PORTUGAL have had the least number of delays on this route over the last 12 months; with about 26% of their flights experiencing any sort of delay.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

Which layover airport has the shortest connection time from Washington, D.C. Dulles Intl Airport to Lisbon?

Paris (CDG) has the shortest average layover time for this route: 1h 10m.

Which airport is the most popular layover for flights between Washington, D.C. Dulles Intl Airport and Lisbon?

Dublin (DUB) was the most common stop: 28% of momondo users choosing 1-stop flights on this route connected there.

What is the most punctual flight time for Washington, D.C. to Lisbon flights?

Generally, flights departing in the evening tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

How often are flights from Washington, D.C. to Lisbon delayed?

Historically, on average around 28% of flights between Washington, D.C. and Lisbon have experienced a delay on any given week. The average delay length over the past 12 months has been 140 minutes.

What airlines fly to Lisbon?

TAP AIR PORTUGAL, United Airlines and Royal Air Maroc are the top three most popular airlines that fly to Lisbon from Washington, D.C. Dulles Intl Airport according to our data. TAP AIR PORTUGAL is the first choice among our users, with 77% of people opting to fly with this airline when traveling to Lisbon. Keep in mind that there are 12 different airlines that fly to Lisbon on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest travel time from Washington, D.C. Dulles Intl Airport to Lisbon?

Flights connecting via Paris (CDG) have the shortest average one-way travel time: 11h 45m.

How many flights depart from Washington, D.C. Dulles Intl Airport to Lisbon on average per day?

5 flights are operational daily from Washington, D.C. Dulles Intl Airport to Lisbon as of December 2025. The most popular departure time for this route is 10:00PM, with 77% of flights per day taking off in the evening.

How many flights depart from Washington, D.C. Dulles Intl Airport to Lisbon on average per week?

As of December 2025, 35 flights take off from Washington, D.C. Dulles Intl Airport and land in Lisbon each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

Which layover airport offers the lowest fares from Washington, D.C. Dulles Intl Airport to Lisbon?

Flights via New York (JFK) offer the lowest average round-trip price of $454.

When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Lisbon Humberto Delgado Airport?

Prices for flights from Washington, D.C. Dulles Intl Airport to Lisbon Humberto Delgado Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Lisbon Humberto Delgado Airport?

As of December 2025, there are 12 operators available to choose from for flights from Washington, D.C. Dulles Intl Airport to Lisbon Humberto Delgado Airport.

What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?

The travel and health documents you'll need for your trip to Lisbon Humberto Delgado Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lisbon Humberto Delgado Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$234 Cheap Flights from Washington, D.C. Dulles Intl Airport to Lisbon in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Lisbon

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:45 pm - 11:35 am

IAD

LIS

9h 50m1 stop

5:55 pm - 6:45 pm

LIS

IAD

29h 50m1 stop

$571Royal Air Maroc

Fri, Jan 23 - Tue, Jan 27

6:05 pm - 9:15 pm

IAD

LIS

22h 10m2 stops

10:00 pm - 4:35 pm

LIS

IAD

23h 35m2 stops

$573Multiple Airlines

Sun, Jan 18 - Mon, Jan 26

12:24 pm - 3:50 pm

IAD

LIS

22h 26m2 stops

4:55 pm - 5:15 pm

LIS

IAD

29h 20m1 stop

$574Scandinavian Airlines

Thu, Feb 26 - Wed, Mar 4

8:30 pm - 4:05 pm

IAD

LIS

14h 35m1 stop

6:00 pm - 5:15 pm

LIS

IAD

28h 15m1 stop

$575Scandinavian Airlines

Sat, Feb 14 - Sun, Feb 22

8:45 pm - 11:35 am

IAD

LIS

9h 50m1 stop

11:35 am - 6:45 pm

LIS

IAD

12h 10m1 stop

$576Royal Air Maroc

Sun, Feb 15 - Wed, Feb 25

8:30 pm - 4:05 pm

IAD

LIS

14h 35m1 stop

6:00 pm - 5:15 pm

LIS

IAD

28h 15m1 stop

$577Scandinavian Airlines

Sat, Feb 14 - Sun, Feb 22

8:20 pm - 3:35 pm

IAD

LIS

14h 15m1 stop

4:25 pm - 4:50 pm

LIS

IAD

29h 25m1 stop

$578Scandinavian Airlines

Sun, Apr 5 - Sat, Apr 25

8:30 pm - 4:05 pm

IAD

LIS

14h 35m1 stop

7:05 am - 7:09 pm

LIS

IAD

17h 04m2 stops

$579Scandinavian Airlines

Sat, Jan 17 - Wed, Jan 21

8:30 pm - 8:55 am

IAD

LIS

31h 25m1 stop

4:40 pm - 6:50 pm

LIS

IAD

31h 10m1 stop

$580Scandinavian Airlines

Wed, Feb 18 - Fri, Feb 27

8:30 pm - 4:05 pm

IAD

LIS

14h 35m1 stop

4:55 pm - 7:09 pm

LIS

IAD

31h 14m2 stops

$581Scandinavian Airlines

Sat, Feb 7 - Mon, Feb 9

Scandinavian Airlines flights from Washington, D.C. Dulles Intl Airport to Lisbon

Our best Scandinavian Airlines deals on Washington, D.C. Dulles Intl Airport to Lisbon flight tickets

Scandinavian Airlines

Feb 26

IAD12:24 pmWashington, D.C. Dulles Intl

22h 26m

2 stops

LIS3:50 pmLisbon Humberto Delgado

Mar 4

LIS4:55 pmLisbon Humberto Delgado

29h 20m

1 stop

IAD5:15 pmWashington, D.C. Dulles Intl

$574

Find similar

Scandinavian Airlines

Feb 14

IAD8:30 pmWashington, D.C. Dulles Intl

14h 35m

1 stop

LIS4:05 pmLisbon Humberto Delgado

Feb 22

LIS6:00 pmLisbon Humberto Delgado

28h 15m

1 stop

IAD5:15 pmWashington, D.C. Dulles Intl

$575

Find similar

Scandinavian Airlines

Feb 14

IAD8:30 pmWashington, D.C. Dulles Intl

14h 35m

1 stop

LIS4:05 pmLisbon Humberto Delgado

Feb 22

LIS6:00 pmLisbon Humberto Delgado

28h 15m

1 stop

IAD5:15 pmWashington, D.C. Dulles Intl

$577

Find similar

Turkish Airlines flights from Washington, D.C. Dulles Intl Airport to Lisbon

Our best Turkish Airlines deals on Washington, D.C. Dulles Intl Airport to Lisbon flight tickets

Turkish Airlines

Feb 12

IAD1:30 pmWashington, D.C. Dulles Intl

16h 10m

1 stop

LIS10:40 amLisbon Humberto Delgado

Feb 17

LIS6:00 amLisbon Humberto Delgado

18h 20m

1 stop

IAD7:20 pmWashington, D.C. Dulles Intl

$587

Find similar

Turkish Airlines

Mar 6

IAD9:15 pmWashington, D.C. Dulles Intl

36h 50m

1 stop

LIS3:05 pmLisbon Humberto Delgado

Mar 26

LIS11:30 amLisbon Humberto Delgado

29h 15m

1 stop

IAD12:45 pmWashington, D.C. Dulles Intl

$596

Find similar

Turkish Airlines

Jan 14

IAD9:15 pmWashington, D.C. Dulles Intl

20h 45m

1 stop

LIS11:00 pmLisbon Humberto Delgado

Jan 22

LIS6:00 amLisbon Humberto Delgado

34h 45m

1 stop

IAD11:45 amWashington, D.C. Dulles Intl

$602

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Lisbon that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Fri 1/23

8:45 pm-11:35 am

1 stop9h 50m

Lisbon Humberto Delgado

Tue 1/27

5:55 pm-6:45 pm

1 stop29h 50m

$571

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Sun 1/18

6:05 pm-9:15 pm

2 stops22h 10m

Lisbon Humberto Delgado

Mon 1/26

10:00 pm-4:35 pm

2 stops23h 35m

$573

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Thu 2/26

12:24 pm-3:50 pm

2 stops22h 26m

Lisbon Humberto Delgado

Wed 3/4

4:55 pm-5:15 pm

1 stop29h 20m

$574

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Sat 2/14

8:30 pm-4:05 pm

1 stop14h 35m

Lisbon Humberto Delgado

Sun 2/22

6:00 pm-5:15 pm

1 stop28h 15m

$575

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Sun 2/15

8:45 pm-11:35 am

1 stop9h 50m

Lisbon Humberto Delgado

Wed 2/25

11:35 am-6:45 pm

1 stop12h 10m

$576

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Sat 2/14

8:30 pm-4:05 pm

1 stop14h 35m

Lisbon Humberto Delgado

Sun 2/22

6:00 pm-5:15 pm

1 stop28h 15m

$577

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Sun 4/5

8:20 pm-3:35 pm

1 stop14h 15m

Lisbon Humberto Delgado

Sat 4/25

4:25 pm-4:50 pm

1 stop29h 25m

$578

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Sat 1/17

8:30 pm-4:05 pm

1 stop14h 35m

Lisbon Humberto Delgado

Wed 1/21

7:05 am-7:09 pm

2 stops17h 04m

$579

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Wed 2/18

8:30 pm-8:55 am

1 stop31h 25m

Lisbon Humberto Delgado

Fri 2/27

4:40 pm-6:50 pm

1 stop31h 10m

$580

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Sat 2/7

8:30 pm-4:05 pm

1 stop14h 35m

Lisbon Humberto Delgado

Mon 2/9

4:55 pm-7:09 pm

2 stops31h 14m

$581

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Lisbon

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

Layovers

Other information

What is the cheapest month to fly to Lisbon?

In general, February is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Lisbon. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $700. If you are unable to visit Lisbon during the month of February, then departing from Washington, D.C. Dulles Intl Airport during the month January is also very affordable. Most momondo users find prices during this month for around $719.

What is the cheapest day to depart on your flight to Lisbon?

Our data shows that Monday is the least expensive day to fly to Lisbon. Tickets to fly out on this day can be as low as $708. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. Dulles Intl Airport to Lisbon for around $875.

What is the cheapest time of day to depart on your flight to Lisbon?

The cheapest time of day to fly to Lisbon is in the afternoon when flights can be purchased for as low as $756. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $833 on average. Flights to Lisbon from Washington, D.C. Dulles Intl Airport in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Washington, D.C. Dulles Intl to Lisbon Humberto Delgado flight route?

Fly from Washington, D.C. Dulles Intl to Lisbon Humberto Delgado for the best Washington, D.C. Dulles Intl - Lisbon Humberto Delgado flight prices

How far in advance should I book a flight to Lisbon?

You are more likely to see cheaper flights to Lisbon from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Lisbon for around $906 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Lisbon from Washington, D.C. Dulles Intl Airport for as low as $747 on momondo.

What cabin class options are available on Washington, D.C. Dulles Intl to Lisbon Humberto Delgado flights?

There are 3 cabin classes available to choose from on Washington, D.C. Dulles Intl to Lisbon Humberto Delgado flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Washington, D.C. Dulles Intl Airport to Lisbon flights?

You could potentially save up to 10% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Lisbon flight.

How have Washington, D.C. Dulles Intl Airport to Lisbon flight prices changed over time?

As of December 2025, prices for Washington, D.C. Dulles Intl Airport to Lisbon flights are approximately 48% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. Dulles Intl Airport to Lisbon

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Lisbon according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Lisbon (IAD to LIS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Lisbon

Best Price Found	$366
Fastest flight time	7h 05m
Direct flights	Every day
Airports in Lisbon	1 airport

The best one-way flight to Lisbon from Washington, D.C. Dulles Intl Airport in the past 72 hours is $366. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Lisbon found on momondo in the last 72 hours is $544.

The fastest flight from Washington, D.C. Dulles Intl Airport to Lisbon takes 7h 05m

Direct flights go from Washington, D.C. Dulles Intl Airport to Lisbon every day.

There is 1 airport in Lisbon. From Washington, D.C. Dulles Intl Airport there are direct flights to Lisbon Humberto Delgado (LIS).

Search flight deals

How far is Washington, D.C. Dulles Intl to Lisbon Humberto Delgado by plane?
The straight-line distance from Washington, D.C. Dulles Intl to Lisbon Humberto Delgado is 3581.5 mi. Typically, this will take 7h 05m by plane in normal conditions.
When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Lisbon Humberto Delgado Airport?
Prices for flights from Washington, D.C. Dulles Intl Airport to Lisbon Humberto Delgado Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Lisbon Humberto Delgado Airport?
As of December 2025, there are 12 operators available to choose from for flights from Washington, D.C. Dulles Intl Airport to Lisbon Humberto Delgado Airport.
How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Lisbon Humberto Delgado Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Lisbon Humberto Delgado Airport.
What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?
The travel and health documents you'll need for your trip to Lisbon Humberto Delgado Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lisbon Humberto Delgado Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Washington, D.C. Dulles Intl Airport to Lisbon?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Washington, D.C. Dulles Intl Airport to Lisbon is Boeing 767-400 (27.76% of total bookings). The next most popular plane models are Airbus A321neo (19.05%), Boeing 777 (14.24%), and Boeing 767-300 (9.17%).
What is the most popular airline from Washington, D.C. Dulles Intl Airport to Lisbon?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Washington, D.C. Dulles Intl Airport to Lisbon is TAP AIR PORTUGAL (72% of total bookings). The next most popular airlines are United Airlines (17%), Royal Air Maroc (3%), and Turkish Airlines (2%).

Best airlines flying from Washington, D.C. Dulles Intl Airport to Lisbon

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Lisbon with momondo

Airline	Rating	Free Cancellation	Price
Scandinavian Airlines	PriceFrom $504	Free Cancellation	Rating 7.4 1,630 reviews	Search Scandinavian Airlines flights
American Airlines	PriceFrom $508	Free Cancellation	Rating 7.2 11,070 reviews	Search American Airlines flights
TAP AIR PORTUGAL	PriceFrom $509	Free Cancellation	Rating 7.2 2,098 reviews	Search TAP AIR PORTUGAL flights
British Airways	PriceFrom $510	Free Cancellation	Rating 6.7 7,616 reviews	Search British Airways flights
Royal Air Maroc	PriceFrom $551	Free Cancellation	Rating 6.2 544 reviews	Search Royal Air Maroc flights
Delta	PriceFrom $563	Free Cancellation	Rating 7.9 8,017 reviews	Search Delta flights
Turkish Airlines	PriceFrom $585	Free Cancellation	Rating 7.3 4,125 reviews	Search Turkish Airlines flights
Iberia	PriceFrom $592	Free Cancellation	Rating 7.0 3,059 reviews	Search Iberia flights
Aer Lingus	PriceFrom $666	Free Cancellation	Rating 7.2 1,412 reviews	Search Aer Lingus flights
JetBlue	PriceFrom $707	Free Cancellation	Rating 7.2 2,901 reviews	Search JetBlue flights

United Airlines Flights From Washington, D.C. Dulles Intl Airport to Lisbon
The lowest priced United Airlines flight from Washington, D.C. Dulles Intl Airport to Lisbon from the last 72 hours was $745. Generally, United Airlines has 7 flights on this route every week with an average price of $1,157. United Airlines is rated 7.4/10 by our users.
TAP AIR PORTUGAL Flights From Washington, D.C. Dulles Intl Airport to Lisbon
The best TAP AIR PORTUGAL deal for Washington, D.C. Dulles Intl Airport to Lisbon flight tickets found on momondo in the last 72 hours was $509, round-trip. It should be noted that an average TAP AIR PORTUGAL flight deal for this route in this time was higher, at $886 round-trip. TAP AIR PORTUGAL operates 7 flights out of Washington, D.C. Dulles Intl Airport into Lisbon in an average week, so prices vary by time and availability. 2,098 TAP AIR PORTUGAL reviews by users on momondo have scored the airline at 7.2/10.

Sintra

Ericeira

Fátima

Nazaré

Setúbal

Peniche

Estoril

Leiria

Oeiras

Sesimbra

Tomar

Evora

Figueira da Foz

Zambujeira do Mar

Batalha

Comporta

Torres Vedras

Óbidos

Sines

Almada

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Lisbon?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Lisbon for you.

Can I find flights from Washington, D.C. to Lisbon with flexible booking policies on momondo?

Yes. All flights to Lisbon from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Washington, D.C. to Lisbon?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to Lisbon.

I’m not ready to book a flight from Washington, D.C. to Lisbon right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Washington, D.C. to Lisbon now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Lisbon and let you know when they change.

An easier way to manage your Lisbon trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Tue 1/27

Tue 2/3

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal

Airports servicing Portugal

Fly to other destinations from Washington, D.C. Dulles Intl Airport

Flights from Washington, D.C. Dulles Intl to Tweed-New Haven

Flights from Washington, D.C. Dulles Intl to Miami

Flights from Washington, D.C. Dulles Intl to Tampa

Flights from Washington, D.C. Dulles Intl to Orlando

Flights from Washington, D.C. Dulles Intl to Wilmington New Hanover County

Flights from Washington, D.C. Dulles Intl to Asheville Regional

Cheap flights from Washington, D.C. Dulles Intl Airport to Lisbon from $234

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Lisbon

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Scandinavian Airlines flights from Washington, D.C. Dulles Intl Airport to Lisbon

Our best Scandinavian Airlines deals on Washington, D.C. Dulles Intl Airport to Lisbon flight tickets

Turkish Airlines flights from Washington, D.C. Dulles Intl Airport to Lisbon

Our best Turkish Airlines deals on Washington, D.C. Dulles Intl Airport to Lisbon flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Lisbon that are best for you.

See travel insights to Lisbon from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Lisbon

What is the cheapest month to fly to Lisbon?

What is the cheapest day to depart on your flight to Lisbon?

What is the cheapest time of day to depart on your flight to Lisbon?

What is the cheapest Washington, D.C. Dulles Intl to Lisbon Humberto Delgado flight route?

Fly from Washington, D.C. Dulles Intl to Lisbon Humberto Delgado for the best Washington, D.C. Dulles Intl - Lisbon Humberto Delgado flight prices

How far in advance should I book a flight to Lisbon?

What cabin class options are available on Washington, D.C. Dulles Intl to Lisbon Humberto Delgado flights?

There are 3 cabin classes available to choose from on Washington, D.C. Dulles Intl to Lisbon Humberto Delgado flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Washington, D.C. Dulles Intl Airport to Lisbon flights?

You could potentially save up to 10% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Lisbon flight.

How have Washington, D.C. Dulles Intl Airport to Lisbon flight prices changed over time?

As of December 2025, prices for Washington, D.C. Dulles Intl Airport to Lisbon flights are approximately 48% more expensive when compared to flights at the same time last year.

What airlines fly to Lisbon?

How often are flights from Washington, D.C. to Lisbon delayed?

Historically, on average around 28% of flights between Washington, D.C. and Lisbon have experienced a delay on any given week. The average delay length over the past 12 months has been 140 minutes.

What is the most punctual flight time for Washington, D.C. to Lisbon flights?

Generally, flights departing in the evening tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Washington, D.C. to Lisbon flights?

According to our data, TAP AIR PORTUGAL have had the least number of delays on this route over the last 12 months; with about 26% of their flights experiencing any sort of delay.

Which airport is the most popular layover for flights between Washington, D.C. Dulles Intl Airport and Lisbon?

Dublin (DUB) was the most common stop: 28% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Washington, D.C. Dulles Intl Airport to Lisbon?

Flights via New York (JFK) offer the lowest average round-trip price of $454.

Which layover airport has the shortest travel time from Washington, D.C. Dulles Intl Airport to Lisbon?

Flights connecting via Paris (CDG) have the shortest average one-way travel time: 11h 45m.

Which layover airport has the shortest connection time from Washington, D.C. Dulles Intl Airport to Lisbon?

Paris (CDG) has the shortest average layover time for this route: 1h 10m.

How many flights depart from Washington, D.C. Dulles Intl Airport to Lisbon on average per day?

5 flights are operational daily from Washington, D.C. Dulles Intl Airport to Lisbon as of December 2025. The most popular departure time for this route is 10:00PM, with 77% of flights per day taking off in the evening.

How many flights depart from Washington, D.C. Dulles Intl Airport to Lisbon on average per week?

As of December 2025, 35 flights take off from Washington, D.C. Dulles Intl Airport and land in Lisbon each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

When to book flights from Washington, D.C. Dulles Intl Airport to Lisbon

Cheap Washington, D.C. Dulles Intl Airport to Lisbon (IAD to LIS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Lisbon

Best Price Found

Fastest flight time

Direct flights

Airports in Lisbon

How far is Washington, D.C. Dulles Intl to Lisbon Humberto Delgado by plane?

When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Lisbon Humberto Delgado Airport?

How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Lisbon Humberto Delgado Airport?

How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Lisbon Humberto Delgado Airport?

What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?

What is the most popular plane model from Washington, D.C. Dulles Intl Airport to Lisbon?

What is the most popular airline from Washington, D.C. Dulles Intl Airport to Lisbon?

Best airlines flying from Washington, D.C. Dulles Intl Airport to Lisbon

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Lisbon with momondo

United Airlines Flights From Washington, D.C. Dulles Intl Airport to Lisbon

TAP AIR PORTUGAL Flights From Washington, D.C. Dulles Intl Airport to Lisbon

Traveling to a place near Lisbon?

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Lisbon?

Can I find flights from Washington, D.C. to Lisbon with flexible booking policies on momondo?

How can momondo help me find flights from Washington, D.C. to Lisbon?

I’m not ready to book a flight from Washington, D.C. to Lisbon right now. Can momondo alert me if prices change?

An easier way to manage your Lisbon trip