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

Historically, on average around 28% of flights between Washington, D.C. and Portugal have experienced a delay on any given week. The average delay length over the past 12 months has been 145 minutes.

What is the cheapest airline that flies from Washington, D.C. to Portugal?

British Airways, American Airlines, and Air Canada are the most popular carriers operating from Washington, D.C. to Portugal

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

Saturday 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.

What airlines fly to Portugal?

TAP AIR PORTUGAL, United Airlines and Lufthansa are the top three most popular airlines that fly to Portugal from Washington, D.C. according to our data. TAP AIR PORTUGAL is the first choice among our users, with 78% of people opting to fly with this airline when traveling to Portugal. Keep in mind that there are 15 different airlines that fly to Portugal on a routine basis, so you have a few additional options to choose from.

Which airline has the best punctuality record on Washington, D.C. to Portugal 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 is the most punctual flight time for Washington, D.C. to Portugal 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 many flights depart from Washington, D.C. to Portugal on average per week?

As of January 2026, 11 flights take off from Washington, D.C. and land in Portugal each week. The most common flight departure day for this route is Mon, with 18% of weekly flights taking off on this day.

How long is the flight from Washington, D.C. to Portugal?

Average flight duration from Washington, D.C. to Portugal depends on which airport you fly into and out of. Flying from Washington, D.C. to Lisbon is 9h 55m on average, while flying from Baltimore to Lisbon is 13h 05m on average. Lisbon is the most popular airport in Portugal.

How many flights depart from Washington, D.C. to Portugal on average per day?

As of January 2026, 1 flights take off from Washington, D.C. and land in Portugal each day. The most common flight departure time for this route is 5:00PM, with 50% of daily flights taking off in the afternoon.

When did momondo last update prices for flights from Washington, D.C. to Portugal?

Prices for flights from Washington, D.C. to Portugal are refreshed on a daily basis.

How many operators does momondo search for flights from Washington, D.C. to Portugal?

The number of operators available for flights from Washington, D.C. to Portugal is 15 as of January 2026.

How old do you have to be to fly from Washington, D.C. to Portugal?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Portugal.

What documentation or ID do you need to fly to Portugal?

The travel and health documents required for your trip to Portugal can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portugal. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$246 Cheap Flights from Washington, D.C. to Portugal in 2026

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. to Portugal

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:30 pm - 5:00 pm

IAD

OPO

13h 30m

1 stop

8:05 pm - 4:15 pm

OPO

IAD

24h 10m

1 stop

$371TAP AIR PORTUGAL

Fri, Mar 20 - Fri, Mar 27

10:30 pm - 3:45 pm

IAD

FAO

12h 15m

1 stop

4:35 pm - 3:15 pm

FAO

IAD

27h 40m

1 stop

$371TAP AIR PORTUGAL

Wed, Feb 18 - Fri, Mar 6

10:30 pm - 7:00 pm

IAD

OPO

15h 30m

1 stop

10:15 pm - 9:00 pm

OPO

IAD

27h 45m

1 stop

$378TAP AIR PORTUGAL

Wed, Feb 18 - Tue, Feb 24

9:00 pm - 11:50 am

IAD

LIS

9h 50m

1 stop

6:40 pm - 7:00 pm

LIS

IAD

29h 20m

1 stop

$543Royal Air Maroc

Wed, Apr 15 - Tue, Apr 21

8:09 am - 9:30 am

BWI

OPO

21h 21m

2 stops

6:00 am - 9:42 pm

OPO

BWI

19h 42m

2 stops

$582United Airlines

Tue, Mar 10 - Tue, Mar 17

8:10 pm - 9:30 am

DCA

OPO

9h 20m

1 stop

6:00 am - 8:59 pm

OPO

DCA

18h 59m

2 stops

$582United Airlines

Tue, Mar 10 - Tue, Mar 17

1:55 pm - 10:30 am

DCA

OPO

16h 35m

2 stops

11:25 am - 10:20 am

OPO

DCA

26h 55m

2 stops

$594Delta

Mon, Mar 16 - Tue, Mar 24

1:55 pm - 10:30 am

DCA

OPO

16h 35m

2 stops

11:25 am - 7:22 am

OPO

DCA

23h 57m

2 stops

$595Delta

Tue, Mar 10 - Wed, Mar 18

1:25 pm - 10:40 am

DCA

FNC

16h 15m

2 stops

11:20 am - 10:17 pm

FNC

DCA

15h 57m

2 stops

$919Iberia

Sat, May 2 - Sun, May 10

5:59 pm - 10:40 am

DCA

FNC

35h 41m

2 stops

1:05 pm - 10:17 pm

FNC

DCA

38h 12m

2 stops

$1,052Iberia

Fri, May 1 - Thu, May 7

Turkish Airlines flights from Washington, D.C. to Portugal

Our best Turkish Airlines deals on Washington, D.C. to Portugal flight tickets

Turkish Airlines

Mar 3

IAD1:30 pmWashington, D.C. Dulles Intl

28h 30m

1 stop

LIS11:00 pmLisbon Humberto Delgado

Mar 18

LIS11:40 amLisbon Humberto Delgado

29h 05m

1 stop

IAD12:45 pmWashington, D.C. Dulles Intl

$587

Turkish Airlines

Feb 9

IAD9:15 pmWashington, D.C. Dulles Intl

36h 50m

1 stop

LIS3:05 pmLisbon Humberto Delgado

Feb 18

LIS11:40 amLisbon Humberto Delgado

36h 40m

1 stop

IAD7:20 pmWashington, D.C. Dulles Intl

$590

Turkish Airlines

Mar 5

IAD9:15 pmWashington, D.C. Dulles Intl

32h 25m

1 stop

LIS10:40 amLisbon Humberto Delgado

Mar 11

LIS11:40 amLisbon Humberto Delgado

36h 40m

1 stop

IAD8:20 pmWashington, D.C. Dulles Intl

$595

Scandinavian Airlines flights from Washington, D.C. to Portugal

Our best Scandinavian Airlines deals on Washington, D.C. to Portugal flight tickets

Scandinavian Airlines

Apr 19

IAD8:20 pmWashington, D.C. Dulles Intl

32h 20m

1 stop

FAO9:40 amFaro

Apr 25

FAO7:35 pmFaro

26h 15m

2 stops

IAD4:50 pmWashington, D.C. Dulles Intl

$529

Scandinavian Airlines

May 5

IAD1:19 pmWashington, D.C. Dulles Intl

27h 46m

2 stops

LIS10:05 pmLisbon Humberto Delgado

May 19

LIS4:25 pmLisbon Humberto Delgado

29h 25m

1 stop

IAD4:50 pmWashington, D.C. Dulles Intl

$541

Scandinavian Airlines

Apr 20

IAD8:20 pmWashington, D.C. Dulles Intl

14h 15m

1 stop

LIS3:35 pmLisbon Humberto Delgado

Apr 29

LIS12:45 pmLisbon Humberto Delgado

52h 20m

2 stops

IAD12:05 pmWashington, D.C. Dulles Intl

$542

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Fri 3/20

11:30 pm-5:00 pm

1 stop13h 30m

Porto

Fri 3/27

8:05 pm-4:15 pm

1 stop24h 10m

$371

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Wed 2/18

10:30 pm-3:45 pm

1 stop12h 15m

Faro

Fri 3/6

4:35 pm-3:15 pm

1 stop27h 40m

$371

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 2/18

10:30 pm-7:00 pm

1 stop15h 30m

Porto

Tue 2/24

10:15 pm-9:00 pm

1 stop27h 45m

$378

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Wed 4/15

9:00 pm-11:50 am

1 stop9h 50m

Lisbon Humberto Delgado

Tue 4/21

6:40 pm-7:00 pm

1 stop29h 20m

$543

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Tue 3/10

8:09 am-9:30 am

2 stops21h 21m

Porto

Tue 3/17

6:00 am-9:42 pm

2 stops19h 42m

$582

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Tue 3/10

8:10 pm-9:30 am

1 stop9h 20m

Porto

Tue 3/17

6:00 am-8:59 pm

2 stops18h 59m

$582

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Mon 3/16

1:55 pm-10:30 am

2 stops16h 35m

Porto

Tue 3/24

11:25 am-10:20 am

2 stops26h 55m

$594

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Tue 3/10

1:55 pm-10:30 am

2 stops16h 35m

Porto

Wed 3/18

11:25 am-7:22 am

2 stops23h 57m

$595

Washington, D.C.Funchal

DCA - FNC

DCAFNC

Washington, D.C. Reagan-National

Sat 5/2

1:25 pm-10:40 am

2 stops16h 15m

Funchal Madeira

Sun 5/10

11:20 am-10:17 pm

2 stops15h 57m

$919

Washington, D.C.Funchal

DCA - FNC

DCAFNC

Washington, D.C. Reagan-National

Fri 5/1

5:59 pm-10:40 am

2 stops35h 41m

Funchal Madeira

Thu 5/7

1:05 pm-10:17 pm

2 stops38h 12m

$1,052

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. to Portugal

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

Other information

What is the cheapest month to fly to Portugal?

The cheapest month to fly to Portugal from Washington, D.C. is in February. Flight prices, which tend to average around $667, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Portugal from Washington, D.C. during January instead. Flights to Portugal in January, while not as cheap as those in February, still average around $730.

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

According to our data, Monday is the cheapest day to fly to Portugal from Washington, D.C.. The lowest ticket price found for a Monday departure recently was $696. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Portugal is Friday, with ticket prices averaging around $861.

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

Our most recent data shows that the best time of day to fly to Portugal is in the afternoon. Flights from Washington, D.C. to Portugal during this time can be as low as $744. In the evening is when there is more demand to fly to Portugal, so prices are often more expensive at around $811 per ticket.

What is the cheapest Washington, D.C. to Portugal flight route?

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

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

You are more likely to see cheaper flights to Portugal from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $910 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from Washington, D.C. for as low as $751 on momondo.

What cabin class options are available on Washington, D.C. to Portugal flights?

There are 3 cabin classes available to choose from on Washington, D.C. to Portugal 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. to Portugal flights?

You could potentially save up to 31% on your flight if you consider stops on a Washington, D.C. to Portugal flight.

Cheap Washington, D.C. to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Portugal

Best Price Found	$390
Fastest flight time	7h 05m
Direct flights	Every day
Airports in Portugal	99 airports

The best one-way flight to Portugal from Washington, D.C. in the past 72 hours is $390. The best round-trip flight deal from Washington, D.C. to Portugal found on momondo in the last 72 hours is $541.

The fastest flight from Washington, D.C. to Portugal takes 7h 05m

Direct flights go from Washington, D.C. to Portugal every day.

There are 99 airports in Portugal. From Washington, D.C. there are direct flights to Lisbon Humberto Delgado (LIS).

Search flight deals

When did momondo last update prices for flights from Washington, D.C. to Portugal?
Prices for flights from Washington, D.C. to Portugal are refreshed on a daily basis.
How many operators does momondo search for flights from Washington, D.C. to Portugal?
The number of operators available for flights from Washington, D.C. to Portugal is 15 as of January 2026.
How old do you have to be to fly from Washington, D.C. to Portugal?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Portugal.
What documentation or ID do you need to fly to Portugal?
The travel and health documents required for your trip to Portugal can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portugal. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Washington, D.C. to Portugal?
momondo data reveals that the most frequently booked plane model on the route from Washington, D.C. to Portugal is Boeing 767-400, representing 24.41% of all bookings. The subsequent popular models are Boeing 777 at 19.13%, Airbus A321neo at 18.77%, and Boeing 767-300 at 9.52%.

Best airlines flying from Washington, D.C. to Portugal

Compare and see reviews for airlines that fly from Washington, D.C. to Portugal with momondo

Airline	Rating	Free Cancellation	Price
PLAY	PriceFrom $344	Free Cancellation	Rating 7.0 103 reviews	Search PLAY flights
Delta	PriceFrom $439	Free Cancellation	Rating 7.9 8,113 reviews	Search Delta flights
TAP AIR PORTUGAL	PriceFrom $443	Free Cancellation	Rating 7.1 2,130 reviews	Search TAP AIR PORTUGAL flights
SWISS	PriceFrom $444	Free Cancellation	Rating 7.6 1,861 reviews	Search SWISS flights
KLM	PriceFrom $477	Free Cancellation	Rating 7.7 1,442 reviews	Search KLM flights
British Airways	PriceFrom $480	Free Cancellation	Rating 6.7 7,701 reviews	Search British Airways flights
Scandinavian Airlines	PriceFrom $481	Free Cancellation	Rating 7.3 1,667 reviews	Search Scandinavian Airlines flights
United Airlines	PriceFrom $494	Free Cancellation	Rating 7.4 9,199 reviews	Search United Airlines flights
American Airlines	PriceFrom $508	Free Cancellation	Rating 7.2 11,189 reviews	Search American Airlines flights
Iberia	PriceFrom $515	Free Cancellation	Rating 7.0 3,098 reviews	Search Iberia flights

Why use momondo?

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

It is quick and easy to find Washington, D.C. to Portugal flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Portugal that suits you.

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

momondo does allow users to show only those flights to Portugal from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Washington, D.C. to Portugal flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Portugal from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Portugal 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

Wed 2/25

Wed 3/4

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

Popular cities in Portugal

Flights to Lisbonfrom $339

Flights to Portofrom $317

Flights to Funchalfrom $376

Flights to Farofrom $364

Flights to Ponta Delgadafrom $391

Flights to Lajesfrom $391

Flights to Hortafrom $577

Flights to Pico Islandfrom $569

Flights to Porto Santofrom $442

Flights to Velasfrom $567

Washington, D.C. flight routes

Flights from Baltimore/Washington to Wilmington New Hanover County

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

Flights from Baltimore/Washington to Chicago O'Hare Intl

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

Flights from Baltimore/Washington to Orlando

Flights from Washington, D.C. Dulles Intl to Atlanta Hartsfield-Jackson

Cheap flights from Washington, D.C. to Portugal from $256

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Portugal departing on 2/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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. to Portugal

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Turkish Airlines flights from Washington, D.C. to Portugal

Our best Turkish Airlines deals on Washington, D.C. to Portugal flight tickets

Scandinavian Airlines flights from Washington, D.C. to Portugal

Our best Scandinavian Airlines deals on Washington, D.C. to Portugal flight tickets

momondo Fare Finder

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

See travel insights to Portugal from

How to get the cheapest flight ticket from Washington, D.C. to Portugal

What is the cheapest month to fly to Portugal?

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

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

What is the cheapest Washington, D.C. to Portugal flight route?

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

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

What cabin class options are available on Washington, D.C. to Portugal flights?

There are 3 cabin classes available to choose from on Washington, D.C. to Portugal 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. to Portugal flights?

You could potentially save up to 31% on your flight if you consider stops on a Washington, D.C. to Portugal flight.

What is the cheapest airline that flies from Washington, D.C. to Portugal?

British Airways, American Airlines, and Air Canada are the most popular carriers operating from Washington, D.C. to Portugal

What airlines fly to Portugal?

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

Historically, on average around 28% of flights between Washington, D.C. and Portugal have experienced a delay on any given week. The average delay length over the past 12 months has been 145 minutes.

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

Saturday 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 Portugal 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.

How many flights depart from Washington, D.C. to Portugal on average per day?

As of January 2026, 1 flights take off from Washington, D.C. and land in Portugal each day. The most common flight departure time for this route is 5:00PM, with 50% of daily flights taking off in the afternoon.

How many flights depart from Washington, D.C. to Portugal on average per week?

As of January 2026, 11 flights take off from Washington, D.C. and land in Portugal each week. The most common flight departure day for this route is Mon, with 18% of weekly flights taking off on this day.

How long is the flight from Washington, D.C. to Portugal?

Average flight duration from Washington, D.C. to Portugal depends on which airport you fly into and out of. Flying from Washington, D.C. to Lisbon is 9h 55m on average, while flying from Baltimore to Lisbon is 13h 05m on average. Lisbon is the most popular airport in Portugal.

Cheap Washington, D.C. to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Portugal

Best Price Found

Fastest flight time

Direct flights

Airports in Portugal

When did momondo last update prices for flights from Washington, D.C. to Portugal?

How many operators does momondo search for flights from Washington, D.C. to Portugal?

How old do you have to be to fly from Washington, D.C. to Portugal?

What documentation or ID do you need to fly to Portugal?

What is the most popular plane model from Washington, D.C. to Portugal?

Best airlines flying from Washington, D.C. to Portugal

Compare and see reviews for airlines that fly from Washington, D.C. to Portugal with momondo

Why use momondo?

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

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

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

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

An easier way to manage your Portugal 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.

Get notified when prices go down

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

Find better results for your trip to Portugal

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo