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

Flights connecting via Casablanca (CMN) have the shortest average one-way travel time: 9h 50m.

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

Casablanca (CMN) has the shortest average layover time for this route: 1h 26m.

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 21% of their flights experiencing any sort of delay.

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. Sunday has historically seen more delays on average compared to the rest of the week.

What is the cheapest airline that flies from Washington, D.C. Dulles Intl to Lisbon Humberto Delgado?

United Airlines is the most popular carrier operating from Washington, D.C. Dulles Intl to Lisbon Humberto Delgado

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 24% 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 149 minutes.

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

4 flights are operational daily from Washington, D.C. Dulles Intl Airport to Lisbon as of August 2026. The most popular departure time for this route is 10:00PM, with 84% of flights per day taking off in the evening.

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 81% of people opting to fly with this airline when traveling to Lisbon. Keep in mind that there are 7 different airlines that fly to Lisbon on a routine basis, so you have a few additional options to choose from.

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

Casablanca (CMN) was the most common stop: 40% of momondo users choosing 1-stop flights on this route connected there.

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

As of August 2026, 31 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 Wed, with 23% 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 Istanbul (IST) offer the lowest average round-trip price of $628.

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 August 2026, there are 7 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.

$398 Cheap Flights from Washington, D.C. Dulles Intl Airport to Lisbon in 2026

Discover deals from 900+ travel sites with momondo.

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.

8:00 pm - 9:10 pmIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

44h 10m2 stops Orlando London Gatwick

8:25 am - 6:50 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

15h 25m1 stop Madrid Barajas

$660Multiple Airlines

Sun, Oct 11 - Tue, Oct 20

8:00 pm - 9:10 pmIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

44h 10m2 stops Orlando London Gatwick

8:25 am - 3:40 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

12h 15m1 stop Madrid Barajas

$660Multiple Airlines

Sun, Oct 11 - Fri, Oct 23

9:05 pm - 11:35 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

9h 30m1 stop Casablanca Mohamed V

11:40 am - 7:05 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

12h 25m1 stop Casablanca Mohamed V

$667Royal Air Maroc

Wed, Jan 13 - Wed, Jan 20

9:05 pm - 11:35 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

9h 30m1 stop Casablanca Mohamed V

12:35 pm - 7:05 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

11h 30m1 stop Casablanca Mohamed V

$667Royal Air Maroc

Sun, Jan 10 - Sun, Jan 17

10:35 pm - 10:55 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

7h 20mnonstop

10:55 am - 2:25 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 30mnonstop

$712TAP AIR PORTUGAL

Sat, Sep 19 - Fri, Sep 25

10:35 pm - 10:55 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

7h 20mnonstop

10:55 am - 2:25 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 30mnonstop

$719TAP AIR PORTUGAL

Sat, Sep 19 - Fri, Sep 25

10:55 pm - 11:30 pmIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

19h 35m1 stop Munich Franz Josef Strauss

5:00 am - 3:55 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

15h 55m1 stop Frankfurt am Main

$734Lufthansa

Tue, Nov 3 - Tue, Nov 10

10:55 pm - 11:30 pmIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

19h 35m1 stop Munich Franz Josef Strauss

5:00 am - 3:55 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

15h 55m1 stop Frankfurt am Main

$734Lufthansa

Tue, Nov 10 - Tue, Nov 17

11:15 pm - 10:05 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

6h 50mnonstop

5:00 am - 3:55 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

15h 55m1 stop Frankfurt am Main

$749United Airlines

Sun, Oct 25 - Wed, Nov 4

10:30 pm - 10:20 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

6h 50mnonstop

5:00 am - 8:05 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

20h 05m1 stop Frankfurt am Main

$749United Airlines

Wed, Dec 9 - Wed, Feb 24

Cheap last minute flights

Enter your travel dates to find the best prices.

5:40 pm - 6:05 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

7h 25mnonstop

10:55 am - 3:45 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 50mnonstop

$842TAP AIR PORTUGAL

Mon, Aug 10 - Tue, Oct 27

10:35 pm - 10:55 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

7h 20mnonstop

10:55 am - 3:45 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 50mnonstop

$859TAP AIR PORTUGAL

Mon, Aug 10 - Tue, Oct 27

9:00 pm - 6:50 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

28h 50m3 stops Casablanca Mohamed V Malaga Madrid Barajas

2:05 pm - 8:05 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

34h 00m2 stops Barcelona-El Prat Casablanca Mohamed V

$904Multiple Airlines

Mon, Aug 10 - Tue, Oct 27

9:00 pm - 6:50 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

28h 50m3 stops Casablanca Mohamed V Malaga Madrid Barajas

2:50 pm - 8:05 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

33h 15m2 stops Madrid Barajas Casablanca Mohamed V

$932Multiple Airlines

Mon, Aug 10 - Tue, Oct 27

9:00 pm - 5:40 pmIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

15h 40m1 stop Casablanca Mohamed V

6:40 pm - 7:00 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

29h 20m1 stop Casablanca Mohamed V

$1,120Royal Air Maroc

Mon, Aug 10 - Mon, Aug 31

9:00 pm - 5:40 pmIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

15h 40m1 stop Casablanca Mohamed V

6:40 pm - 7:00 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

29h 20m1 stop Casablanca Mohamed V

$1,252Royal Air Maroc

Mon, Aug 10 - Sat, Aug 29

8:20 pm - 8:55 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

31h 35m1 stop Kastrup Copenhagen

7:00 am - 5:00 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

39h 00m2 stops Oslo Gardermoen Kastrup Copenhagen

$1,376Scandinavian Airlines

Mon, Aug 10 - Thu, Aug 27

8:20 pm - 8:55 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

31h 35m1 stop Kastrup Copenhagen

12:45 pm - 11:49 amLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

52h 04m2 stops Oslo Gardermoen New York John F Kennedy Intl

$1,422Scandinavian Airlines

Mon, Aug 10 - Wed, Aug 26

10:25 pm - 10:30 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

7h 05mnonstop

12:20 pm - 3:15 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

7h 55mnonstop

$1,515Lufthansa

Mon, Aug 10 - Wed, Aug 12

10:25 pm - 10:30 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

7h 05mnonstop

12:20 pm - 3:15 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

7h 55mnonstop

$1,516Lufthansa

Sun, Aug 9 - Fri, Aug 14

Cheap direct flights

Enter your travel dates to find the best prices.

10:35 pm - 10:55 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

7h 20mnonstop

10:55 am - 2:25 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 30mnonstop

$712TAP AIR PORTUGAL

Sat, Sep 19 - Fri, Sep 25

10:35 pm - 10:55 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

7h 20mnonstop

10:55 am - 2:25 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 30mnonstop

$719TAP AIR PORTUGAL

Sat, Sep 19 - Fri, Sep 25

10:35 pm - 10:55 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

7h 20mnonstop

5:15 pm - 8:35 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 20mnonstop

$759JetBlue

Tue, Oct 13 - Mon, Oct 19

5:25 pm - 5:35 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

7h 10mnonstop

11:25 am - 3:15 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 50mnonstop

$759JetBlue

Sat, Nov 7 - Sat, Nov 14

10:25 pm - 10:30 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

7h 05mnonstop

12:20 pm - 3:40 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 20mnonstop

$762United Airlines

Sun, Oct 18 - Tue, Nov 3

10:15 pm - 10:05 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

6h 50mnonstop

12:20 pm - 3:40 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 20mnonstop

$762United Airlines

Tue, Nov 24 - Thu, Dec 3

10:30 pm - 10:20 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

6h 50mnonstop

11:55 am - 3:15 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 20mnonstop

$762Lufthansa

Wed, Dec 9 - Wed, Feb 24

10:30 pm - 10:20 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

6h 50mnonstop

12:20 pm - 3:40 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 20mnonstop

$762Lufthansa

Wed, Nov 25 - Thu, Dec 3

10:15 pm - 10:05 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

6h 50mnonstop

4:45 pm - 8:35 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 50mnonstop

$1,430Multiple Airlines

Sun, Nov 29 - Fri, Dec 4

10:30 pm - 10:20 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

6h 50mnonstop

10:55 am - 2:45 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 50mnonstop

$1,472Multiple Airlines

Sat, Dec 5 - Tue, Dec 8

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Royal Air Maroc flights from Washington, D.C. Dulles Intl Airport to Lisbon

Our best Royal Air Maroc deals on Washington, D.C. Dulles Intl Airport to Lisbon flight tickets

Royal Air Maroc

Jan 10

IAD9:05 pmWashington, D.C. Dulles Intl

9h 30m

1 stop

LIS11:35 amLisbon Humberto Delgado

Jan 17

LIS12:35 pmLisbon Humberto Delgado

11h 30m

1 stop

IAD7:05 pmWashington, D.C. Dulles Intl

$667

Royal Air Maroc

Jan 11

IAD9:05 pmWashington, D.C. Dulles Intl

9h 30m

1 stop

LIS11:35 amLisbon Humberto Delgado

Jan 18

LIS12:35 pmLisbon Humberto Delgado

11h 30m

1 stop

IAD7:05 pmWashington, D.C. Dulles Intl

$668

Royal Air Maroc

Jan 13

IAD9:05 pmWashington, D.C. Dulles Intl

9h 30m

1 stop

LIS11:35 amLisbon Humberto Delgado

Jan 22

LIS12:35 pmLisbon Humberto Delgado

11h 30m

1 stop

IAD7:05 pmWashington, D.C. Dulles Intl

$669

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

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

Iberia

Aug 19

IAD5:00 pmWashington, D.C. Dulles Intl

13h 50m

1 stop

LIS11:50 amLisbon Humberto Delgado

Aug 25

LIS6:35 amLisbon Humberto Delgado

17h 15m

1 stop

IAD6:50 pmWashington, D.C. Dulles Intl

$851

Iberia

Aug 14

IAD5:00 pmWashington, D.C. Dulles Intl

13h 50m

1 stop

LIS11:50 amLisbon Humberto Delgado

Aug 25

LIS8:25 amLisbon Humberto Delgado

15h 25m

1 stop

IAD6:50 pmWashington, D.C. Dulles Intl

$863

Iberia

Aug 19

IAD5:00 pmWashington, D.C. Dulles Intl

13h 50m

1 stop

LIS11:50 amLisbon Humberto Delgado

Aug 25

LIS6:35 amLisbon Humberto Delgado

17h 15m

1 stop

IAD6:50 pmWashington, D.C. Dulles Intl

$879

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

Cheapest round-trip

Washington, D.C.Lisbon

IAD Washington, D.C. Dulles Intl - LIS Lisbon Humberto Delgado

IADLIS

Washington, D.C. Dulles Intl

Sun 10/11

8:00 pm-9:10 pm

2 stops44h 10m

Lisbon Humberto Delgado

Tue 10/20

8:25 am-6:50 pm

1 stop15h 25m

$660

Washington, D.C.Lisbon

IAD Washington, D.C. Dulles Intl - LIS Lisbon Humberto Delgado

IADLIS

Washington, D.C. Dulles Intl

Sun 10/11

8:00 pm-9:10 pm

2 stops44h 10m

Lisbon Humberto Delgado

Fri 10/23

8:25 am-3:40 pm

1 stop12h 15m

$660

Washington, D.C.Lisbon

IAD Washington, D.C. Dulles Intl - LIS Lisbon Humberto Delgado

IADLIS

Washington, D.C. Dulles Intl

Wed 1/13

9:05 pm-11:35 am

1 stop9h 30m

Lisbon Humberto Delgado

Wed 1/20

11:40 am-7:05 pm

1 stop12h 25m

$667

Washington, D.C.Lisbon

IAD Washington, D.C. Dulles Intl - LIS Lisbon Humberto Delgado

IADLIS

Washington, D.C. Dulles Intl

Sun 1/10

9:05 pm-11:35 am

1 stop9h 30m

Lisbon Humberto Delgado

Sun 1/17

12:35 pm-7:05 pm

1 stop11h 30m

$667

Quickest round-trip

Washington, D.C.Lisbon

IAD Washington, D.C. Dulles Intl - LIS Lisbon Humberto Delgado

IADLIS

Washington, D.C. Dulles Intl

Sat 9/19

10:35 pm-10:55 am

Nonstop7h 20m

Lisbon Humberto Delgado

Fri 9/25

10:55 am-2:25 pm

Nonstop8h 30m

$712

Washington, D.C.Lisbon

IAD Washington, D.C. Dulles Intl - LIS Lisbon Humberto Delgado

IADLIS

Washington, D.C. Dulles Intl

Sat 9/19

10:35 pm-10:55 am

Nonstop7h 20m

Lisbon Humberto Delgado

Fri 9/25

10:55 am-2:25 pm

Nonstop8h 30m

$719

Washington, D.C.Lisbon

IAD Washington, D.C. Dulles Intl - LIS Lisbon Humberto Delgado

IADLIS

Washington, D.C. Dulles Intl

Tue 11/3

10:55 pm-11:30 pm

1 stop19h 35m

Lisbon Humberto Delgado

Tue 11/10

5:00 am-3:55 pm

1 stop15h 55m

$734

Washington, D.C.Lisbon

IAD Washington, D.C. Dulles Intl - LIS Lisbon Humberto Delgado

IADLIS

Washington, D.C. Dulles Intl

Tue 11/10

10:55 pm-11:30 pm

1 stop19h 35m

Lisbon Humberto Delgado

Tue 11/17

5:00 am-3:55 pm

1 stop15h 55m

$734

Washington, D.C.Lisbon

IAD Washington, D.C. Dulles Intl - LIS Lisbon Humberto Delgado

IADLIS

Washington, D.C. Dulles Intl

Sun 10/25

11:15 pm-10:05 am

Nonstop6h 50m

Lisbon Humberto Delgado

Wed 11/4

5:00 am-3:55 pm

1 stop15h 55m

$749

Washington, D.C.Lisbon

IAD Washington, D.C. Dulles Intl - LIS Lisbon Humberto Delgado

IADLIS

Washington, D.C. Dulles Intl

Wed 12/9

10:30 pm-10:20 am

Nonstop6h 50m

Lisbon Humberto Delgado

Wed 2/24

5:00 am-8:05 pm

1 stop20h 05m

$749

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 typical price of a round-trip flight between Washington, D.C. Dulles Intl Airport and Lisbon?

Prices are currently low for flights on this route.

Typical prices usually range from $930 to $1,245.
The lowest price recently found on this route was $663.

What is the cheapest month to fly to Lisbon?

In general, January 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 $665. If you are unable to visit Lisbon during the month of January, then departing from Washington, D.C. Dulles Intl Airport during the month February is also very affordable. Most momondo users find prices during this month for around $733.

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 $793. 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 $937.

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 $825. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $879 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 from Washington, D.C. Dulles Intl Airport 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 $994 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 $850 on momondo.

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

There are 3 cabin classes available to choose from on Washington, D.C. Dulles Intl Airport to Lisbon 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?

No. A direct flight is the cheapest option for a flight between Washington, D.C. Dulles Intl Airport to Lisbon.

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

As of August 2026, prices for Washington, D.C. Dulles Intl Airport to Lisbon flights are approximately 41% 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	$547
Fastest flight time	6h 50m
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 $547. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Lisbon found on momondo in the last 72 hours is $647.

The fastest flight from Washington, D.C. Dulles Intl Airport to Lisbon takes 6h 50m

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

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Lisbon

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 6h 50m 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 August 2026, there are 7 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 777 (33.88% of total bookings). The next most popular plane models are Airbus A321neo (22.98%), Boeing 767-400 (15.71%), and Boeing 767-300 (5.67%).
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 (79% of total bookings). The next most popular airlines are United Airlines (13%), Royal Air Maroc (2%), and Lufthansa (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 $481	Free Cancellation	Rating 7.4 1,925 reviews	Search Scandinavian Airlines flights
Royal Air Maroc	PriceFrom $544	Free Cancellation	Rating 6.2 627 reviews	Search Royal Air Maroc flights
TAP AIR PORTUGAL	PriceFrom $548	Free Cancellation	Rating 7.2 2,358 reviews	Search TAP AIR PORTUGAL flights
Turkish Airlines	PriceFrom $580	Free Cancellation	Rating 7.4 4,468 reviews	Search Turkish Airlines flights
United Airlines	PriceFrom $790	Free Cancellation	Rating 7.4 10,076 reviews	Search United Airlines flights
Lufthansa	PriceFrom $1,054	Free Cancellation	Rating 6.8 8,178 reviews	Search Lufthansa flights
JetBlue	PriceFrom $1,148	Free Cancellation	Rating 7.1 3,023 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 $790. Generally, United Airlines has 6 flights on this route every week with an average price of $1,247. 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 $548, round-trip. It should be noted that an average TAP AIR PORTUGAL flight deal for this route in this time was higher, at $1,028 round-trip. TAP AIR PORTUGAL operates 5 flights out of Washington, D.C. Dulles Intl Airport into Lisbon in an average week, so prices vary by time and availability. 2,358 TAP AIR PORTUGAL reviews by users on momondo have scored the airline at 7.2/10.

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Royal Air Maroc flights from Washington, D.C. Dulles Intl Airport to Lisbon

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