How does KAYAK find such low prices on flights from District of Columbia to Lisbon?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from District of Columbia to Lisbon.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from District of Columbia to Lisbon?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Lisbon from District of Columbia is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from District of Columbia to Lisbon?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Lisbon with an airline and back to District of Columbia with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from District of Columbia to Lisbon?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Lisbon from District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$333 CHEAP FLIGHTS from District of Columbia to Lisbon

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Cheap Flights from District of Columbia to Lisbon

Cheap flights from District of Columbia to Lisbon with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Round-trip

One-way

Last minute

Direct

Mon, Nov 23 - Mon, Nov 30

11:20 am - 7:45 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

15h 25m2 stops Toronto Island Montreal Pierre Elliott Trudeau Intl

9:25 am - 3:45 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

35h 20m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

$718Multiple Airlines

Fri, Dec 11 - Sat, Dec 19

5:15 pm - 3:20 pmIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

17h 05m2 stops Dublin Madrid Barajas

9:00 pm - 7:20 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

27h 20m2 stops Madrid Barajas Dublin

$723Multiple Airlines

Fri, Nov 13 - Tue, Nov 17

9:05 pm - 4:55 pmIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

14h 50m1 stop Casablanca Mohamed V

5:55 pm - 7:05 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

30h 10m1 stop Casablanca Mohamed V

$729Royal Air Maroc

Fri, Nov 13 - Fri, Nov 20

10:30 pm - 10:40 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

7h 10mnonstop

4:40 pm - 8:30 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 50mnonstop

$730TAP AIR PORTUGAL

Thu, Feb 11 - Tue, Feb 16

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

7h 10mnonstop

10:50 am - 2:40 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 50mnonstop

$731TAP AIR PORTUGAL

Thu, Nov 12 - Tue, Nov 24

1:30 pm - 10:35 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

16h 05m1 stop Istanbul

5:55 am - 7:25 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

18h 30m1 stop Istanbul

$732Turkish Airlines

Tue, Nov 10 - Tue, Nov 17

1:30 pm - 3:10 pmIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

20h 40m1 stop Istanbul

4:10 pm - 11:45 amLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

24h 35m1 stop Istanbul

$732Turkish Airlines

Wed, Nov 11 - Wed, Nov 18

9:05 pm - 4:55 pmIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

14h 50m1 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

$733Royal Air Maroc

Wed, Nov 18 - Wed, Nov 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

$740Lufthansa

Wed, Nov 11 - Fri, Nov 20

6:00 pm - 2:50 pmIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

15h 50m1 stop Frankfurt am Main

6:00 am - 8:05 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

19h 05m1 stop Munich Franz Josef Strauss

$766Lufthansa

Mon, Oct 12 - Wed, Oct 21

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

7h 20mnonstop

11:40 am - 3:10 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 30mnonstop

$732TAP AIR PORTUGAL

Mon, Oct 12 - Wed, Oct 21

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

7h 20mnonstop

11:40 am - 3:10 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 30mnonstop

$735TAP AIR PORTUGAL

Mon, Oct 12 - Wed, Oct 21

6:10 pm - 8:30 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

33h 20m3 stops Amsterdam Schiphol Madrid Barajas Barcelona-El Prat

10:00 pm - 3:35 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

22h 35m2 stops Madrid Barajas Amsterdam Schiphol

$742Multiple Airlines

Tue, Oct 13 - Tue, Oct 27

9:40 pm - 11:20 pmIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

20h 40m1 stop Istanbul

5:55 am - 12:45 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

34h 50m1 stop Istanbul

$759Turkish Airlines

Mon, Oct 12 - Wed, Oct 21

1:15 pm - 11:35 pmIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

29h 20m1 stop Istanbul

5:55 am - 11:30 amLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

34h 35m1 stop Istanbul

$760Turkish Airlines

Wed, Oct 14 - Wed, Oct 21

8:20 pm - 10:50 pmIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

21h 30m2 stops Zurich Madrid Barajas

10:00 pm - 1:35 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

20h 35m2 stops Madrid Barajas Frankfurt am Main

$785Multiple Airlines

Mon, Oct 12 - Thu, Oct 22

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

15h 40m1 stop Casablanca Mohamed V

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

29h 00m1 stop Casablanca Mohamed V

$815Royal Air Maroc

Mon, Oct 12 - Mon, Oct 19

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

15h 40m1 stop Casablanca Mohamed V

12:50 pm - 7:00 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

11h 10m1 stop Casablanca Mohamed V

$851Royal Air Maroc

Mon, Oct 12 - Wed, Oct 21

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

7h 05mnonstop

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

8h 00mnonstop

$1,501Lufthansa

Mon, Oct 12 - Wed, Oct 21

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

7h 20mnonstop

11:40 am - 3:05 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 25mnonstop

$1,574JetBlue

Fri, Nov 13 - Fri, Nov 20

10:30 pm - 10:40 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

7h 10mnonstop

4:40 pm - 8:30 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 50mnonstop

$730TAP AIR PORTUGAL

Thu, Feb 11 - Tue, Feb 16

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

7h 10mnonstop

10:50 am - 2:40 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 50mnonstop

$731TAP AIR PORTUGAL

Sun, Nov 8 - Wed, Nov 18

10:15 pm - 10:05 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

$785United Airlines

Tue, Nov 10 - Wed, Nov 18

10:15 pm - 10:05 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

$785United Airlines

Wed, Nov 11 - Tue, Nov 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

$834Lufthansa

Mon, Nov 9 - Thu, Nov 19

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

$834Lufthansa

Sat, Oct 24 - Sat, Oct 31

9:35 pm - 8:40 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

7h 05mnonstop

12:20 pm - 4:40 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 20mnonstop

$1,148Multiple Airlines

Sat, Oct 24 - Sat, Oct 31

9:35 pm - 8:40 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

7h 05mnonstop

12:20 pm - 4:40 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 20mnonstop

$1,151Multiple Airlines

Sun, Jan 10 - Sat, Jan 16

10:30 pm - 10:40 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

$1,245JetBlue

Fri, Oct 23 - Thu, Oct 29

5:05 pm - 5:30 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

7h 25mnonstop

11:25 am - 4:15 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 50mnonstop

$1,245JetBlue

Low season	January
High season	July
Cheapest flight	$333

Best time to beat the crowds with an average 32% drop in price.

Most popular time to fly with an average 25% increase in price.

Flight from Washington Dulles Airport to Lisbon

How does KAYAK find such low prices on flights from District of Columbia to Lisbon?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from District of Columbia to Lisbon.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from District of Columbia to Lisbon?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Lisbon from District of Columbia is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from District of Columbia to Lisbon?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Lisbon with an airline and back to District of Columbia with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from District of Columbia to Lisbon?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Lisbon from District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.