Find Deals on Flights from Portugal to Washington Dulles Intl

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
Students
under 26
The price shown for each flight will be the average for all passengers including any infants.
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Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Portugal to Washington Dulles Intl

(Round-trip)
Depart: Fri Jan 13 2017 Return: Sat Jan 14 2017 Trip spans 2 days
United
United
LIS
5:15a
IAD
2:47p
33h 32m
1 stop
IAD
4:55p
LIS
12:35p
19h 40m
1 stop
Depart: Tue Feb 21 2017 Return: Fri Feb 24 2017 Trip spans 4 days
Turkish Airlines
Turkish Airlines
LIS
11:15a
IAD
7:05p
31h 50m
1 stop
IAD
5:55p
LIS
12:35a
30h 40m
1 stop
Depart: Wed Dec 14 2016 Return: Sun Jan 15 2017 Trip spans 33 days
British Airways
British Airways
LIS
5:40a
IAD
8:30p
14h 50m
1 stop
IAD
5:30p
LIS
8:20a
14h 50m
1 stop
Depart: Thu Dec 29 2016 Return: Wed Feb 15 2017 Trip spans 49 days
Delta
Delta
LIS
12:00a
IAD
3:45p
15h 45m
1 stop
IAD
5:45a
LIS
4:45a
23h 00m
2 stops
Depart: Mon Dec 26 2016 Return: Mon Jan 2 2017 Trip spans 8 days
Air France
Air France
LIS
12:40a
IAD
4:10p
15h 30m
1 stop
IAD
1:35p
LIS
12:20p
22h 45m
1 stop
Depart: Thu Dec 15 2016 Return: Wed Jan 18 2017 Trip spans 35 days
British Airways
British Airways
LIS
2:05p
IAD
2:40p
24h 35m
1 stop
IAD
1:25p
LIS
12:30p
23h 05m
1 stop
Depart: Fri Apr 14 2017 Return: Sat Apr 22 2017 Trip spans 9 days
Turkish Airlines
Turkish Airlines
LIS
7:30a
IAD
8:15p
36h 45m
1 stop
IAD
7:05p
LIS
1:30a
30h 25m
1 stop
Depart: Mon Dec 19 2016 Return: Tue Jan 10 2017 Trip spans 23 days
British Airways
British Airways
LIS
2:05p
IAD
2:40p
24h 35m
1 stop
IAD
5:55p
LIS
12:30p
18h 35m
1 stop
Depart: Tue Dec 20 2016 Return: Tue Jan 3 2017 Trip spans 15 days
Turkish Airlines
Turkish Airlines
LIS
11:15a
IAD
7:05p
31h 50m
1 stop
IAD
5:55p
LIS
5:20a
35h 25m
1 stop
Depart: Wed Jan 4 2017 Return: Wed Jan 11 2017 Trip spans 8 days
British Airways
British Airways
LIS
1:30p
IAD
2:40p
25h 10m
2 stops
IAD
5:30p
LIS
8:20a
14h 50m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

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Airports
Origin

Lisbon
$482
Destination

Washington
$482
Airlines Airline reviews

6 travelers who booked a flight from Lisbon to Washington rated their chosen airlines with an average of 7.4.

Overall
7.3
Boarding
7.3
Crew
8.0
Comfort
7.3
Food
7.7
Entertainment
6.7