Find Cheap Flights from Portugal to Washington

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Portugal to Washington

(Round-trip)
Depart: Fri Dec 1 2017 Return: Sun Dec 3 2017 Trip spans 3 days
United
United
LIS
7:55a
IAD
2:00p
30h 05m
1 stop
IAD
3:35a
LIS
10:35p
19h 00m
1 stop
Depart: Thu Oct 5 2017 Return: Sun Oct 8 2017 Trip spans 4 days
Turkish Airlines
Turkish Airlines
LIS
11:45a
IAD
8:10p
32h 25m
1 stop
IAD
7:00p
LIS
5:50a
34h 50m
1 stop
Depart: Mon Jan 8 2018 Return: Mon Jan 15 2018 Trip spans 8 days
British Airways
British Airways
LIS
5:45a
DCA
10:24p
16h 39m
2 stops
DCA
12:50p
LIS
7:45a
18h 55m
2 stops
Depart: Sun Sep 24 2017 Return: Wed Oct 18 2017 Trip spans 25 days
Air France
Air France
LIS
1:40a
IAD
4:50p
15h 10m
1 stop
IAD
7:40a
LIS
1:30a
17h 50m
1 stop
Depart: Wed Aug 23 2017 Return: Wed Aug 30 2017 Trip spans 8 days
$1008
Select
Delta
Delta
LIS
1:40a
IAD
7:45p
18h 05m
1 stop
IAD
2:15p
LIS
8:40a
18h 25m
1 stop
Depart: Sat Aug 12 2017 Return: Sun Aug 27 2017 Trip spans 16 days
$1078
Select
Lufthansa
Lufthansa
LIS
8:15a
IAD
4:30p
8h 15m
nonstop
IAD
6:20p
LIS
1:35a
7h 15m
nonstop
Depart: Sun Nov 12 2017 Return: Sat Nov 18 2017 Trip spans 7 days
Turkish Airlines
Turkish Airlines
LIS
6:20a
IAD
7:10p
36h 50m
1 stop
IAD
5:55p
LIS
12:25a
30h 30m
1 stop
Depart: Mon Nov 13 2017 Return: Sat Nov 18 2017 Trip spans 6 days
Turkish Airlines
Turkish Airlines
LIS
6:20a
IAD
7:10p
36h 50m
1 stop
IAD
5:55p
LIS
12:25a
30h 30m
1 stop
Depart: Wed Sep 20 2017 Return: Thu Oct 19 2017 Trip spans 30 days
Turkish Airlines
Turkish Airlines
LIS
7:30a
IAD
8:10p
36h 40m
1 stop
IAD
7:00p
LIS
1:30a
30h 30m
1 stop
Depart: Mon Sep 25 2017 Return: Wed Oct 18 2017 Trip spans 24 days
Air France
Air France
LIS
1:40a
IAD
4:50p
15h 10m
1 stop
IAD
7:40a
LIS
1:30a
17h 50m
1 stop
Depart: Sat Oct 14 2017 Return: Mon Oct 23 2017 Trip spans 10 days
British Airways
British Airways
LIS
2:50p
IAD
4:35p
25h 45m
2 stops
IAD
6:20p
LIS
9:05a
14h 45m
1 stop
Depart: Wed Oct 11 2017 Return: Mon Oct 23 2017 Trip spans 13 days
Air France
Air France
LIS
1:40a
IAD
7:45p
18h 05m
1 stop
IAD
7:40a
LIS
1:30a
17h 50m
1 stop
Depart: Sun Dec 10 2017 Return: Wed Jan 3 2018 Trip spans 25 days
Turkish Airlines
Turkish Airlines
LIS
11:15a
IAD
7:10p
31h 55m
1 stop
IAD
5:55p
LIS
12:25a
30h 30m
1 stop
Depart: Sat Sep 16 2017 Return: Fri Sep 29 2017 Trip spans 14 days
United
United
LIS
6:25a
IAD
10:18p
15h 53m
1 stop
IAD
2:25p
LIS
12:20p
21h 55m
1 stop
Depart: Fri Sep 22 2017 Return: Wed Oct 18 2017 Trip spans 27 days
Air France
Air France
LIS
1:40a
IAD
7:45p
18h 05m
1 stop
IAD
7:40a
LIS
1:30a
17h 50m
1 stop
Depart: Thu Sep 21 2017 Return: Thu Oct 19 2017 Trip spans 29 days
Turkish Airlines
Turkish Airlines
LIS
7:30a
IAD
8:10p
36h 40m
1 stop
IAD
7:00p
LIS
5:50a
34h 50m
1 stop
Depart: Tue Aug 15 2017 Return: Tue Sep 5 2017 Trip spans 22 days
$1050
Select
Delta
Delta
LIS
1:40a
IAD
7:45p
18h 05m
1 stop
IAD
1:40p
LIS
5:35a
15h 55m
1 stop
Depart: Sat Sep 23 2017 Return: Wed Oct 18 2017 Trip spans 26 days
Air France
Air France
LIS
1:40a
IAD
4:50p
15h 10m
1 stop
IAD
7:40a
LIS
1:30a
17h 50m
1 stop
Depart: Tue Oct 10 2017 Return: Thu Oct 19 2017 Trip spans 10 days
Turkish Airlines
Turkish Airlines
LIS
7:30a
IAD
8:10p
36h 40m
1 stop
IAD
7:00p
LIS
1:30a
30h 30m
1 stop
Depart: Fri Oct 13 2017 Return: Mon Oct 23 2017 Trip spans 11 days
Air France
Air France
LIS
1:40a
IAD
4:55p
15h 15m
1 stop
IAD
7:40a
LIS
1:30a
17h 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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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.

If you have more questions or if you have a bad price to report to us,
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Airports
Origin

Lisbon
$532
Destination

Washington
only $532
only $658
Airlines Airline reviews

9 travelers who booked a flight from Lisbon to Washington rated their chosen airlines with an average of 7.6.

Overall
7.5
Boarding
7.5
Crew
8.0
Comfort
7.5
Food
7.8
Entertainment
7.1