Find Deals on 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
Students
under 26
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: Tue Mar 7 2017 Return: Tue Mar 28 2017 Trip spans 21 days
British Airways
British Airways
LIS
2:15a
IAD
8:30p
18h 15m
1 stop
IAD
2:00p
LIS
9:05a
19h 05m
1 stop
Depart: Sun Mar 5 2017 Return: Sat Mar 25 2017 Trip spans 20 days
Turkish Airlines
Turkish Airlines
LIS
6:30a
IAD
7:05p
36h 35m
1 stop
IAD
7:00p
LIS
5:50a
34h 50m
1 stop
Depart: Fri Mar 10 2017 Return: Sat Mar 25 2017 Trip spans 15 days
Air Canada
Air Canada
LIS
12:05a
DCA
3:59p
15h 54m
2 stops
DCA
12:45p
LIS
7:20a
18h 35m
2 stops
Depart: Fri Mar 31 2017 Return: Sat Apr 8 2017 Trip spans 9 days
American Airlines
American Airlines
LIS
8:35a
DCA
12:08a
15h 33m
2 stops
DCA
8:27a
LIS
12:00a
15h 33m
2 stops
Depart: Wed Mar 8 2017 Return: Tue Mar 28 2017 Trip spans 20 days
British Airways
British Airways
LIS
2:15a
IAD
8:30p
18h 15m
1 stop
IAD
2:00p
LIS
9:05a
19h 05m
1 stop
Depart: Mon Mar 6 2017 Return: Sat Mar 25 2017 Trip spans 19 days
Turkish Airlines
Turkish Airlines
LIS
6:30a
IAD
7:05p
36h 35m
1 stop
IAD
7:00p
LIS
5:50a
34h 50m
1 stop
Depart: Thu Mar 9 2017 Return: Tue Mar 28 2017 Trip spans 19 days
British Airways
British Airways
LIS
2:15a
IAD
8:30p
18h 15m
1 stop
IAD
6:20p
LIS
1:55p
19h 35m
1 stop
Depart: Sat Mar 11 2017 Return: Sat Mar 25 2017 Trip spans 14 days
Air Canada
Air Canada
LIS
12:05a
DCA
3:59p
15h 54m
2 stops
DCA
12:45p
LIS
7:20a
18h 35m
2 stops
Depart: Tue Apr 11 2017 Return: Mon Apr 17 2017 Trip spans 7 days
British Airways
British Airways
LIS
3:25a
IAD
9:20p
17h 55m
1 stop
IAD
6:20p
LIS
9:05a
14h 45m
1 stop
Depart: Fri Feb 3 2017 Return: Wed Feb 8 2017 Trip spans 6 days
British Airways
British Airways
LIS
2:10p
IAD
2:40p
24h 30m
1 stop
IAD
1:25p
LIS
12:30p
23h 05m
1 stop
Depart: Sat Apr 8 2017 Return: Thu Apr 13 2017 Trip spans 6 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 Apr 10 2017 Return: Sun Apr 16 2017 Trip spans 7 days
British Airways
British Airways
LIS
8:50a
DCA
11:17p
14h 27m
1 stop
DCA
11:45a
LIS
12:15a
12h 30m
1 stop
Depart: Fri Apr 7 2017 Return: Sun Apr 16 2017 Trip spans 10 days
British Airways
British Airways
LIS
8:50a
DCA
11:17p
14h 27m
1 stop
DCA
11:45a
LIS
12:15a
12h 30m
1 stop
Depart: Fri Jul 28 2017 Return: Mon Aug 21 2017 Trip spans 25 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: Sun Apr 9 2017 Return: Sun Apr 16 2017 Trip spans 8 days
British Airways
British Airways
LIS
8:50a
DCA
11:17p
14h 27m
1 stop
DCA
11:45a
LIS
12:15a
12h 30m
1 stop
Depart: Sat Mar 4 2017 Return: Sat Mar 11 2017 Trip spans 8 days
British Airways
British Airways
LIS
2:15a
DCA
10:18p
20h 03m
2 stops
DCA
12:25p
LIS
9:20a
19h 55m
2 stops
Depart: Mon Jul 24 2017 Return: Mon Aug 21 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
* 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.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

Lisbon
$550
Destination

Washington
only $550
only $574