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: Thu Jan 18 2018 Return: Sat Feb 10 2018 Trip spans 24 days
Multiple Airlines
Multiple Airlines
LIS
12:00a
IAD
1:55p
13h 55m
1 stop
IAD
12:00a
LIS
7:00p
19h 00m
1 stop
Depart: Thu Jan 18 2018 Return: Sat Feb 10 2018 Trip spans 24 days
Air Canada
Air Canada
LIS
12:00a
DCA
5:31p
17h 31m
2 stops
DCA
12:00a
LIS
9:35p
21h 35m
2 stops
Depart: Mon Dec 4 2017 Return: Wed Dec 6 2017 Trip spans 3 days
Turkish Airlines
Turkish Airlines
LIS
12:00a
IAD
8:10a
32h 10m
1 stop
IAD
12:00a
LIS
11:10a
35h 10m
1 stop
Depart: Mon Dec 4 2017 Return: Thu Dec 7 2017 Trip spans 4 days
British Airways
British Airways
LIS
12:00a
DCA
8:42p
20h 42m
2 stops
DCA
12:00a
LIS
7:25p
19h 25m
2 stops
Depart: Thu Nov 30 2017 Return: Wed Dec 6 2017 Trip spans 7 days
Royal Air Maroc
Royal Air Maroc
LIS
12:00a
IAD
7:50a
31h 50m
1 stop
IAD
12:00a
LIS
8:20a
32h 20m
1 stop
Depart: Mon Mar 26 2018 Return: Mon Apr 2 2018 Trip spans 8 days
Brussels Airlines
Brussels Airlines
LIS
12:00a
IAD
12:20p
12h 20m
1 stop
IAD
12:00a
LIS
1:00p
13h 00m
1 stop
Depart: Tue Mar 27 2018 Return: Mon Apr 2 2018 Trip spans 7 days
KLM
KLM
LIS
12:00a
DCA
4:32p
16h 32m
2 stops
DCA
12:00a
LIS
7:05p
19h 05m
2 stops
Depart: Thu Nov 30 2017 Return: Wed Dec 6 2017 Trip spans 7 days
Finnair
Finnair
LIS
12:00a
DCA
4:51p
16h 51m
2 stops
DCA
12:00a
LIS
2:15a
26h 15m
2 stops
Depart: Wed Nov 22 2017 Return: Thu Nov 30 2017 Trip spans 9 days
Multiple Airlines
Multiple Airlines
LIS
12:00a
DCA
2:01p
14h 01m
2 stops
DCA
12:00a
LIS
2:20p
14h 20m
2 stops
* 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
$572
Destination

Washington
only $572
only $602