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 Oct 13 2017 Return: Tue Oct 24 2017 Trip spans 12 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: Thu Oct 19 2017 Return: Wed Nov 1 2017 Trip spans 14 days
British Airways
British Airways
LIS
6:20p
IAD
4:35p
22h 15m
1 stop
IAD
3:25p
LIS
2:30p
23h 05m
1 stop
Depart: Sun Oct 15 2017 Return: Mon Oct 30 2017 Trip spans 16 days
Finnair
Finnair
LIS
3:20a
DCA
11:26p
20h 06m
2 stops
DCA
10:55a
LIS
2:30p
27h 35m
2 stops
Depart: Fri Sep 1 2017 Return: Wed Sep 6 2017 Trip spans 6 days
KLM
KLM
LIS
1:00a
IAD
7:45p
18h 45m
2 stops
IAD
5:05p
LIS
1:50p
20h 45m
2 stops
Depart: Sun Jun 4 2017 Return: Sat Jun 17 2017 Trip spans 14 days
Major Airline
Major Airline
LIS
2:45a
IAD
3:03p
12h 18m
nonstop
IAD
9:50a
LIS
10:50p
13h 00m
nonstop
Depart: Wed Sep 20 2017 Return: Wed Sep 27 2017 Trip spans 8 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 Oct 16 2017 Return: Sun Oct 29 2017 Trip spans 14 days
Turkish Airlines
Turkish Airlines
LIS
7:30a
IAD
8:10p
36h 40m
1 stop
IAD
7:55p
LIS
2:35a
30h 40m
1 stop
Depart: Tue Oct 17 2017 Return: Sun Oct 29 2017 Trip spans 13 days
Turkish Airlines
Turkish Airlines
LIS
7:30a
IAD
8:10p
36h 40m
1 stop
IAD
7:55p
LIS
2:35a
30h 40m
1 stop
Depart: Wed Oct 18 2017 Return: Sun Oct 29 2017 Trip spans 12 days
Turkish Airlines
Turkish Airlines
LIS
11:45a
IAD
8:10p
32h 25m
1 stop
IAD
7:55p
LIS
7:20a
35h 25m
1 stop
Depart: Tue Jun 13 2017 Return: Tue Jun 27 2017 Trip spans 15 days
British Airways
British Airways
LIS
8:15a
DCA
11:18p
15h 03m
1 stop
DCA
3:35p
LIS
9:05a
17h 30m
2 stops
Depart: Fri Oct 20 2017 Return: Sun Oct 29 2017 Trip spans 10 days
Turkish Airlines
Turkish Airlines
LIS
7:30a
IAD
8:10p
36h 40m
1 stop
IAD
7:55p
LIS
2:35a
30h 40m
1 stop
Depart: Wed Aug 16 2017 Return: Wed Aug 30 2017 Trip spans 15 days
British Airways
British Airways
LIS
7:55a
DCA
11:23p
15h 28m
1 stop
DCA
11:45a
LIS
2:10p
26h 25m
2 stops
Depart: Sat Oct 21 2017 Return: Sun Oct 29 2017 Trip spans 9 days
Turkish Airlines
Turkish Airlines
LIS
7:30a
IAD
8:10p
36h 40m
1 stop
IAD
7:55p
LIS
7:20a
35h 25m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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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
$595
Destination

Washington
only $595
only $691