Find Cheap Flights from Washington to Portugal

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 Washington to Portugal

(Round-trip)
Depart: Mon Dec 4 2017 Return: Wed Dec 13 2017 Trip spans 10 days
British Airways
British Airways
IAD
12:00a
LIS
11:25a
11h 25m
1 stop
LIS
12:00a
IAD
6:15p
18h 15m
1 stop
Depart: Mon Mar 12 2018 Return: Wed Mar 21 2018 Trip spans 10 days
Multiple Airlines
Multiple Airlines
IAD
12:00a
LIS
11:25a
11h 25m
1 stop
LIS
12:00a
IAD
6:15p
18h 15m
1 stop
Depart: Mon Feb 5 2018 Return: Sun Feb 18 2018 Trip spans 14 days
Aeroflot
Aeroflot
IAD
12:00a
LIS
3:25a
27h 25m
1 stop
LIS
12:00a
IAD
10:10a
34h 10m
1 stop
Depart: Thu Oct 26 2017 Return: Sun Oct 29 2017 Trip spans 4 days
Royal Air Maroc
Royal Air Maroc
IAD
12:00a
LIS
1:15p
13h 15m
1 stop
LIS
12:00a
IAD
7:50a
31h 50m
1 stop
Depart: Mon Apr 30 2018 Return: Wed May 9 2018 Trip spans 10 days
TAP AIR PORTUGAL
TAP AIR PORTUGAL
DCA
12:00a
LIS
10:14a
10h 14m
1 stop
LIS
12:00a
DCA
12:05p
12h 05m
1 stop
Depart: Fri Oct 27 2017 Return: Fri Nov 3 2017 Trip spans 8 days
Turkish Airlines
Turkish Airlines
IAD
12:00a
LIS
12:05p
36h 05m
1 stop
LIS
12:00a
IAD
12:50p
36h 50m
1 stop
Depart: Thu Dec 28 2017 Return: Fri Jan 5 2018 Trip spans 9 days
Air Canada
Air Canada
DCA
12:00a
LIS
11:20a
11h 20m
1 stop
LIS
12:00a
DCA
2:26p
14h 26m
1 stop
Depart: Thu Nov 23 2017 Return: Mon Dec 4 2017 Trip spans 12 days
Delta
Delta
DCA
12:00a
OPO
4:50p
16h 50m
2 stops
OPO
12:00a
DCA
4:16p
16h 16m
2 stops
Depart: Wed Dec 6 2017 Return: Wed Dec 13 2017 Trip spans 8 days
British Airways
British Airways
IAD
12:00a
LIS
11:25a
11h 25m
1 stop
LIS
12:00a
IAD
6:15p
18h 15m
1 stop
Depart: Wed Dec 6 2017 Return: Wed Dec 13 2017 Trip spans 8 days
Multiple Airlines
Multiple Airlines
IAD
12:00a
LIS
11:25a
11h 25m
1 stop
LIS
12:00a
IAD
2:50p
14h 50m
1 stop
Depart: Mon Apr 9 2018 Return: Wed Apr 18 2018 Trip spans 10 days
Multiple Airlines
Multiple Airlines
IAD
12:00a
LIS
7:05p
19h 05m
1 stop
LIS
12:00a
IAD
10:10p
22h 10m
1 stop
Depart: Sat Feb 10 2018 Return: Thu Feb 15 2018 Trip spans 6 days
British Airways
British Airways
DCA
12:00a
LIS
9:00p
21h 00m
2 stops
LIS
12:00a
DCA
7:08p
19h 08m
2 stops
Depart: Mon Jan 15 2018 Return: Sun Feb 18 2018 Trip spans 35 days
Aeroflot
Aeroflot
IAD
12:00a
LIS
3:25a
27h 25m
1 stop
LIS
12:00a
IAD
10:10a
34h 10m
1 stop
Depart: Thu Nov 30 2017 Return: Fri Dec 8 2017 Trip spans 9 days
Multiple Airlines
Multiple Airlines
IAD
12:00a
LIS
7:00p
19h 00m
1 stop
LIS
12:00a
IAD
2:15a
26h 15m
1 stop
Depart: Fri Nov 17 2017 Return: Sat Nov 25 2017 Trip spans 9 days
Royal Air Maroc
Royal Air Maroc
IAD
12:00a
LIS
8:20a
32h 20m
1 stop
LIS
12:00a
IAD
7:50a
31h 50m
1 stop
Depart: Mon Dec 25 2017 Return: Mon Jan 1 2018 Trip spans 8 days
$1640
Select
Iberia
Iberia
DCA
12:00a
LIS
5:35p
17h 35m
2 stops
LIS
12:00a
DCA
7:19a
31h 19m
2 stops
Depart: Wed Mar 14 2018 Return: Tue Mar 20 2018 Trip spans 7 days
Multiple Airlines
Multiple Airlines
IAD
12:00a
LIS
2:15p
14h 15m
1 stop
LIS
12:00a
IAD
10:05a
34h 05m
1 stop
Depart: Mon Jan 8 2018 Return: Wed Jan 17 2018 Trip spans 10 days
TAP AIR PORTUGAL
TAP AIR PORTUGAL
DCA
12:00a
FAO
3:01p
15h 01m
2 stops
FAO
12:00a
DCA
5:38a
29h 38m
2 stops
Depart: Wed Apr 11 2018 Return: Sun Apr 15 2018 Trip spans 5 days
Multiple Airlines
Multiple Airlines
IAD
12:00a
LIS
6:55a
30h 55m
1 stop
LIS
12:00a
IAD
10:10p
22h 10m
1 stop
Depart: Tue Apr 3 2018 Return: Tue Apr 10 2018 Trip spans 8 days
TAP AIR PORTUGAL
TAP AIR PORTUGAL
DCA
12:00a
LIS
10:14a
10h 14m
1 stop
LIS
12:00a
DCA
12:05p
12h 05m
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

Washington
only $569
only $669
Destination

Porto
$995
Lisbon
$569
Faro
$900