Find Deals on 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: Wed Apr 19 2017 Return: Mon Apr 24 2017 Trip spans 6 days
Major Airline
Major Airline
IAD
4:40a
PDL
5:45p
13h 05m
1 stop
PDL
9:15a
IAD
9:53a
24h 38m
1 stop
Depart: Sun Mar 12 2017 Return: Thu Mar 23 2017 Trip spans 12 days
Turkish Airlines
Turkish Airlines
IAD
7:55p
LIS
7:20a
35h 25m
1 stop
LIS
12:15p
IAD
8:05p
31h 50m
1 stop
Depart: Sun May 28 2017 Return: Sun Jun 4 2017 Trip spans 8 days
British Airways
British Airways
IAD
1:15p
LIS
12:40p
23h 25m
1 stop
LIS
2:50p
IAD
1:45p
22h 55m
1 stop
Depart: Sat May 27 2017 Return: Mon May 29 2017 Trip spans 3 days
Lufthansa
Lufthansa
IAD
6:20p
LIS
1:35a
7h 15m
nonstop
LIS
2:05a
IAD
8:00p
17h 55m
1 stop
Depart: Mon May 29 2017 Return: Wed Jun 14 2017 Trip spans 17 days
Aer Lingus
Aer Lingus
IAD
1:15p
LIS
12:40p
23h 25m
1 stop
LIS
6:20p
IAD
4:35p
22h 15m
1 stop
Depart: Sun May 14 2017 Return: Thu Jun 1 2017 Trip spans 19 days
TAP Portugal
TAP Portugal
IAD
4:18a
LIS
8:50p
16h 32m
1 stop
LIS
1:30p
IAD
9:50a
20h 20m
1 stop
Depart: Thu Jun 15 2017 Return: Wed Jun 21 2017 Trip spans 7 days
$1034
Select
Royal Air Maroc
Royal Air Maroc
IAD
6:00p
LIS
7:10a
13h 10m
1 stop
LIS
1:10p
IAD
9:15p
32h 05m
1 stop
Depart: Wed May 31 2017 Return: Wed Jun 7 2017 Trip spans 8 days
Major Airline
Major Airline
IAD
2:20p
PDL
11:20a
21h 00m
1 stop
PDL
9:55a
IAD
11:30a
25h 35m
1 stop
Depart: Tue Apr 4 2017 Return: Sun Apr 9 2017 Trip spans 6 days
Turkish Airlines
Turkish Airlines
IAD
7:00p
LIS
5:50a
34h 50m
1 stop
LIS
7:30a
IAD
8:10p
36h 40m
1 stop
Depart: Sun Jul 9 2017 Return: Mon Jul 17 2017 Trip spans 9 days
$1136
Select
SAS
SAS
IAD
1:15p
FAO
9:35a
20h 20m
2 stops
FAO
3:35p
IAD
4:00p
24h 25m
2 stops
Depart: Tue Apr 25 2017 Return: Mon May 1 2017 Trip spans 7 days
Major Airline
Major Airline
DCA
10:00p
PDL
5:45p
19h 45m
1 stop
PDL
9:15a
DCA
3:38a
18h 23m
1 stop
Depart: Mon Mar 6 2017 Return: Mon Mar 13 2017 Trip spans 7 days
Turkish Airlines
Turkish Airlines
IAD
5:55p
LIS
5:20a
35h 25m
1 stop
LIS
7:30a
IAD
8:05p
36h 35m
1 stop
Depart: Mon Apr 3 2017 Return: Sun Apr 9 2017 Trip spans 7 days
Turkish Airlines
Turkish Airlines
IAD
7:00p
LIS
1:30a
30h 30m
1 stop
LIS
11:45a
IAD
8:10p
32h 25m
1 stop
Depart: Tue Apr 11 2017 Return: Sun Apr 16 2017 Trip spans 6 days
$1347
Select
Air Canada
Air Canada
DCA
4:00p
LIS
7:20a
15h 20m
2 stops
LIS
3:40a
DCA
7:00p
15h 20m
2 stops
Depart: Tue May 30 2017 Return: Thu Jun 1 2017 Trip spans 3 days
Major Airline
Major Airline
DCA
2:40a
PDL
5:45p
15h 05m
1 stop
PDL
9:15a
DCA
6:04a
20h 49m
1 stop
Depart: Wed Aug 2 2017 Return: Wed Aug 30 2017 Trip spans 29 days
British Airways
British Airways
IAD
6:20p
LIS
2:10p
19h 50m
1 stop
LIS
6:20p
IAD
4:35p
22h 15m
1 stop
Depart: Wed Mar 29 2017 Return: Tue Apr 4 2017 Trip spans 7 days
Turkish Airlines
Turkish Airlines
IAD
7:00p
LIS
1:30a
30h 30m
1 stop
LIS
11:45a
IAD
8:10p
32h 25m
1 stop
Depart: Fri May 26 2017 Return: Mon May 29 2017 Trip spans 4 days
Lufthansa
Lufthansa
IAD
6:30p
LIS
4:35a
34h 05m
1 stop
LIS
8:15a
IAD
4:30p
8h 15m
nonstop
Depart: Wed Aug 23 2017 Return: Tue Sep 5 2017 Trip spans 14 days
British Airways
British Airways
IAD
6:20p
LIS
2:10p
19h 50m
1 stop
LIS
6:20p
IAD
4:35p
22h 15m
1 stop
Depart: Wed Mar 8 2017 Return: Tue Mar 14 2017 Trip spans 6 days
Turkish Airlines
Turkish Airlines
IAD
5:55p
LIS
5:20a
35h 25m
1 stop
LIS
7:30a
IAD
8:05p
36h 35m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

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,
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Airports
Origin

Washington
only $543
only $550
Destination

Lisbon
$554
Faro
$1136
Ponta Delgada (Açores)
$543