Find Deals on Flights from Washington Dulles Intl 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
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 Washington Dulles Intl to Portugal

(Round-trip)
Depart: Fri Feb 17 2017 Return: Mon Mar 20 2017 Trip spans 31 days
Major Airline
Major Airline
IAD
8:25a
LIS
3:20a
18h 55m
1 stop
LIS
11:15p
IAD
5:30p
18h 15m
1 stop
Depart: Thu Feb 23 2017 Return: Thu Mar 2 2017 Trip spans 8 days
British Airways
British Airways
IAD
12:45p
LIS
8:20a
19h 35m
1 stop
LIS
1:30p
IAD
3:45p
26h 15m
1 stop
Depart: Sun Jan 15 2017 Return: Wed Jan 25 2017 Trip spans 11 days
TAP Portugal
TAP Portugal
IAD
3:45p
LIS
1:20a
9h 35m
1 stop
LIS
5:35p
IAD
8:01p
26h 26m
2 stops
Depart: Fri Jan 27 2017 Return: Sun Jan 29 2017 Trip spans 3 days
United
United
IAD
12:17p
LIS
10:10p
9h 53m
1 stop
LIS
12:05a
IAD
7:55p
19h 50m
2 stops
Depart: Tue Apr 4 2017 Return: Mon Apr 17 2017 Trip spans 14 days
Turkish Airlines
Turkish Airlines
IAD
7:05p
LIS
5:50a
34h 45m
1 stop
LIS
11:45a
IAD
8:15p
32h 30m
1 stop
Depart: Fri Feb 24 2017 Return: Fri Mar 10 2017 Trip spans 15 days
Major Airline
Major Airline
IAD
8:25a
LIS
7:30a
23h 05m
1 stop
LIS
12:45a
IAD
3:30p
14h 45m
1 stop
Depart: Sat Feb 25 2017 Return: Sat Mar 11 2017 Trip spans 15 days
British Airways
British Airways
IAD
5:30p
LIS
8:20a
14h 50m
1 stop
LIS
5:40a
IAD
4:45p
34h 05m
1 stop
Depart: Wed Mar 1 2017 Return: Tue Mar 7 2017 Trip spans 7 days
British Airways
British Airways
IAD
1:25p
LIS
12:30p
23h 05m
1 stop
LIS
1:30p
IAD
3:45p
26h 15m
1 stop
Depart: Fri Mar 3 2017 Return: Fri Mar 10 2017 Trip spans 8 days
Major Airline
Major Airline
IAD
7:40a
LIS
9:05p
13h 25m
1 stop
LIS
10:35p
IAD
2:55p
16h 20m
1 stop
Depart: Wed Dec 7 2016 Return: Tue Dec 13 2016 Trip spans 7 days
Aer Lingus
Aer Lingus
IAD
12:30p
LIS
7:50a
19h 20m
1 stop
LIS
1:30p
IAD
3:45p
26h 15m
1 stop
Depart: Sat Dec 10 2016 Return: Fri Dec 16 2016 Trip spans 7 days
$1030
Select
Royal Air Maroc
Royal Air Maroc
IAD
4:20p
LIS
2:50a
10h 30m
1 stop
LIS
9:30a
IAD
7:35p
34h 05m
1 stop
Depart: Fri Mar 10 2017 Return: Sat Mar 25 2017 Trip spans 15 days
British Airways
British Airways
IAD
5:30p
LIS
12:30p
19h 00m
1 stop
LIS
6:40a
IAD
3:45p
33h 05m
1 stop
Depart: Mon Jan 23 2017 Return: Sun Jan 29 2017 Trip spans 7 days
Major Airline
Major Airline
IAD
7:25a
LIS
8:15p
12h 50m
1 stop
LIS
10:25p
IAD
3:15p
16h 50m
1 stop
Depart: Fri Jun 2 2017 Return: Fri Jun 23 2017 Trip spans 22 days
$1160
Select
Lufthansa
Lufthansa
IAD
6:15p
LIS
1:35a
7h 20m
nonstop
LIS
8:15a
IAD
4:35p
8h 20m
nonstop
Depart: Tue Mar 14 2017 Return: Tue Mar 28 2017 Trip spans 15 days
British Airways
British Airways
IAD
3:25p
LIS
2:30p
23h 05m
1 stop
LIS
6:00p
IAD
4:45p
22h 45m
1 stop
Depart: Mon Dec 26 2016 Return: Tue Jan 10 2017 Trip spans 16 days
$1214
Select
KLM
KLM
IAD
12:45p
LIS
1:10p
24h 25m
1 stop
LIS
12:00a
IAD
3:45p
15h 45m
1 stop
Depart: Sat Dec 24 2016 Return: Tue Jan 10 2017 Trip spans 18 days
$1241
Select
Air France
Air France
IAD
1:35p
LIS
12:20p
22h 45m
1 stop
LIS
12:40a
IAD
4:10p
15h 30m
1 stop
Depart: Mon Mar 13 2017 Return: Mon Mar 20 2017 Trip spans 8 days
Major Airline
Major Airline
IAD
6:30a
LIS
11:15p
16h 45m
2 stops
LIS
10:05p
IAD
4:25p
18h 20m
2 stops
Depart: Mon Jan 9 2017 Return: Sun Jan 15 2017 Trip spans 7 days
British Airways
British Airways
IAD
12:30p
LIS
7:50a
19h 20m
1 stop
LIS
2:15a
IAD
8:30p
18h 15m
1 stop
Depart: Thu Mar 23 2017 Return: Mon Mar 27 2017 Trip spans 5 days
Major Airline
Major Airline
IAD
3:55p
LIS
6:20a
14h 25m
1 stop
LIS
3:10a
IAD
5:25p
14h 15m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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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

Washington
$442
Destination

Lisbon
$442