Find Deals on Flights from Portugal to Washington Dulles Intl

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 Dulles Intl

(Round-trip)
Depart: Thu May 11 2017 Return: Thu Jun 8 2017 Trip spans 29 days
KLM
KLM
LIS
1:00a
IAD
4:35p
15h 35m
1 stop
IAD
6:00a
LIS
1:30a
19h 30m
1 stop
Depart: Mon Jun 5 2017 Return: Sun Jun 11 2017 Trip spans 7 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: Tue Jun 6 2017 Return: Sun Jun 11 2017 Trip spans 6 days
Air France
Air France
LIS
8:00a
IAD
10:54p
14h 54m
1 stop
IAD
12:20p
LIS
1:30a
13h 10m
1 stop
Depart: Tue Mar 21 2017 Return: Tue Apr 11 2017 Trip spans 22 days
Delta
Delta
LIS
1:00a
IAD
4:45p
15h 45m
1 stop
IAD
2:10p
LIS
2:20a
12h 10m
1 stop
Depart: Sat Mar 18 2017 Return: Sun Apr 9 2017 Trip spans 23 days
United
United
LIS
4:10a
IAD
3:00p
34h 50m
1 stop
IAD
2:20p
LIS
12:20p
22h 00m
1 stop
Depart: Sun May 28 2017 Return: Mon Jun 19 2017 Trip spans 23 days
British Airways
British Airways
LIS
6:20p
IAD
4:35p
22h 15m
1 stop
IAD
2:00p
LIS
2:10p
24h 10m
1 stop
Depart: Sun Mar 19 2017 Return: Sat Apr 8 2017 Trip spans 21 days
Lufthansa
Lufthansa
LIS
1:05a
IAD
9:15p
20h 10m
1 stop
IAD
1:30p
LIS
12:30p
23h 00m
1 stop
Depart: Fri May 12 2017 Return: Sat Jun 3 2017 Trip spans 23 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: Wed Jun 7 2017 Return: Sun Jun 11 2017 Trip spans 5 days
Air France
Air France
LIS
8:00a
IAD
10:54p
14h 54m
1 stop
IAD
12:20p
LIS
1:30a
13h 10m
1 stop
Depart: Wed Mar 22 2017 Return: Tue Apr 11 2017 Trip spans 21 days
Delta
Delta
LIS
1:00a
IAD
4:45p
15h 45m
1 stop
IAD
2:10p
LIS
5:55a
15h 45m
1 stop
Depart: Sat Jun 3 2017 Return: Fri Jun 9 2017 Trip spans 7 days
Turkish Airlines
Turkish Airlines
LIS
7:30a
IAD
8:10p
36h 40m
1 stop
IAD
7:00p
LIS
1:30a
30h 30m
1 stop
Depart: Thu Mar 23 2017 Return: Tue Apr 11 2017 Trip spans 20 days
Delta
Delta
LIS
1:00a
IAD
4:45p
15h 45m
1 stop
IAD
2:10p
LIS
5:55a
15h 45m
1 stop
Depart: Sat Mar 11 2017 Return: Fri Mar 17 2017 Trip spans 6 days
United
United
LIS
12:05a
IAD
8:55p
20h 50m
2 stops
IAD
7:10p
LIS
1:10p
18h 00m
1 stop
Depart: Sun Jun 4 2017 Return: Fri Jun 9 2017 Trip spans 6 days
Turkish Airlines
Turkish Airlines
LIS
7:30a
IAD
8:10p
36h 40m
1 stop
IAD
7:00p
LIS
1:30a
30h 30m
1 stop
Depart: Mon Mar 20 2017 Return: Tue Apr 11 2017 Trip spans 23 days
Delta
Delta
LIS
7:55a
IAD
5:10p
33h 15m
1 stop
IAD
5:05p
LIS
8:40a
15h 35m
1 stop
Depart: Thu Jun 8 2017 Return: Tue Jun 13 2017 Trip spans 6 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: Fri Mar 24 2017 Return: Tue Apr 11 2017 Trip spans 19 days
Delta
Delta
LIS
3:30a
IAD
11:09a
31h 39m
2 stops
IAD
2:10p
LIS
5:55a
15h 45m
1 stop
Depart: Fri Jun 9 2017 Return: Tue Jun 13 2017 Trip spans 5 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: Sat Jun 10 2017 Return: Tue Jun 13 2017 Trip spans 4 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: Sun Jun 11 2017 Return: Tue Jun 13 2017 Trip spans 3 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
* 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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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

Lisbon
$546
Destination

Washington
$546
Airlines Airline reviews

8 travelers who booked a flight from Lisbon to Washington rated their chosen airlines with an average of 7.5.

Overall
7.5
Boarding
7.5
Crew
8.0
Comfort
7.5
Food
7.8
Entertainment
7.0