Find Cheap 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: Fri Sep 1 2017 Return: Wed Sep 6 2017 Trip spans 6 days
United
United
LIS
12:00a
IAD
1:07p
13h 07m
1 stop
IAD
12:00a
LIS
7:15a
7h 15m
nonstop
Depart: Fri Sep 1 2017 Return: Wed Sep 6 2017 Trip spans 6 days
Delta
Delta
LIS
12:00a
IAD
6:05p
18h 05m
1 stop
IAD
12:00a
LIS
12:50p
12h 50m
1 stop
Depart: Tue Aug 1 2017 Return: Tue Aug 29 2017 Trip spans 29 days
Multiple Airlines
Multiple Airlines
LIS
12:00a
IAD
8:39a
32h 39m
1 stop
IAD
12:00a
LIS
6:25p
18h 25m
1 stop
Depart: Sat Aug 19 2017 Return: Wed Aug 30 2017 Trip spans 12 days
$1017
Select
Major Airline
Major Airline
LIS
12:00a
IAD
11:44a
11h 44m
nonstop
IAD
12:00a
LIS
12:25p
12h 25m
nonstop
Depart: Wed Aug 16 2017 Return: Thu Sep 14 2017 Trip spans 30 days
Delta
Delta
LIS
12:00a
IAD
6:05p
18h 05m
1 stop
IAD
12:00a
LIS
6:25p
18h 25m
1 stop
Depart: Sat Aug 5 2017 Return: Sat Sep 2 2017 Trip spans 29 days
Multiple Airlines
Multiple Airlines
LIS
12:00a
IAD
1:11p
13h 11m
1 stop
IAD
12:00a
LIS
7:25p
19h 25m
1 stop
Depart: Fri Aug 11 2017 Return: Fri Sep 1 2017 Trip spans 22 days
Delta
Delta
LIS
12:00a
IAD
6:05p
18h 05m
1 stop
IAD
12:00a
LIS
12:50p
12h 50m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Here's why:

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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.

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Airports
Origin

Lisbon
$804
Destination

Washington
$804
Airlines Airline reviews

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

Overall
7.4
Boarding
7.4
Crew
8.0
Comfort
7.4
Food
7.7
Entertainment
6.9