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
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: Thu Apr 20 2017 Return: Tue Apr 25 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: Mon Apr 24 2017 Return: Tue May 2 2017 Trip spans 9 days
Major Airline
Major Airline
IAD
9:30a
OPO
9:40p
12h 10m
1 stop
OPO
4:05a
IAD
4:55p
12h 50m
1 stop
Depart: Wed May 31 2017 Return: Sun Jun 11 2017 Trip spans 12 days
British Airways
British Airways
IAD
6:20p
LIS
9:05a
14h 45m
1 stop
LIS
6:20p
IAD
4:35p
22h 15m
1 stop
Depart: Tue Mar 28 2017 Return: Mon Apr 3 2017 Trip spans 7 days
Aer Lingus
Aer Lingus
IAD
1:15p
LIS
1:35a
12h 20m
1 stop
LIS
6:20p
IAD
4:35p
22h 15m
1 stop
Depart: Thu Jun 22 2017 Return: Sun Jun 25 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 Mar 15 2017 Return: Sun Mar 19 2017 Trip spans 5 days
TAP Portugal
TAP Portugal
IAD
4:36p
PDL
4:20p
23h 44m
2 stops
PDL
9:15a
IAD
8:24a
47h 09m
2 stops
Depart: Fri May 19 2017 Return: Sat Jun 3 2017 Trip spans 16 days
SAS
SAS
IAD
1:15p
FAO
9:00a
19h 45m
1 stop
FAO
2:50p
IAD
4:00p
25h 10m
1 stop
Depart: Tue Apr 25 2017 Return: Tue May 2 2017 Trip spans 8 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: Tue Apr 18 2017 Return: Tue Apr 25 2017 Trip spans 8 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: Thu Jul 27 2017 Return: Mon Jul 31 2017 Trip spans 5 days
$1254
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: Tue Mar 21 2017 Return: Tue Apr 4 2017 Trip spans 15 days
Major Airline
Major Airline
IAD
12:36p
FNC
8:45a
20h 09m
2 stops
FNC
9:50a
IAD
3:59p
30h 09m
2 stops
Depart: Sun Apr 30 2017 Return: Sat May 6 2017 Trip spans 7 days
Turkish Airlines
Turkish Airlines
IAD
7:00p
OPO
2:20a
31h 20m
1 stop
OPO
11:35a
IAD
8:10p
32h 35m
1 stop
Depart: Tue Jul 11 2017 Return: Tue Aug 1 2017 Trip spans 22 days
British Airways
British Airways
IAD
6:20p
LIS
9:05a
14h 45m
1 stop
LIS
6:20p
IAD
4:35p
22h 15m
1 stop
Depart: Mon Mar 27 2017 Return: Mon Apr 3 2017 Trip spans 8 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: Thu Aug 31 2017 Return: Sun Sep 10 2017 Trip spans 11 days
Major Airline
Major Airline
IAD
6:45a
LIS
4:40a
21h 55m
2 stops
LIS
7:35a
IAD
9:50a
26h 15m
2 stops
Depart: Wed Mar 29 2017 Return: Mon Apr 3 2017 Trip spans 6 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: Wed Apr 26 2017 Return: Tue May 2 2017 Trip spans 7 days
Turkish Airlines
Turkish Airlines
IAD
7:00p
OPO
2:20a
31h 20m
1 stop
OPO
8:15a
IAD
8:10p
35h 55m
1 stop
Depart: Wed Aug 23 2017 Return: Tue Sep 5 2017 Trip spans 14 days
British Airways
British Airways
IAD
6:20p
LIS
9:05a
14h 45m
1 stop
LIS
6:20p
IAD
4:35p
22h 15m
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
4:25p
14h 20m
1 stop
Depart: Thu Jun 1 2017 Return: Sun Jun 4 2017 Trip spans 4 days
Major Airline
Major Airline
IAD
6:45a
LIS
1:55a
19h 10m
2 stops
LIS
11:40a
IAD
9:50a
22h 10m
2 stops
* 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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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
$552
Destination

Porto
$558
Lisbon
$552
Funchal
$628
Faro
$978
Ponta Delgada (Açores)
$973