Find Cheap Flights from Portugal to Seattle

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 Seattle

(Round-trip)
Depart: Wed Oct 25 2017 Return: Sat Nov 4 2017 Trip spans 11 days
British Airways
British Airways
LIS
8:15a
SEA
12:49a
16h 34m
1 stop
SEA
4:30a
LIS
6:20a
26h 50m
2 stops
Depart: Mon Jul 3 2017 Return: Thu Jul 13 2017 Trip spans 11 days
$1297
Select
KLM
KLM
LIS
11:35a
SEA
2:57p
27h 22m
1 stop
SEA
3:40a
LIS
10:30p
18h 50m
1 stop
Depart: Tue Jul 4 2017 Return: Thu Jul 13 2017 Trip spans 10 days
$1297
Select
KLM
KLM
LIS
11:35a
SEA
2:57p
27h 22m
1 stop
SEA
6:09a
LIS
10:30p
16h 21m
1 stop
Depart: Wed Jul 5 2017 Return: Thu Jul 13 2017 Trip spans 9 days
$1297
Select
KLM
KLM
LIS
1:00a
SEA
2:57p
13h 57m
1 stop
SEA
3:40a
LIS
10:30p
18h 50m
1 stop
Depart: Thu Jul 6 2017 Return: Thu Jul 13 2017 Trip spans 8 days
$1297
Select
KLM
KLM
LIS
11:35a
SEA
2:57p
27h 22m
1 stop
SEA
6:09a
LIS
10:30p
16h 21m
1 stop
Depart: Fri Jul 7 2017 Return: Thu Jul 13 2017 Trip spans 7 days
$1297
Select
KLM
KLM
LIS
1:00a
SEA
2:57p
13h 57m
1 stop
SEA
3:40a
LIS
10:30p
18h 50m
1 stop
Depart: Sat Jul 8 2017 Return: Thu Jul 13 2017 Trip spans 6 days
$1302
Select
KLM
KLM
LIS
1:00a
SEA
1:31a
24h 31m
2 stops
SEA
3:40a
LIS
10:30p
18h 50m
1 stop
Depart: Sun Jul 9 2017 Return: Mon Jul 17 2017 Trip spans 9 days
$1364
Select
KLM
KLM
LIS
1:00a
SEA
6:27p
17h 27m
2 stops
SEA
7:00p
LIS
10:25p
27h 25m
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.

We compile tonnes of data for you
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,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

Lisbon
$796
Destination

Seattle
$796