Find Cheap Flights from Seattle 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 Seattle to Portugal

(Round-trip)
Depart: Sun Aug 27 2017 Return: Tue Sep 12 2017 Trip spans 17 days
$1100
Select
Air Canada
Air Canada
SEA
12:00a
LIS
8:40p
20h 40m
1 stop
LIS
12:00a
SEA
4:51p
16h 51m
1 stop
Depart: Wed Aug 30 2017 Return: Tue Sep 12 2017 Trip spans 14 days
$1100
Select
United
United
SEA
12:00a
LIS
8:40p
20h 40m
1 stop
LIS
12:00a
SEA
4:45a
28h 45m
2 stops
Depart: Tue Jul 4 2017 Return: Wed Jul 19 2017 Trip spans 16 days
$1347
Select
Multiple Airlines
Multiple Airlines
SEA
12:00a
LIS
5:30p
17h 30m
1 stop
LIS
12:00a
SEA
5:15p
17h 15m
1 stop
Depart: Thu Jun 29 2017 Return: Tue Jul 4 2017 Trip spans 6 days
$1740
Select
Major Airline
Major Airline
SEA
12:00a
LIS
2:23a
2h 23m
nonstop
LIS
12:00a
SEA
6:23p
18h 23m
nonstop
Depart: Mon Aug 28 2017 Return: Tue Sep 12 2017 Trip spans 16 days
$1100
Select
Air Canada
Air Canada
SEA
12:00a
LIS
8:40p
20h 40m
1 stop
LIS
12:00a
SEA
4:51p
16h 51m
1 stop
Depart: Tue Aug 29 2017 Return: Tue Sep 12 2017 Trip spans 15 days
$1101
Select
United
United
SEA
12:00a
LIS
3:20p
15h 20m
1 stop
LIS
12:00a
SEA
4:51p
16h 51m
1 stop
Depart: Mon Aug 28 2017 Return: Wed Sep 13 2017 Trip spans 17 days
$1107
Select
United
United
SEA
12:00a
LIS
8:40p
20h 40m
1 stop
LIS
12:00a
SEA
8:23p
20h 23m
1 stop
Depart: Sun Aug 27 2017 Return: Mon Sep 11 2017 Trip spans 16 days
$1125
Select
Air Canada
Air Canada
SEA
12:00a
LIS
4:10p
16h 10m
1 stop
LIS
12:00a
SEA
4:51p
16h 51m
1 stop
Depart: Wed Aug 30 2017 Return: Wed Sep 13 2017 Trip spans 15 days
$1107
Select
United
United
SEA
12:00a
LIS
4:10p
16h 10m
1 stop
LIS
12:00a
SEA
4:05p
16h 05m
1 stop
Depart: Mon Aug 28 2017 Return: Mon Sep 11 2017 Trip spans 15 days
$1125
Select
Air Canada
Air Canada
SEA
12:00a
LIS
8:40p
20h 40m
1 stop
LIS
12:00a
SEA
4:51p
16h 51m
1 stop
Depart: Wed Jun 28 2017 Return: Wed Jul 26 2017 Trip spans 29 days
$2732
Select
Air France
Air France
SEA
12:00a
LIS
4:20p
16h 20m
1 stop
LIS
12:00a
SEA
6:15p
18h 15m
1 stop
Depart: Mon Jun 26 2017 Return: Wed Jul 26 2017 Trip spans 31 days
$2755
Select
TAP Portugal
TAP Portugal
SEA
12:00a
LIS
1:51p
13h 51m
1 stop
LIS
12:00a
SEA
8:23p
20h 23m
1 stop
Depart: Sat Jun 24 2017 Return: Sat Jul 29 2017 Trip spans 36 days
$2791
Select
Turkish Airlines
Turkish Airlines
SEA
12:00a
LIS
12:24p
36h 24m
2 stops
LIS
12:00a
SEA
7:37p
43h 37m
2 stops
Depart: Tue Aug 29 2017 Return: Wed Sep 13 2017 Trip spans 16 days
$1108
Select
United
United
SEA
12:00a
LIS
6:20p
18h 20m
1 stop
LIS
12:00a
SEA
4:51p
16h 51m
1 stop
Depart: Sun Aug 27 2017 Return: Sat Sep 16 2017 Trip spans 21 days
$1130
Select
Air Canada
Air Canada
SEA
12:00a
LIS
8:40p
20h 40m
1 stop
LIS
12:00a
SEA
4:51p
16h 51m
1 stop
Depart: Wed Aug 30 2017 Return: Mon Sep 18 2017 Trip spans 20 days
$1108
Select
United
United
SEA
12:00a
LIS
3:20p
15h 20m
1 stop
LIS
12:00a
SEA
4:51p
16h 51m
1 stop
Depart: Mon Aug 28 2017 Return: Sat Sep 16 2017 Trip spans 20 days
$1130
Select
Air Canada
Air Canada
SEA
12:00a
LIS
4:10p
16h 10m
1 stop
LIS
12:00a
SEA
4:51p
16h 51m
1 stop
Depart: Mon Jul 3 2017 Return: Thu Jul 20 2017 Trip spans 18 days
$1739
Select
Multiple Airlines
Multiple Airlines
SEA
12:00a
LIS
9:51p
21h 51m
1 stop
LIS
12:00a
SEA
7:33a
31h 33m
1 stop
Depart: Thu Jun 29 2017 Return: Wed Jul 5 2017 Trip spans 7 days
$1744
Select
Major Airline
Major Airline
SEA
12:00a
LIS
2:23a
2h 23m
nonstop
LIS
12:00a
SEA
6:23p
18h 23m
nonstop
Depart: Wed Aug 30 2017 Return: Mon Sep 11 2017 Trip spans 13 days
$1125
Select
United
United
SEA
12:00a
LIS
4:10p
16h 10m
1 stop
LIS
12:00a
SEA
4:51p
16h 51m
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

Seattle
$1100
Destination

Lisbon
$1100