Find Cheap Flights from Seattle/Tacoma 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 Seattle/Tacoma Intl 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: Mon Jul 3 2017 Return: Wed Jul 19 2017 Trip spans 17 days
$1231
Select
Multiple Airlines
Multiple Airlines
SEA
12:00a
LIS
2:31a
26h 31m
2 stops
LIS
12:00a
SEA
12:04p
36h 04m
2 stops
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 Jul 3 2017 Return: Tue Jul 18 2017 Trip spans 16 days
$1776
Select
TAP Portugal
TAP Portugal
SEA
12:00a
LIS
9:51p
21h 51m
1 stop
LIS
12:00a
SEA
8:23p
20h 23m
1 stop
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: Mon Jul 3 2017 Return: Fri Jul 14 2017 Trip spans 12 days
$1279
Select
Multiple Airlines
Multiple Airlines
SEA
12:00a
LIS
2:31a
26h 31m
2 stops
LIS
12:00a
SEA
3:19p
39h 19m
2 stops
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: 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: 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: 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: 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: Tue Jul 4 2017 Return: Fri Jul 14 2017 Trip spans 11 days
$1776
Select
TAP Portugal
TAP Portugal
SEA
12:00a
LIS
2:50p
14h 50m
1 stop
LIS
12:00a
SEA
8:23p
20h 23m
1 stop
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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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