Find Cheap Flights from Portland 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 Portland to Seattle

(Round-trip)
Depart: Tue Sep 12 2017 Return: Wed Sep 20 2017 Trip spans 9 days
United
United
PWM
3:50a
SEA
2:55p
11h 05m
1 stop
SEA
8:45a
PWM
4:45p
8h 00m
1 stop
Depart: Fri Sep 8 2017 Return: Sat Sep 16 2017 Trip spans 9 days
Delta
Delta
PWM
9:33a
SEA
10:39p
13h 06m
2 stops
SEA
3:35a
PWM
4:54p
13h 19m
2 stops
Depart: Fri Sep 22 2017 Return: Thu Sep 28 2017 Trip spans 7 days
United
United
PWM
1:50a
SEA
10:15a
8h 25m
1 stop
SEA
8:45a
PWM
4:45p
8h 00m
1 stop
Depart: Sun Nov 19 2017 Return: Tue Nov 28 2017 Trip spans 10 days
United
United
PWM
12:47a
SEA
8:46a
7h 59m
1 stop
SEA
7:50a
PWM
3:44p
7h 54m
1 stop
Depart: Thu Nov 30 2017 Return: Sun Dec 3 2017 Trip spans 4 days
United
United
PWM
9:20a
SEA
6:25p
9h 05m
1 stop
SEA
5:27a
PWM
1:19p
7h 52m
1 stop
Depart: Mon Nov 20 2017 Return: Mon Nov 27 2017 Trip spans 8 days
Delta
Delta
PWM
1:45a
SEA
11:34a
9h 49m
1 stop
SEA
6:20p
PWM
5:10a
10h 50m
2 stops
Depart: Sat Sep 2 2017 Return: Mon Sep 18 2017 Trip spans 17 days
United
United
PWM
2:15a
SEA
10:59a
8h 44m
1 stop
SEA
8:20p
PWM
4:05a
7h 45m
1 stop
Depart: Thu Nov 23 2017 Return: Mon Nov 27 2017 Trip spans 5 days
Delta
Delta
PWM
4:00a
SEA
12:30p
8h 30m
1 stop
SEA
6:20p
PWM
5:10a
10h 50m
2 stops
Depart: Thu Sep 14 2017 Return: Sun Sep 17 2017 Trip spans 4 days
United
United
PWM
1:50a
SEA
10:17a
8h 27m
1 stop
SEA
6:30p
PWM
2:54a
8h 24m
1 stop
Depart: Wed Aug 2 2017 Return: Tue Aug 8 2017 Trip spans 7 days
Delta
Delta
PWM
9:42a
SEA
10:59p
13h 17m
2 stops
SEA
3:40a
PWM
4:09p
12h 29m
2 stops
Depart: Sat Aug 26 2017 Return: Sat Sep 9 2017 Trip spans 15 days
United
United
PWM
1:30a
SEA
8:07a
30h 37m
1 stop
SEA
2:42p
PWM
4:05a
13h 23m
2 stops
Depart: Fri Nov 17 2017 Return: Fri Dec 1 2017 Trip spans 15 days
Delta
Delta
PWM
6:05a
SEA
7:35p
13h 30m
2 stops
SEA
4:30a
PWM
3:35p
11h 05m
2 stops
Depart: Wed Aug 23 2017 Return: Tue Aug 29 2017 Trip spans 7 days
United
United
PWM
10:45a
SEA
10:56p
12h 11m
2 stops
SEA
2:20p
PWM
3:49a
13h 29m
2 stops
Depart: Tue Nov 21 2017 Return: Tue Nov 28 2017 Trip spans 8 days
United
United
PWM
12:47a
SEA
8:46a
7h 59m
1 stop
SEA
7:50a
PWM
3:44p
7h 54m
1 stop
Depart: Fri Sep 1 2017 Return: Sat Sep 9 2017 Trip spans 9 days
United
United
PWM
4:30p
SEA
9:00a
16h 30m
2 stops
SEA
2:42p
PWM
4:05a
13h 23m
2 stops
Depart: Mon Jul 31 2017 Return: Tue Aug 1 2017 Trip spans 2 days
Delta
Delta
PWM
1:15p
SEA
9:21p
8h 06m
1 stop
SEA
5:46a
PWM
3:32p
9h 46m
1 stop
Depart: Fri Oct 6 2017 Return: Mon Oct 9 2017 Trip spans 4 days
Delta
Delta
PWM
2:00a
SEA
10:25a
8h 25m
1 stop
SEA
8:20a
PWM
4:35p
8h 15m
1 stop
Depart: Tue Aug 1 2017 Return: Tue Aug 8 2017 Trip spans 8 days
United
United
PWM
7:25a
SEA
6:13p
10h 48m
1 stop
SEA
1:30a
PWM
4:18p
14h 48m
2 stops
Depart: Thu Aug 24 2017 Return: Sat Aug 26 2017 Trip spans 3 days
Delta
Delta
PWM
12:35p
SEA
9:10p
8h 35m
1 stop
SEA
8:35p
PWM
5:01a
8h 26m
1 stop
Depart: Sun Jul 30 2017 Return: Sat Aug 5 2017 Trip spans 7 days
United
United
PWM
5:59a
SEA
2:07p
8h 08m
1 stop
SEA
5:05p
PWM
1:51a
8h 46m
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.

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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.

If you have more questions or if you have a bad price to report to us,
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Airports
Origin

Portland
$312
Destination

Seattle
$312