Find Cheap Flights from Pittsburgh 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.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Pittsburgh to Seattle

(Round-trip)
Depart: Wed Sep 13 2017 Return: Mon Sep 18 2017 Trip spans 6 days
Spirit Airlines
Spirit Airlines
PIT
4:35p
SEA
1:55p
21h 20m
1 stop
SEA
11:42a
PIT
11:44p
12h 02m
1 stop
Depart: Sun Jul 9 2017 Return: Tue Jul 11 2017 Trip spans 3 days
Major Airline
Major Airline
PIT
12:00a
SEA
1:10p
13h 10m
3 stops
SEA
11:05a
PIT
8:39a
21h 34m
3 stops
Depart: Thu Jul 13 2017 Return: Sun Jul 16 2017 Trip spans 4 days
United
United
PIT
1:55a
SEA
8:42a
6h 47m
1 stop
SEA
1:15a
PIT
8:35a
7h 20m
1 stop
Depart: Sat Sep 16 2017 Return: Sat Oct 14 2017 Trip spans 29 days
American Airlines
American Airlines
PIT
2:30p
SEA
9:39p
7h 09m
1 stop
SEA
10:45a
PIT
5:10p
6h 25m
1 stop
Depart: Fri Oct 13 2017 Return: Mon Oct 16 2017 Trip spans 4 days
Delta
Delta
PIT
2:40a
SEA
12:04p
9h 24m
1 stop
SEA
6:55p
PIT
2:42a
7h 47m
1 stop
Depart: Sun Sep 10 2017 Return: Wed Sep 13 2017 Trip spans 4 days
Frontier
Frontier
PIT
4:45a
SEA
5:02p
12h 17m
1 stop
SEA
6:55a
PIT
1:41p
6h 46m
1 stop
Depart: Mon Aug 28 2017 Return: Wed Sep 6 2017 Trip spans 10 days
Spirit Airlines
Spirit Airlines
PIT
4:49p
SEA
1:17p
20h 28m
1 stop
SEA
11:15a
PIT
11:40p
12h 25m
1 stop
Depart: Tue Sep 5 2017 Return: Tue Sep 19 2017 Trip spans 15 days
Spirit Airlines
Spirit Airlines
PIT
4:49p
SEA
1:17p
20h 28m
1 stop
SEA
11:42a
PIT
11:44p
12h 02m
1 stop
Depart: Fri Jul 14 2017 Return: Sun Jul 16 2017 Trip spans 3 days
United
United
PIT
10:25a
SEA
6:40p
8h 15m
1 stop
SEA
5:11p
PIT
12:41a
7h 30m
1 stop
Depart: Sat Sep 23 2017 Return: Sat Sep 30 2017 Trip spans 8 days
American Airlines
American Airlines
PIT
3:30a
SEA
1:29p
9h 59m
1 stop
SEA
3:45a
PIT
11:15a
7h 30m
1 stop
Depart: Sat Nov 4 2017 Return: Mon Nov 6 2017 Trip spans 3 days
Delta
Delta
PIT
9:30a
SEA
6:09p
8h 39m
1 stop
SEA
6:20p
PIT
12:59a
6h 39m
1 stop
Depart: Sat Aug 19 2017 Return: Tue Aug 22 2017 Trip spans 4 days
Frontier
Frontier
PIT
5:05a
SEA
8:57a
27h 52m
1 stop
SEA
6:50a
PIT
12:36p
29h 46m
1 stop
Depart: Tue Jul 18 2017 Return: Tue Aug 1 2017 Trip spans 15 days
Spirit Airlines
Spirit Airlines
PIT
2:20a
SEA
1:17p
10h 57m
2 stops
SEA
11:15a
PIT
11:40p
12h 25m
1 stop
Depart: Sun Oct 8 2017 Return: Sun Oct 15 2017 Trip spans 8 days
Major Airline
Major Airline
PIT
12:02p
SEA
5:32a
17h 30m
2 stops
SEA
2:55a
PIT
9:41a
6h 46m
2 stops
Depart: Sat Jul 15 2017 Return: Mon Jul 17 2017 Trip spans 3 days
United
United
PIT
10:05a
SEA
9:46p
11h 41m
1 stop
SEA
2:15p
PIT
11:13p
8h 58m
1 stop
Depart: Wed Sep 27 2017 Return: Sun Oct 1 2017 Trip spans 5 days
American Airlines
American Airlines
PIT
2:30p
SEA
9:39p
7h 09m
1 stop
SEA
3:00a
PIT
10:38a
7h 38m
1 stop
Depart: Sat Dec 9 2017 Return: Tue Jan 2 2018 Trip spans 25 days
Delta
Delta
PIT
6:00a
SEA
5:09p
11h 09m
1 stop
SEA
6:20p
PIT
1:26a
7h 06m
1 stop
Depart: Sat Aug 26 2017 Return: Wed Sep 6 2017 Trip spans 12 days
Frontier
Frontier
PIT
5:05a
SEA
8:36p
15h 31m
1 stop
SEA
2:44p
PIT
1:41p
22h 57m
1 stop
Depart: Mon Jul 10 2017 Return: Tue Jul 11 2017 Trip spans 2 days
Spirit Airlines
Spirit Airlines
PIT
4:49p
SEA
1:25p
20h 36m
1 stop
SEA
11:15a
PIT
11:45p
12h 30m
1 stop
Depart: Sun Jul 16 2017 Return: Thu Jul 20 2017 Trip spans 5 days
United
United
PIT
1:55a
SEA
10:54a
8h 59m
1 stop
SEA
1:32p
PIT
11:23p
9h 51m
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

Pittsburgh
$260
Destination

Seattle
$260