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

Book cheap flights from Pittsburgh to Seattle

(Round-trip)
Depart: Mon Apr 24 2017 Return: Sat Apr 29 2017 Trip spans 6 days
Major Airline
Major Airline
PIT
11:54p
SEA
1:10p
13h 16m
1 stop
SEA
9:59a
PIT
7:34p
9h 35m
1 stop
Depart: Tue Apr 25 2017 Return: Sat Apr 29 2017 Trip spans 5 days
Frontier
Frontier
PIT
3:54a
SEA
5:10p
13h 16m
1 stop
SEA
5:57a
PIT
12:31p
6h 34m
1 stop
Depart: Tue Mar 14 2017 Return: Mon Mar 20 2017 Trip spans 7 days
United
United
PIT
12:10p
SEA
8:21p
8h 11m
1 stop
SEA
11:35a
PIT
6:32p
6h 57m
1 stop
Depart: Tue Apr 18 2017 Return: Tue Apr 25 2017 Trip spans 8 days
American Airlines
American Airlines
PIT
9:16a
SEA
7:45p
10h 29m
1 stop
SEA
5:30a
PIT
3:04p
9h 34m
1 stop
Depart: Fri Apr 21 2017 Return: Sun Apr 23 2017 Trip spans 3 days
Delta
Delta
PIT
1:15p
SEA
8:40p
7h 25m
1 stop
SEA
6:45p
PIT
2:49a
8h 04m
1 stop
Depart: Wed Apr 26 2017 Return: Sat Apr 29 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
PIT
1:52a
SEA
11:23a
9h 31m
1 stop
SEA
8:38p
PIT
4:30a
7h 52m
1 stop
Depart: Tue Jul 4 2017 Return: Tue Jul 11 2017 Trip spans 8 days
Spirit Airlines
Spirit Airlines
PIT
4:27p
SEA
1:25p
20h 58m
1 stop
SEA
11:15a
PIT
11:40p
12h 25m
1 stop
Depart: Mon Mar 6 2017 Return: Tue Apr 4 2017 Trip spans 29 days
JetBlue
JetBlue
PIT
10:55a
SEA
8:46p
9h 51m
1 stop
SEA
8:46a
PIT
4:26p
7h 40m
1 stop
Depart: Tue May 2 2017 Return: Wed May 10 2017 Trip spans 9 days
Frontier
Frontier
PIT
3:54a
SEA
5:10p
13h 16m
1 stop
SEA
5:58a
PIT
12:37p
6h 39m
1 stop
Depart: Wed May 3 2017 Return: Wed May 10 2017 Trip spans 8 days
Frontier
Frontier
PIT
3:54a
SEA
8:35p
16h 41m
1 stop
SEA
5:58a
PIT
12:37p
6h 39m
1 stop
Depart: Sat May 6 2017 Return: Sat May 13 2017 Trip spans 8 days
Frontier
Frontier
PIT
3:55a
SEA
8:35p
16h 40m
1 stop
SEA
5:58a
PIT
12:37p
6h 39m
1 stop
Depart: Fri May 12 2017 Return: Sat May 20 2017 Trip spans 9 days
Major Airline
Major Airline
PIT
12:35p
SEA
6:05p
29h 30m
2 stops
SEA
3:56p
PIT
8:46p
28h 50m
2 stops
Depart: Wed Mar 15 2017 Return: Mon Mar 20 2017 Trip spans 6 days
United
United
PIT
1:35p
SEA
9:02p
7h 27m
1 stop
SEA
6:15p
PIT
2:37a
8h 22m
1 stop
Depart: Sun May 7 2017 Return: Tue May 9 2017 Trip spans 3 days
American Airlines
American Airlines
PIT
2:00p
SEA
9:59p
7h 59m
1 stop
SEA
5:30a
PIT
3:04p
9h 34m
1 stop
Depart: Wed Jul 19 2017 Return: Mon Jul 24 2017 Trip spans 6 days
Delta
Delta
PIT
1:00p
SEA
10:47p
9h 47m
1 stop
SEA
7:02p
PIT
2:42a
7h 40m
1 stop
Depart: Wed May 17 2017 Return: Tue May 23 2017 Trip spans 7 days
Major Airline
Major Airline
PIT
12:22a
SEA
6:05p
17h 43m
1 stop
SEA
2:54a
PIT
8:46p
17h 52m
1 stop
Depart: Thu Mar 16 2017 Return: Mon Mar 20 2017 Trip spans 5 days
United
United
PIT
12:10p
SEA
8:21p
8h 11m
1 stop
SEA
7:05p
PIT
3:04a
7h 59m
1 stop
Depart: Fri May 19 2017 Return: Tue May 23 2017 Trip spans 5 days
American Airlines
American Airlines
PIT
2:00p
SEA
9:59p
7h 59m
1 stop
SEA
8:15p
PIT
3:36a
7h 21m
1 stop
Depart: Tue Jul 25 2017 Return: Tue Aug 1 2017 Trip spans 8 days
Delta
Delta
PIT
3:45p
SEA
11:06p
7h 21m
1 stop
SEA
7:02p
PIT
2:42a
7h 40m
1 stop
Depart: Thu Apr 27 2017 Return: Wed May 3 2017 Trip spans 7 days
Frontier
Frontier
PIT
3:54a
SEA
5:10p
13h 16m
1 stop
SEA
5:57a
PIT
12:31p
6h 34m
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
$284
Destination

Seattle
$284