Find Cheap Flights from Philadelphia 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 Philadelphia to Seattle

(Round-trip)
Depart: Sat Jun 3 2017 Return: Tue Jun 6 2017 Trip spans 4 days
Frontier
Frontier
PHL
1:05p
SEA
9:15a
20h 10m
1 stop
SEA
7:00a
PHL
5:30p
10h 30m
1 stop
Depart: Mon Sep 25 2017 Return: Tue Oct 17 2017 Trip spans 23 days
Major Airline
Major Airline
PHL
10:59a
SEA
5:32a
18h 33m
1 stop
SEA
9:35a
PHL
7:59p
10h 24m
1 stop
Depart: Tue Jul 11 2017 Return: Tue Jul 18 2017 Trip spans 8 days
Spirit Airlines
Spirit Airlines
PHL
3:27p
SEA
11:59p
8h 32m
1 stop
SEA
11:15a
PHL
11:36p
12h 21m
1 stop
Depart: Sat Aug 26 2017 Return: Wed Sep 6 2017 Trip spans 12 days
Delta
Delta
PHL
1:25p
SEA
10:51p
9h 26m
1 stop
SEA
6:45p
PHL
1:40a
6h 55m
1 stop
Depart: Tue Jul 4 2017 Return: Mon Jul 10 2017 Trip spans 7 days
American Airlines
American Airlines
PHL
5:00p
SEA
11:11p
6h 11m
nonstop
SEA
9:26p
PHL
2:34a
5h 08m
nonstop
Depart: Sun Aug 20 2017 Return: Sat Aug 26 2017 Trip spans 7 days
United
United
PHL
2:40a
SEA
1:08p
10h 28m
1 stop
SEA
8:01p
PHL
5:09a
9h 08m
1 stop
Depart: Wed Sep 6 2017 Return: Tue Sep 12 2017 Trip spans 7 days
Frontier
Frontier
PHL
11:20a
SEA
8:31p
9h 11m
1 stop
SEA
3:00p
PHL
10:46p
7h 46m
1 stop
Depart: Wed Jul 12 2017 Return: Wed Jul 19 2017 Trip spans 8 days
Spirit Airlines
Spirit Airlines
PHL
3:27p
SEA
11:59p
8h 32m
1 stop
SEA
11:15a
PHL
11:36p
12h 21m
1 stop
Depart: Wed Sep 13 2017 Return: Tue Sep 19 2017 Trip spans 7 days
Frontier
Frontier
PHL
11:20a
SEA
8:37p
9h 17m
1 stop
SEA
3:00p
PHL
10:46p
7h 46m
1 stop
Depart: Tue Oct 10 2017 Return: Fri Oct 13 2017 Trip spans 4 days
Major Airline
Major Airline
PHL
4:55a
SEA
5:32a
24h 37m
1 stop
SEA
11:00p
PHL
7:59p
20h 59m
1 stop
Depart: Sun Aug 27 2017 Return: Wed Sep 6 2017 Trip spans 11 days
Delta
Delta
PHL
3:00p
SEA
10:51p
7h 51m
1 stop
SEA
6:45p
PHL
1:40a
6h 55m
1 stop
Depart: Tue Jul 18 2017 Return: Wed Jul 19 2017 Trip spans 2 days
Spirit Airlines
Spirit Airlines
PHL
3:27p
SEA
11:59p
8h 32m
1 stop
SEA
11:15a
PHL
11:36p
12h 21m
1 stop
Depart: Mon Jul 10 2017 Return: Mon Jul 17 2017 Trip spans 8 days
American Airlines
American Airlines
PHL
5:00p
SEA
11:11p
6h 11m
nonstop
SEA
9:26p
PHL
2:34a
5h 08m
nonstop
Depart: Wed Sep 27 2017 Return: Tue Oct 17 2017 Trip spans 21 days
Frontier
Frontier
PHL
11:20a
SEA
8:37p
9h 17m
1 stop
SEA
6:55a
PHL
5:26p
10h 31m
1 stop
Depart: Fri Sep 15 2017 Return: Mon Sep 25 2017 Trip spans 11 days
Major Airline
Major Airline
PHL
12:15a
SEA
11:43a
11h 28m
3 stops
SEA
9:28a
PHL
7:59p
10h 31m
3 stops
Depart: Mon Aug 21 2017 Return: Thu Aug 24 2017 Trip spans 4 days
United
United
PHL
4:35a
SEA
3:17p
10h 42m
1 stop
SEA
8:01p
PHL
5:02a
9h 01m
1 stop
Depart: Mon Aug 28 2017 Return: Wed Sep 6 2017 Trip spans 10 days
Delta
Delta
PHL
1:25p
SEA
10:51p
9h 26m
1 stop
SEA
8:10p
PHL
3:16a
7h 06m
1 stop
Depart: Wed Jul 19 2017 Return: Tue Jul 25 2017 Trip spans 7 days
Spirit Airlines
Spirit Airlines
PHL
3:27p
SEA
11:59p
8h 32m
1 stop
SEA
11:15a
PHL
11:36p
12h 21m
1 stop
Depart: Wed Aug 2 2017 Return: Tue Aug 8 2017 Trip spans 7 days
American Airlines
American Airlines
PHL
5:00p
SEA
11:11p
6h 11m
nonstop
SEA
9:26p
PHL
2:34a
5h 08m
nonstop
Depart: Wed Aug 23 2017 Return: Thu Aug 24 2017 Trip spans 2 days
United
United
PHL
2:00a
SEA
11:08a
9h 08m
1 stop
SEA
8:01p
PHL
5:02a
9h 01m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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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

Philadelphia
$313
Destination

Seattle
$313
Airlines Airline reviews

24 travelers who booked a flight from Philadelphia to Seattle rated their chosen airlines with an average of 6.5.

Overall
6.7
Boarding
7.2
Crew
7.6
Comfort
6.3
Food
5.7
Entertainment
5.2