Find Cheap Flights from Philadelphia to Seattle (PHL - 03A)

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: Wed Jan 24 2018 Return: Mon Jan 29 2018 Trip spans 6 days
Frontier
Frontier
PHL
12:00a
SEA
1:32p
13h 32m
1 stop
SEA
12:00a
PHL
1:37a
25h 37m
1 stop
Depart: Tue Dec 5 2017 Return: Tue Dec 12 2017 Trip spans 8 days
Multiple Airlines
Multiple Airlines
PHL
12:00a
SEA
6:53a
30h 53m
1 stop
SEA
12:00a
PHL
10:30p
22h 30m
2 stops
Depart: Tue Mar 27 2018 Return: Mon Apr 2 2018 Trip spans 7 days
Delta
Delta
PHL
12:00a
SEA
9:40a
9h 40m
1 stop
SEA
12:00a
PHL
7:23a
7h 23m
1 stop
Depart: Sun Dec 10 2017 Return: Tue Dec 12 2017 Trip spans 3 days
Frontier
Frontier
PHL
12:00a
SEA
7:02a
31h 02m
1 stop
SEA
12:00a
PHL
4:34a
28h 34m
1 stop
Depart: Sat Mar 24 2018 Return: Thu Mar 29 2018 Trip spans 6 days
American Airlines
American Airlines
PHL
12:00a
SEA
5:56a
5h 56m
nonstop
SEA
12:00a
PHL
5:04a
5h 04m
nonstop
Depart: Sun Dec 3 2017 Return: Mon Dec 11 2017 Trip spans 9 days
Frontier
Frontier
PHL
12:00a
SEA
6:53a
30h 53m
1 stop
SEA
12:00a
PHL
9:21a
9h 21m
1 stop
Depart: Sat Jan 27 2018 Return: Tue Jan 30 2018 Trip spans 4 days
Frontier
Frontier
PHL
12:00a
SEA
1:32p
13h 32m
1 stop
SEA
12:00a
PHL
3:43a
27h 43m
1 stop
Depart: Sun Dec 3 2017 Return: Mon Dec 4 2017 Trip spans 2 days
Multiple Airlines
Multiple Airlines
PHL
12:00a
SEA
6:53a
30h 53m
1 stop
SEA
12:00a
PHL
10:59a
10h 59m
1 stop
Depart: Thu Feb 1 2018 Return: Thu Feb 8 2018 Trip spans 8 days
Multiple Airlines
Multiple Airlines
PHL
12:00a
SEA
2:13p
14h 13m
1 stop
SEA
12:00a
PHL
10:17a
10h 17m
1 stop
Depart: Tue Feb 6 2018 Return: Tue Feb 13 2018 Trip spans 8 days
Frontier
Frontier
PHL
12:00a
SEA
11:26a
11h 26m
1 stop
SEA
12:00a
PHL
8:05p
20h 05m
2 stops
Depart: Thu May 3 2018 Return: Mon May 7 2018 Trip spans 5 days
Delta
Delta
PHL
12:00a
SEA
9:45a
9h 45m
1 stop
SEA
12:00a
PHL
6:55a
6h 55m
1 stop
Depart: Sat May 5 2018 Return: Mon May 7 2018 Trip spans 3 days
Multiple Airlines
Multiple Airlines
PHL
12:00a
SEA
9:45a
9h 45m
1 stop
SEA
12:00a
PHL
5:21p
17h 21m
2 stops
Depart: Tue Apr 10 2018 Return: Mon Apr 16 2018 Trip spans 7 days
Frontier
Frontier
PHL
12:00a
SEA
8:27a
8h 27m
1 stop
SEA
12:00a
PHL
8:06a
8h 06m
1 stop
Depart: Sun Feb 11 2018 Return: Sun Feb 18 2018 Trip spans 8 days
Multiple Airlines
Multiple Airlines
PHL
12:00a
SEA
2:37a
26h 37m
2 stops
SEA
12:00a
PHL
11:09a
11h 09m
1 stop
Depart: Tue May 22 2018 Return: Tue May 29 2018 Trip spans 8 days
Frontier
Frontier
PHL
12:00a
SEA
8:22a
8h 22m
1 stop
SEA
12:00a
PHL
11:05a
11h 05m
2 stops
Depart: Tue Mar 6 2018 Return: Thu Mar 8 2018 Trip spans 3 days
Multiple Airlines
Multiple Airlines
PHL
12:00a
SEA
10:58a
10h 58m
2 stops
SEA
12:00a
PHL
7:25a
7h 25m
1 stop
Depart: Fri Mar 2 2018 Return: Sun Mar 4 2018 Trip spans 3 days
Multiple Airlines
Multiple Airlines
PHL
12:00a
SEA
9:01a
9h 01m
1 stop
SEA
12:00a
PHL
9:02a
9h 02m
1 stop
Depart: Sat Dec 30 2017 Return: Thu Jan 4 2018 Trip spans 6 days
American Airlines
American Airlines
PHL
12:00a
SEA
6:08a
6h 08m
nonstop
SEA
12:00a
PHL
5:16a
5h 16m
nonstop
Depart: Thu Nov 23 2017 Return: Sat Nov 25 2017 Trip spans 3 days
Multiple Airlines
Multiple Airlines
PHL
12:00a
SEA
8:58a
8h 58m
1 stop
SEA
12:00a
PHL
10:26a
10h 26m
1 stop
Depart: Fri Nov 24 2017 Return: Sun Nov 26 2017 Trip spans 3 days
Multiple Airlines
Multiple Airlines
PHL
12:00a
SEA
6:16a
6h 16m
nonstop
SEA
12:00a
PHL
5:09a
5h 09m
nonstop
* 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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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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^ The fares displayed in KAYAK ads found on other sites include all taxes and fees for economy class travel and were found by KAYAK users in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.
Airports
Origin

Philadelphia
$163
Destination

Seattle
$163