Find Cheap Flights from Seattle to Philadelphia

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 Seattle to Philadelphia

(Round-trip)
Depart: Wed Sep 27 2017 Return: Sat Sep 30 2017 Trip spans 4 days
Frontier
Frontier
SEA
6:55a
PHL
5:26p
10h 31m
1 stop
PHL
11:20a
SEA
8:37p
9h 17m
1 stop
Depart: Fri Jul 28 2017 Return: Wed Aug 2 2017 Trip spans 6 days
Major Airline
Major Airline
SEA
11:00p
PHL
8:43p
21h 43m
3 stops
PHL
12:20a
SEA
5:18a
28h 58m
3 stops
Depart: Wed Aug 30 2017 Return: Fri Sep 8 2017 Trip spans 10 days
Delta
Delta
SEA
2:00a
PHL
9:00a
7h 00m
1 stop
PHL
12:45p
SEA
8:55p
8h 10m
1 stop
Depart: Wed Jul 19 2017 Return: Mon Jul 24 2017 Trip spans 6 days
American Airlines
American Airlines
SEA
9:26p
PHL
2:34a
5h 08m
nonstop
PHL
1:55p
SEA
8:01p
6h 06m
nonstop
Depart: Mon Aug 14 2017 Return: Fri Aug 18 2017 Trip spans 5 days
United
United
SEA
8:15p
PHL
5:09a
8h 54m
1 stop
PHL
12:40p
SEA
9:19p
8h 39m
1 stop
Depart: Wed Jul 5 2017 Return: Sat Jul 15 2017 Trip spans 11 days
Spirit Airlines
Spirit Airlines
SEA
11:15a
PHL
11:36p
12h 21m
1 stop
PHL
3:27p
SEA
11:59p
8h 32m
1 stop
Depart: Sat Nov 18 2017 Return: Thu Nov 30 2017 Trip spans 13 days
JetBlue
JetBlue
SEA
5:50p
PHL
2:28a
8h 38m
1 stop
PHL
1:20a
SEA
10:00a
8h 40m
1 stop
Depart: Tue Jul 11 2017 Return: Tue Jul 18 2017 Trip spans 8 days
Frontier
Frontier
SEA
3:05p
PHL
10:34p
7h 29m
1 stop
PHL
5:59p
SEA
10:16a
16h 17m
1 stop
Depart: Sun Aug 20 2017 Return: Tue Aug 29 2017 Trip spans 10 days
Major Airline
Major Airline
SEA
2:50a
PHL
1:22p
10h 32m
1 stop
PHL
4:35a
SEA
4:57a
24h 22m
1 stop
Depart: Wed Jul 12 2017 Return: Tue Jul 18 2017 Trip spans 7 days
Frontier
Frontier
SEA
5:55a
PHL
10:34p
16h 39m
1 stop
PHL
5:59p
SEA
10:16a
16h 17m
1 stop
Depart: Thu Sep 7 2017 Return: Sun Sep 10 2017 Trip spans 4 days
Delta
Delta
SEA
2:00a
PHL
8:41a
6h 41m
1 stop
PHL
2:00p
SEA
10:22p
8h 22m
1 stop
Depart: Thu Jul 20 2017 Return: Mon Jul 24 2017 Trip spans 5 days
American Airlines
American Airlines
SEA
9:26p
PHL
2:34a
5h 08m
nonstop
PHL
1:55p
SEA
8:01p
6h 06m
nonstop
Depart: Wed Aug 23 2017 Return: Fri Aug 25 2017 Trip spans 3 days
United
United
SEA
6:40p
PHL
5:09a
10h 29m
1 stop
PHL
4:05p
SEA
12:51a
8h 46m
1 stop
Depart: Mon Aug 21 2017 Return: Sat Aug 26 2017 Trip spans 6 days
Major Airline
Major Airline
SEA
2:50a
PHL
1:22p
10h 32m
1 stop
PHL
2:27a
SEA
6:08p
15h 41m
1 stop
Depart: Sat Jul 15 2017 Return: Tue Jul 18 2017 Trip spans 4 days
Frontier
Frontier
SEA
2:35p
PHL
10:34p
7h 59m
1 stop
PHL
5:59p
SEA
10:16a
16h 17m
1 stop
Depart: Thu Jul 6 2017 Return: Sat Jul 15 2017 Trip spans 10 days
Spirit Airlines
Spirit Airlines
SEA
11:15a
PHL
11:36p
12h 21m
1 stop
PHL
3:27p
SEA
11:59p
8h 32m
1 stop
Depart: Thu Sep 21 2017 Return: Mon Sep 25 2017 Trip spans 5 days
Delta
Delta
SEA
3:00a
PHL
9:56a
6h 56m
1 stop
PHL
2:00p
SEA
10:22p
8h 22m
1 stop
Depart: Sun Jul 23 2017 Return: Tue Jul 25 2017 Trip spans 3 days
American Airlines
American Airlines
SEA
9:26p
PHL
2:34a
5h 08m
nonstop
PHL
5:00p
SEA
11:11p
6h 11m
nonstop
Depart: Tue Sep 5 2017 Return: Wed Sep 13 2017 Trip spans 9 days
United
United
SEA
6:40p
PHL
5:08a
10h 28m
1 stop
PHL
2:10p
SEA
11:57p
9h 47m
1 stop
Depart: Tue Aug 22 2017 Return: Sat Aug 26 2017 Trip spans 5 days
Major Airline
Major Airline
SEA
3:09a
PHL
8:38p
17h 29m
1 stop
PHL
11:27a
SEA
7:59p
8h 32m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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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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Airports
Origin

Seattle
$322
Destination

Philadelphia
$322
Airlines Airline reviews

11 travelers who booked a flight from Seattle to Philadelphia rated their chosen airlines with an average of 7.0.

Overall
6.9
Boarding
7.8
Crew
8.0
Comfort
6.9
Food
4.0
Entertainment
4.6