Find Deals on 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
Students
under 26
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: Thu Feb 2 2017 Return: Mon Feb 6 2017 Trip spans 5 days
Frontier
Frontier
SEA
5:15a
PHL
1:57p
8h 42m
1 stop
PHL
1:00a
SEA
4:04p
15h 04m
1 stop
Depart: Wed Feb 1 2017 Return: Sat Feb 4 2017 Trip spans 4 days
Major Airline
Major Airline
SEA
8:00p
PHL
6:56a
10h 56m
1 stop
PHL
10:19p
SEA
7:21a
9h 02m
1 stop
Depart: Tue Jan 24 2017 Return: Mon Jan 30 2017 Trip spans 7 days
Spirit Airlines
Spirit Airlines
SEA
1:00a
PHL
11:56a
10h 56m
1 stop
PHL
3:51p
SEA
11:52a
20h 01m
1 stop
Depart: Sun Feb 5 2017 Return: Fri Feb 10 2017 Trip spans 6 days
JetBlue
JetBlue
SEA
6:14p
PHL
11:42p
29h 28m
1 stop
PHL
3:19a
SEA
8:21p
17h 02m
1 stop
Depart: Sat Feb 25 2017 Return: Tue Feb 28 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
SEA
3:30a
PHL
8:32a
5h 02m
nonstop
PHL
12:35p
SEA
6:45p
6h 10m
nonstop
Depart: Thu Jun 1 2017 Return: Sun Jun 4 2017 Trip spans 4 days
Southwest
Southwest
SEA
2:40a
PHL
9:40a
7h 00m
1 stop
PHL
3:35a
SEA
1:05p
9h 30m
1 stop
Depart: Fri Feb 24 2017 Return: Tue Feb 28 2017 Trip spans 5 days
Delta
Delta
SEA
7:14p
PHL
2:36a
7h 22m
1 stop
PHL
10:45a
SEA
8:25p
9h 40m
1 stop
Depart: Wed May 24 2017 Return: Tue May 30 2017 Trip spans 7 days
American Airlines
American Airlines
SEA
7:56a
PHL
1:00p
5h 04m
nonstop
PHL
11:33a
SEA
5:29p
5h 56m
nonstop
Depart: Thu Feb 9 2017 Return: Tue Feb 14 2017 Trip spans 6 days
Frontier
Frontier
SEA
5:10a
PHL
2:04p
8h 54m
1 stop
PHL
1:00a
SEA
4:04p
15h 04m
1 stop
Depart: Thu Jan 26 2017 Return: Tue Jan 31 2017 Trip spans 6 days
Frontier
Frontier
SEA
5:10a
PHL
1:57p
8h 47m
1 stop
PHL
1:00a
SEA
4:02p
15h 02m
1 stop
Depart: Tue Mar 14 2017 Return: Sat Mar 18 2017 Trip spans 5 days
Major Airline
Major Airline
SEA
10:00p
PHL
8:55a
10h 55m
1 stop
PHL
9:30p
SEA
9:14a
11h 44m
1 stop
Depart: Fri Mar 3 2017 Return: Tue Mar 7 2017 Trip spans 5 days
Frontier
Frontier
SEA
5:10a
PHL
2:00p
8h 50m
1 stop
PHL
1:00a
SEA
4:03p
15h 03m
1 stop
Depart: Wed Jan 25 2017 Return: Mon Jan 30 2017 Trip spans 6 days
Spirit Airlines
Spirit Airlines
SEA
1:00a
PHL
11:56a
10h 56m
1 stop
PHL
3:51p
SEA
11:52a
20h 01m
1 stop
Depart: Sun Feb 12 2017 Return: Tue Feb 14 2017 Trip spans 3 days
JetBlue
JetBlue
SEA
6:14p
PHL
1:56a
7h 42m
1 stop
PHL
3:19a
SEA
12:21p
9h 02m
1 stop
Depart: Sat Jan 28 2017 Return: Mon Jan 30 2017 Trip spans 3 days
Spirit Airlines
Spirit Airlines
SEA
1:00a
PHL
11:56a
10h 56m
1 stop
PHL
3:51p
SEA
11:52a
20h 01m
1 stop
Depart: Thu May 18 2017 Return: Tue May 23 2017 Trip spans 6 days
Major Airline
Major Airline
SEA
10:59a
PHL
7:15p
8h 16m
nonstop
PHL
6:57a
SEA
6:05p
11h 08m
nonstop
Depart: Tue Mar 7 2017 Return: Tue Mar 14 2017 Trip spans 7 days
Frontier
Frontier
SEA
1:55p
PHL
10:05p
8h 10m
1 stop
PHL
2:00a
SEA
5:03p
15h 03m
1 stop
Depart: Sun Jan 29 2017 Return: Wed Feb 1 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
SEA
3:30a
PHL
8:37a
5h 07m
nonstop
PHL
12:35p
SEA
6:45p
6h 10m
nonstop
Depart: Wed Mar 1 2017 Return: Sat Mar 11 2017 Trip spans 11 days
Delta
Delta
SEA
7:40p
PHL
2:47a
7h 07m
1 stop
PHL
9:35a
SEA
8:37p
11h 02m
1 stop
Depart: Tue Feb 7 2017 Return: Wed Feb 8 2017 Trip spans 2 days
Spirit Airlines
Spirit Airlines
SEA
4:40a
PHL
9:24p
16h 44m
1 stop
PHL
3:51p
SEA
11:53a
20h 02m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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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.

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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

Seattle
$228
Destination

Philadelphia
$228
Airlines Airline reviews

24 travelers who booked a flight from Seattle to Philadelphia rated their chosen airlines with an average of 7.4.

Overall
7.7
Boarding
8.1
Crew
8.2
Comfort
7.2
Food
5.1
Entertainment
4.9