Find Deals on Flights from Seattle/Tacoma Intl to Philadelphia (SEA - PHL)

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.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

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

Book cheap flights from Seattle/Tacoma Intl to Philadelphia

(Round-trip)
Depart: Sat Jan 14 2017 Return: Wed Jan 18 2017 Trip spans 5 days
Frontier
Frontier
SEA
5:10a
PHL
1:57p
8h 47m
1 stop
PHL
1:00a
SEA
4:02p
15h 02m
1 stop
Depart: Thu Jan 19 2017 Return: Tue Jan 24 2017 Trip spans 6 days
Major Airline
Major Airline
SEA
2:13a
PHL
6:42p
16h 29m
2 stops
PHL
4:25a
SEA
7:21a
26h 56m
2 stops
Depart: Sun Jan 22 2017 Return: Wed Jan 25 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
SEA
3:30a
PHL
8:35a
5h 05m
nonstop
PHL
12:35p
SEA
6:45p
6h 10m
nonstop
Depart: Tue Jan 17 2017 Return: Sat Jan 21 2017 Trip spans 5 days
American Airlines
American Airlines
SEA
3:15a
PHL
8:20a
5h 05m
nonstop
PHL
1:05p
SEA
7:26p
6h 21m
nonstop
Depart: Sat Dec 10 2016 Return: Tue Dec 13 2016 Trip spans 4 days
Spirit Airlines
Spirit Airlines
SEA
1:00a
PHL
11:50a
10h 50m
1 stop
PHL
1:40a
SEA
6:34p
16h 54m
1 stop
Depart: Mon Jan 23 2017 Return: Thu Jan 26 2017 Trip spans 4 days
JetBlue
JetBlue
SEA
6:12p
PHL
1:40a
7h 28m
1 stop
PHL
3:19a
SEA
12:21p
9h 02m
1 stop
Depart: Sat Dec 24 2016 Return: Thu Jan 5 2017 Trip spans 13 days
Delta
Delta
SEA
6:15p
PHL
2:20a
8h 05m
1 stop
PHL
7:55a
SEA
3:40p
7h 45m
1 stop
Depart: Sat Jan 21 2017 Return: Tue Jan 24 2017 Trip spans 4 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 Feb 14 2017 Return: Tue Mar 21 2017 Trip spans 35 days
Major Airline
Major Airline
SEA
1:14p
PHL
8:41p
7h 27m
1 stop
PHL
2:15a
SEA
8:54a
30h 39m
1 stop
Depart: Wed Feb 15 2017 Return: Wed Feb 22 2017 Trip spans 8 days
Frontier
Frontier
SEA
5:10a
PHL
1:57p
8h 47m
1 stop
PHL
1:00a
SEA
4:02p
15h 02m
1 stop
Depart: Thu Jan 12 2017 Return: Tue Jan 17 2017 Trip spans 6 days
Major Airline
Major Airline
SEA
2:13a
PHL
8:40p
18h 27m
1 stop
PHL
4:25a
SEA
7:21a
26h 56m
1 stop
Depart: Mon Jan 30 2017 Return: Fri Feb 10 2017 Trip spans 12 days
Alaska Airlines
Alaska Airlines
SEA
3:30a
PHL
8:35a
5h 05m
nonstop
PHL
12:35p
SEA
6:45p
6h 10m
nonstop
Depart: Sun Jan 15 2017 Return: Sat Jan 21 2017 Trip spans 7 days
Frontier
Frontier
SEA
5:10a
PHL
1:57p
8h 47m
1 stop
PHL
1:00a
SEA
4:02p
15h 02m
1 stop
Depart: Wed Jan 18 2017 Return: Wed Jan 25 2017 Trip spans 8 days
American Airlines
American Airlines
SEA
3:15a
PHL
8:20a
5h 05m
nonstop
PHL
1:05p
SEA
7:26p
6h 21m
nonstop
Depart: Tue Mar 7 2017 Return: Mon Mar 13 2017 Trip spans 6 days
Major Airline
Major Airline
SEA
8:55a
PHL
5:15p
8h 20m
1 stop
PHL
7:44a
SEA
4:51p
9h 07m
1 stop
Depart: Thu Feb 2 2017 Return: Mon Feb 6 2017 Trip spans 5 days
Alaska Airlines
Alaska Airlines
SEA
3:30a
PHL
8:35a
5h 05m
nonstop
PHL
12:35p
SEA
6:45p
6h 10m
nonstop
Depart: Fri Feb 10 2017 Return: Mon Feb 13 2017 Trip spans 4 days
JetBlue
JetBlue
SEA
6:14p
PHL
1:41a
7h 27m
1 stop
PHL
3:19a
SEA
12:23p
9h 04m
1 stop
Depart: Tue Dec 13 2016 Return: Wed Dec 14 2016 Trip spans 2 days
Spirit Airlines
Spirit Airlines
SEA
1:00a
PHL
11:50a
10h 50m
1 stop
PHL
1:40a
SEA
6:34p
16h 54m
1 stop
Depart: Fri Jan 20 2017 Return: Sat Jan 21 2017 Trip spans 2 days
Frontier
Frontier
SEA
5:10a
PHL
1:57p
8h 47m
1 stop
PHL
1:00a
SEA
4:02p
15h 02m
1 stop
Depart: Wed Feb 1 2017 Return: Tue Feb 7 2017 Trip spans 7 days
American Airlines
American Airlines
SEA
3:15a
PHL
8:20a
5h 05m
nonstop
PHL
1:05p
SEA
7:26p
6h 21m
nonstop
Direct flights SEA to PHL on Delta
Flight # Depart SEA Arrive PHL Sun Mon Tue Wed Thu Fri Sat Valid Between
9186 8:30 am 4:35 pm Dec 15 - Dec 20
9186 8:30 am 4:35 pm Dec 5 - Dec 12
9186 8:30 am 4:35 pm Dec 6 - Dec 11
9186 8:30 am 4:35 pm Jan 1 - Jan 12
9186 8:30 am 4:35 pm Dec 31 - Jan 10
9186 8:30 am 4:35 pm Dec 24 - Dec 30
9186 8:30 am 4:35 pm Dec 21 - Dec 29
9186 8:30 am 4:35 pm Dec 13 - Dec 14
* 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

Seattle
$252
Destination

Philadelphia
$252
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