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
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: Mon Mar 13 2017 Return: Wed Mar 15 2017 Trip spans 3 days
Frontier
Frontier
SEA
5:55a
PHL
11:05p
17h 10m
1 stop
PHL
2:00a
SEA
4:43p
14h 43m
1 stop
Depart: Mon Mar 20 2017 Return: Mon Mar 27 2017 Trip spans 8 days
Major Airline
Major Airline
SEA
4:46a
PHL
12:36p
7h 50m
2 stops
PHL
2:15a
SEA
5:46p
15h 31m
2 stops
Depart: Thu Mar 2 2017 Return: Mon Mar 6 2017 Trip spans 5 days
Spirit Airlines
Spirit Airlines
SEA
4:35a
PHL
8:49p
16h 14m
1 stop
PHL
3:40p
SEA
11:53a
20h 13m
1 stop
Depart: Tue Mar 14 2017 Return: Sat Mar 18 2017 Trip spans 5 days
Alaska Airlines
Alaska Airlines
SEA
6:45p
PHL
11:45p
5h 00m
nonstop
PHL
4:00a
SEA
9:58a
5h 58m
nonstop
Depart: Tue Apr 4 2017 Return: Tue Apr 11 2017 Trip spans 8 days
American Airlines
American Airlines
SEA
9:31a
PHL
5:39p
8h 08m
1 stop
PHL
1:55p
SEA
7:55p
6h 00m
nonstop
Depart: Sat Mar 25 2017 Return: Tue Mar 28 2017 Trip spans 4 days
United
United
SEA
3:10p
PHL
12:23a
9h 13m
1 stop
PHL
1:05a
SEA
10:54a
9h 49m
1 stop
Depart: Thu Mar 23 2017 Return: Tue Mar 28 2017 Trip spans 6 days
Delta
Delta
SEA
2:30a
PHL
9:46a
7h 16m
1 stop
PHL
2:00a
SEA
10:18a
8h 18m
1 stop
Depart: Sun Apr 9 2017 Return: Tue Apr 11 2017 Trip spans 3 days
JetBlue
JetBlue
SEA
7:38p
PHL
6:56a
11h 18m
1 stop
PHL
4:19a
SEA
12:54p
8h 35m
1 stop
Depart: Fri Mar 17 2017 Return: Tue Mar 21 2017 Trip spans 5 days
Frontier
Frontier
SEA
2:55p
PHL
11:05p
8h 10m
1 stop
PHL
2:00a
SEA
4:43p
14h 43m
1 stop
Depart: Sat Mar 4 2017 Return: Mon Mar 6 2017 Trip spans 3 days
Spirit Airlines
Spirit Airlines
SEA
4:35a
PHL
8:49p
16h 14m
1 stop
PHL
3:40p
SEA
11:53a
20h 13m
1 stop
Depart: Thu Mar 9 2017 Return: Mon Mar 13 2017 Trip spans 4 days
Major Airline
Major Airline
SEA
1:38p
PHL
5:58a
16h 20m
1 stop
PHL
6:32a
SEA
5:46p
11h 14m
1 stop
Depart: Tue Mar 21 2017 Return: Mon Mar 27 2017 Trip spans 7 days
Frontier
Frontier
SEA
2:55p
PHL
11:05p
8h 10m
1 stop
PHL
2:00a
SEA
4:43p
14h 43m
1 stop
Depart: Wed Mar 15 2017 Return: Sat Mar 18 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
SEA
6:45p
PHL
11:45p
5h 00m
nonstop
PHL
4:00a
SEA
9:58a
5h 58m
nonstop
Depart: Mon Mar 6 2017 Return: Tue Mar 7 2017 Trip spans 2 days
Spirit Airlines
Spirit Airlines
SEA
10:02a
PHL
11:55a
25h 53m
1 stop
PHL
3:40p
SEA
11:53a
20h 13m
1 stop
Depart: Tue Apr 11 2017 Return: Tue Apr 18 2017 Trip spans 8 days
American Airlines
American Airlines
SEA
8:15p
PHL
6:08a
9h 53m
1 stop
PHL
1:55p
SEA
7:55p
6h 00m
nonstop
Depart: Tue May 9 2017 Return: Wed May 10 2017 Trip spans 2 days
Major Airline
Major Airline
SEA
3:00a
PHL
6:41p
15h 41m
1 stop
PHL
6:57a
SEA
5:03a
22h 06m
1 stop
Depart: Wed Apr 5 2017 Return: Wed Apr 12 2017 Trip spans 8 days
United
United
SEA
7:52p
PHL
5:28a
9h 36m
1 stop
PHL
2:20p
SEA
12:13a
9h 53m
1 stop
Depart: Mon Apr 24 2017 Return: Tue Apr 25 2017 Trip spans 2 days
Delta
Delta
SEA
6:45p
PHL
3:23a
8h 38m
1 stop
PHL
2:12p
SEA
10:10p
7h 58m
1 stop
Depart: Tue Mar 7 2017 Return: Wed Mar 15 2017 Trip spans 8 days
Frontier
Frontier
SEA
1:40p
PHL
9:18p
7h 38m
1 stop
PHL
2:00a
SEA
4:43p
14h 43m
1 stop
Depart: Tue Mar 28 2017 Return: Sat Apr 1 2017 Trip spans 5 days
Alaska Airlines
Alaska Airlines
SEA
6:45p
PHL
11:45p
5h 00m
nonstop
PHL
4:00a
SEA
9:58a
5h 58m
nonstop
Direct flights SEA to PHL on American Airlines
Flight # Depart SEA Arrive PHL Sun Mon Tue Wed Thu Fri Sat Valid Between
2315 8:10 am 4:15 pm Mar 5 - Mar 11
2315 8:10 am 4:15 pm Mar 12 - Mar 25
728 8:10 am 4:15 pm Mar 26 - Mar 31
728 8:15 am 4:20 pm Feb 23 - Mar 4
* 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
$284
Destination

Philadelphia
$284
Airlines Airline reviews

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

Overall
7.8
Boarding
8.1
Crew
8.2
Comfort
7.3
Food
5.3
Entertainment
5.1