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

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 Philadelphia to Seattle/Tacoma Intl

(Round-trip)
Depart: Tue Oct 31 2017 Return: Sat Nov 4 2017 Trip spans 5 days
Frontier
Frontier
PHL
12:00a
SEA
10:56a
10h 56m
1 stop
SEA
12:00a
PHL
7:07a
7h 07m
1 stop
Depart: Wed Nov 1 2017 Return: Tue Nov 7 2017 Trip spans 7 days
Multiple Airlines
Multiple Airlines
PHL
12:00a
SEA
8:47a
8h 47m
1 stop
SEA
12:00a
PHL
12:45p
12h 45m
1 stop
Depart: Thu Mar 1 2018 Return: Mon Mar 5 2018 Trip spans 5 days
Delta
Delta
PHL
12:00a
SEA
10:45a
10h 45m
1 stop
SEA
12:00a
PHL
8:22a
8h 22m
1 stop
Depart: Sun Dec 24 2017 Return: Sun Dec 31 2017 Trip spans 8 days
United
United
PHL
12:00a
SEA
9:30a
9h 30m
1 stop
SEA
12:00a
PHL
8:57a
8h 57m
1 stop
Depart: Sun Dec 3 2017 Return: Wed Dec 6 2017 Trip spans 4 days
Multiple Airlines
Multiple Airlines
PHL
12:00a
SEA
8:58a
8h 58m
1 stop
SEA
12:00a
PHL
9:33a
9h 33m
1 stop
Depart: Wed Nov 1 2017 Return: Sat Nov 4 2017 Trip spans 4 days
Frontier
Frontier
PHL
12:00a
SEA
8:47a
8h 47m
1 stop
SEA
12:00a
PHL
8:32a
8h 32m
1 stop
Depart: Wed Nov 22 2017 Return: Sat Nov 25 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
PHL
12:00a
SEA
6:16a
6h 16m
nonstop
SEA
12:00a
PHL
5:12a
5h 12m
nonstop
Depart: Fri Dec 1 2017 Return: Wed Dec 6 2017 Trip spans 6 days
Multiple Airlines
Multiple Airlines
PHL
12:00a
SEA
8:16a
8h 16m
1 stop
SEA
12:00a
PHL
9:02a
9h 02m
1 stop
Depart: Sat Dec 9 2017 Return: Wed Dec 13 2017 Trip spans 5 days
Multiple Airlines
Multiple Airlines
PHL
12:00a
SEA
6:16a
6h 16m
nonstop
SEA
12:00a
PHL
10:26a
10h 26m
1 stop
Depart: Tue Apr 10 2018 Return: Sat Apr 14 2018 Trip spans 5 days
Frontier
Frontier
PHL
12:00a
SEA
7:57p
19h 57m
1 stop
SEA
12:00a
PHL
4:43p
16h 43m
2 stops
Depart: Thu Jan 18 2018 Return: Tue Jan 23 2018 Trip spans 6 days
Multiple Airlines
Multiple Airlines
PHL
12:00a
SEA
9:26a
9h 26m
1 stop
SEA
12:00a
PHL
10:27a
10h 27m
1 stop
Depart: Tue Jan 9 2018 Return: Wed Jan 17 2018 Trip spans 9 days
Multiple Airlines
Multiple Airlines
PHL
12:00a
SEA
2:13p
14h 13m
1 stop
SEA
12:00a
PHL
10:27a
10h 27m
1 stop
Depart: Sat Feb 10 2018 Return: Wed Feb 14 2018 Trip spans 5 days
Multiple Airlines
Multiple Airlines
PHL
12:00a
SEA
5:43p
17h 43m
1 stop
SEA
12:00a
PHL
10:27a
10h 27m
1 stop
Depart: Fri Oct 27 2017 Return: Tue Oct 31 2017 Trip spans 5 days
Frontier
Frontier
PHL
12:00a
SEA
9:27p
21h 27m
2 stops
SEA
12:00a
PHL
4:47a
28h 47m
1 stop
Depart: Sun Mar 11 2018 Return: Wed Mar 14 2018 Trip spans 3 days
Multiple Airlines
Multiple Airlines
PHL
12:00a
SEA
12:39p
11h 39m
2 stops
SEA
12:00a
PHL
10:30a
10h 30m
1 stop
Depart: Fri Oct 27 2017 Return: Sun Oct 29 2017 Trip spans 3 days
Multiple Airlines
Multiple Airlines
PHL
12:00a
SEA
8:18p
20h 18m
1 stop
SEA
12:00a
PHL
12:50p
12h 50m
1 stop
Direct flights PHL to SEA on American Airlines
Flight # Depart PHL Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
1641 8:30 am 11:47 am Nov 23 - Nov 23
1356 5:53 pm 9:00 pm Oct 12 - Oct 28
1356 5:53 pm 9:00 pm Oct 29 - Nov 4
727 5:55 pm 9:11 pm Nov 5 - Nov 7
727 5:55 pm 9:11 pm Nov 8 - Nov 22
727 5:55 pm 9:11 pm Nov 24 - 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

Philadelphia
$245
Destination

Seattle
$245
Airlines Airline reviews

19 travelers who booked a flight from Philadelphia to Seattle rated their chosen airlines with an average of 8.5.

Overall
8.6
Boarding
8.8
Crew
8.9
Comfort
8.8
Food
7.2
Entertainment
8.0