Find Deals on 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
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 Philadelphia to Seattle/Tacoma Intl

(Round-trip)
Depart: Sat Jan 21 2017 Return: Wed Jan 25 2017 Trip spans 5 days
Frontier
Frontier
PHL
1:00a
SEA
4:02p
15h 02m
1 stop
SEA
5:10a
PHL
1:57p
8h 47m
1 stop
Depart: Mon Jan 9 2017 Return: Sat Jan 14 2017 Trip spans 6 days
Major Airline
Major Airline
PHL
10:15p
SEA
10:09a
11h 54m
1 stop
SEA
9:05p
PHL
5:24a
8h 19m
1 stop
Depart: Thu Jan 26 2017 Return: Mon Jan 30 2017 Trip spans 5 days
Alaska Airlines
Alaska Airlines
PHL
12:35p
SEA
6:45p
6h 10m
nonstop
SEA
3:30a
PHL
8:35a
5h 05m
nonstop
Depart: Mon Jan 23 2017 Return: Tue Jan 24 2017 Trip spans 2 days
American Airlines
American Airlines
PHL
1:05p
SEA
7:26p
6h 21m
nonstop
SEA
3:15a
PHL
8:20a
5h 05m
nonstop
Depart: Mon Feb 20 2017 Return: Mon Feb 27 2017 Trip spans 8 days
JetBlue
JetBlue
PHL
9:36a
SEA
8:58p
11h 22m
1 stop
SEA
6:49p
PHL
5:59a
11h 10m
1 stop
Depart: Fri Dec 9 2016 Return: Sun Jan 8 2017 Trip spans 31 days
Spirit Airlines
Spirit Airlines
PHL
1:40a
SEA
6:34p
16h 54m
1 stop
SEA
1:00a
PHL
12:42p
11h 42m
1 stop
Depart: Sat May 27 2017 Return: Sat Jun 3 2017 Trip spans 8 days
United
United
PHL
12:15p
SEA
11:51p
11h 36m
1 stop
SEA
7:40p
PHL
2:24a
6h 44m
1 stop
Depart: Wed Feb 22 2017 Return: Sat Feb 25 2017 Trip spans 4 days
Frontier
Frontier
PHL
1:00a
SEA
4:02p
15h 02m
1 stop
SEA
5:10a
PHL
1:57p
8h 47m
1 stop
Depart: Wed Jan 11 2017 Return: Fri Jan 20 2017 Trip spans 10 days
Major Airline
Major Airline
PHL
12:17a
SEA
7:21a
31h 04m
nonstop
SEA
1:14p
PHL
8:40p
7h 26m
nonstop
Depart: Thu Jan 19 2017 Return: Wed Jan 25 2017 Trip spans 7 days
Frontier
Frontier
PHL
1:00a
SEA
4:02p
15h 02m
1 stop
SEA
5:10a
PHL
1:57p
8h 47m
1 stop
Depart: Fri Feb 17 2017 Return: Tue Feb 21 2017 Trip spans 5 days
Alaska Airlines
Alaska Airlines
PHL
12:35p
SEA
6:45p
6h 10m
nonstop
SEA
3:30a
PHL
8:32a
5h 02m
nonstop
Depart: Fri Jan 13 2017 Return: Thu Jan 19 2017 Trip spans 7 days
Major Airline
Major Airline
PHL
10:44a
SEA
3:21p
28h 37m
2 stops
SEA
2:13a
PHL
6:42p
16h 29m
2 stops
Depart: Fri Jan 20 2017 Return: Wed Jan 25 2017 Trip spans 6 days
Frontier
Frontier
PHL
1:00a
SEA
4:02p
15h 02m
1 stop
SEA
5:10a
PHL
1:57p
8h 47m
1 stop
Depart: Thu Feb 23 2017 Return: Mon Feb 27 2017 Trip spans 5 days
Alaska Airlines
Alaska Airlines
PHL
12:35p
SEA
6:45p
6h 10m
nonstop
SEA
3:30a
PHL
8:32a
5h 02m
nonstop
Depart: Sat Feb 4 2017 Return: Fri Feb 10 2017 Trip spans 7 days
Major Airline
Major Airline
PHL
8:05a
SEA
7:30p
11h 25m
1 stop
SEA
7:50p
PHL
6:39a
10h 49m
1 stop
Depart: Mon Apr 10 2017 Return: Tue Apr 18 2017 Trip spans 9 days
JetBlue
JetBlue
PHL
10:32a
SEA
9:47p
11h 15m
1 stop
SEA
7:38p
PHL
6:56a
11h 18m
1 stop
Depart: Tue Jan 24 2017 Return: Thu Jan 26 2017 Trip spans 3 days
Frontier
Frontier
PHL
1:00a
SEA
4:02p
15h 02m
1 stop
SEA
5:10a
PHL
1:57p
8h 47m
1 stop
Depart: Sat Dec 10 2016 Return: Wed Dec 14 2016 Trip spans 5 days
Spirit Airlines
Spirit Airlines
PHL
1:40a
SEA
6:34p
16h 54m
1 stop
SEA
1:00a
PHL
11:50a
10h 50m
1 stop
Depart: Sun Jan 22 2017 Return: Tue Jan 24 2017 Trip spans 3 days
American Airlines
American Airlines
PHL
2:50a
SEA
10:59a
8h 09m
1 stop
SEA
3:15a
PHL
8:20a
5h 05m
nonstop
Depart: Wed Feb 15 2017 Return: Mon Feb 27 2017 Trip spans 13 days
Major Airline
Major Airline
PHL
12:17a
SEA
3:23p
15h 06m
1 stop
SEA
8:00p
PHL
6:49a
10h 49m
1 stop
Direct flights PHL to SEA on Delta
Flight # Depart PHL Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
9185 5:35 pm 8:45 pm Jan 8 - Jan 14
9185 5:35 pm 8:45 pm Dec 31 - Jan 10
9185 5:35 pm 8:45 pm Dec 9 - Dec 18
9185 5:35 pm 8:45 pm Dec 19 - Dec 24
9185 5:35 pm 8:45 pm Dec 21 - Dec 29
9185 5:35 pm 8:45 pm Dec 12 - Dec 14
9185 5:35 pm 8:45 pm Dec 30 - Jan 5
* 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
$244
Destination

Seattle
$244
Airlines Airline reviews

25 travelers who booked a flight from Philadelphia to Seattle rated their chosen airlines with an average of 7.1.

Overall
7.3
Boarding
7.8
Crew
8.2
Comfort
7.0
Food
6.3
Entertainment
6.0