Cheap flights from Philadelphia to Seattle

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Easily compare round-trip flights from Philadelphia to Seattle

Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Philadelphia to Seattle by changing tabs
Quickest
Cheapest
Spirit Airlines
Spirit Airlines
15 Jan
3:20 pm
PHL
Philadelphia airport
23h 07m
1 Stop
SEA
11:27 am
+1
Seattle/Tacoma Intl airport
Spirit Airlines
20 Jan
9:20 am
SEA
Seattle/Tacoma Intl airport
23h 14m
1 Stop
PHL
11:34 am
+1
Philadelphia airport
208 USD
Frontier
Frontier
29 Jan
4:47 am
PHL
Philadelphia airport
11h 32m
1 Stop
SEA
1:19 pm
Seattle/Tacoma Intl airport
Frontier
02 Feb
10:10 pm
SEA
Seattle/Tacoma Intl airport
10h 24m
1 Stop
PHL
11:34 am
+1
Philadelphia airport
213 USD
Spirit Airlines
Spirit Airlines
23 Jan
3:20 pm
PHL
Philadelphia airport
23h 07m
1 Stop
SEA
11:27 am
+1
Seattle/Tacoma Intl airport
Spirit Airlines
27 Jan
10:10 pm
SEA
Seattle/Tacoma Intl airport
10h 24m
1 Stop
PHL
11:34 am
+1
Philadelphia airport
221 USD
Delta
Delta
09 Jan
9:30 am
PHL
Philadelphia airport
10h 17m
1 Stop
SEA
4:47 pm
Seattle/Tacoma Intl airport
Delta
16 Jan
2:41 pm
SEA
Seattle/Tacoma Intl airport
4h 59m
PHL
10:40 pm
Philadelphia airport
306 USD
American Airlines
American Airlines
06 Feb
1:20 pm
PHL
Philadelphia airport
6h 21m
SEA
4:41 pm
Seattle/Tacoma Intl airport
American Airlines
08 Feb
4:30 pm
SEA
Seattle/Tacoma Intl airport
9h 25m
1 Stop
PHL
4:55 am
+1
Philadelphia airport
306 USD
Alaska Airlines
Alaska Airlines
18 Jan
11:55 am
PHL
Philadelphia airport
6h 15m
SEA
3:10 pm
Seattle/Tacoma Intl airport
Alaska Airlines
22 Jan
10:10 pm
SEA
Seattle/Tacoma Intl airport
10h 24m
1 Stop
PHL
11:34 am
+1
Philadelphia airport
238 USD

How to get the cheapest flight ticket from Philadelphia to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Seattle?
February
The cheapest time of year to fly to Seattle from Philadelphia is February. Most expensive is December
What is the cheapest day to fly to Seattle?
Tuesday
The cheapest day of the week is typically Tuesday. The most expensive is typically Sunday
When is the cheapest time to fly to Seattle?
at noon
Philadelphia to Seattle flights are approximately 24% more expensive in the afternoon than at noon
What is the cheapest airline that flies to Seattle?
Spirit Airlines
Spirit Airlines, Frontier, and Sun Country Air are the most popular carriers operating from Philadelphia to Seattle
What is the cheapest route?
Philadelphia - Seattle/Tacoma Intl
Fly from Philadelphia to Seattle/Tacoma Intl for the best Philadelphia - Seattle flight prices
PHL
Philadelphia
SEA
Seattle/Tacoma Intl
When is the cheapest time to book a flight to Seattle?
28 days before
The cheapest time to buy a flight from Philadelphia to Seattle is approximately 28 days to departure
60
Days before departure
0

Flight information for Philadelphia to Seattle (03A - PHL)

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Seattle
Fastest flight time 6h 12m The fastest flight from Philadelphia to Seattle takes 6h 12m.
Direct flights Every day Direct flights go from Philadelphia to Seattle every day.
Airports in Seattle 3 airports There are 3 airports near Seattle: Seattle King County/Boeing (BFI), Seattle Lake Union Spb (LKE), Seattle/Tacoma Intl (SEA)

Alternative routes for Philadelphia to Seattle

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Philadelphia to Portland
Fastest flight time
6h 06m
Cheapest price
169 USD
New York to Seattle
Fastest flight time
5h 50m
Cheapest price
173 USD
New York to Portland
Fastest flight time
6h 05m
Cheapest price
187 USD
Baltimore to Seattle
Fastest flight time
5h 45m
Cheapest price
210 USD
Washington to Seattle
Fastest flight time
5h 31m
Cheapest price
217 USD
Washington to Portland
Fastest flight time
5h 55m
Cheapest price
220 USD
Baltimore to Portland
Fastest flight time
5h 45m
Cheapest price
220 USD
View more

Flights from Philadelphia to: