Cheap flights from Philadelphia to Seattle

Round-trip
Economy
Philadelphia (PHL)
Seattle (SEA)
Mon 8/10
Mon 8/17
Any month
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Flight information for Philadelphia to Seattle

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Seattle
Best Price Found $65 The best flight deal from Philadelphia to Seattle found on momondo in the last 72 hours is $65
Fastest flight time 6h 7m The fastest flight from Philadelphia to Seattle takes 6h 7m.
Direct flights Tu and Th Direct flights go from Philadelphia to Seattle on Tuesday and Thursday. Airline offering direct flights is Alaska Airlines..
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)

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 June
What is the cheapest day to fly to Seattle?
Wednesday
The cheapest day of the week is typically Wednesday. The most expensive is typically Sunday
When is the cheapest time to fly to Seattle?
in the evening
Philadelphia to Seattle flights are approximately 24% more expensive in the afternoon than in the evening
What is the cheapest airline that flies to Seattle?
Spirit Airlines
Spirit Airlines, Sun Country Air, and Frontier 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?
60 days before
The cheapest time to buy a flight from Philadelphia to Seattle is approximately 60 days to departure
60
Days before departure
0

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
Cheapest
Best
Quickest
Spirit Airlines
Aug 19
PHL
Philadelphia
8h 53m
1 stop
SEA
Seattle/Tacoma Intl
Aug 26
SEA
Seattle/Tacoma Intl
24h 29m
1 stop
PHL
Philadelphia
Multiple Airlines
Aug 11
PHL
Philadelphia
8h 53m
1 stop
SEA
Seattle/Tacoma Intl
Aug 13
SEA
Seattle/Tacoma Intl
28h 34m
2 stops
PHL
Philadelphia
Spirit Airlines
Aug 8
PHL
Philadelphia
8h 53m
1 stop
SEA
Seattle/Tacoma Intl
Aug 10
SEA
Seattle/Tacoma Intl
11h 56m
2 stops
PHL
Philadelphia

Find the cheapest one-way flights from Philadelphia to Seattle

If you're looking for one-way flights from Philadelphia to Seattle, view some of our deals below provided by Spirit Airlines
Cheapest
Best
Quickest
Spirit Airlines
Aug 11
PHL
Philadelphia
8h 53m
1 stop
SEA
Seattle/Tacoma Intl
Multiple Airlines
Jul 14
PHL
Philadelphia
74h 01m
1 stop
SEA
Seattle/Tacoma Intl
Spirit Airlines
Aug 10
PHL
Philadelphia
8h 53m
1 stop
SEA
Seattle/Tacoma Intl

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
Pittsburgh to Spokane Flights
Fastest flight time
9h 06m
Cheapest price
$183
Philadelphia to Spokane Flights
Fastest flight time
7h 08m
Cheapest price
$201
Harrisburg to Spokane Flights
Fastest flight time
11h 31m
Cheapest price
$385

Flights from Philadelphia to:

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Economy
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Economy
  • Economy
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  • First
Economy
  • Economy
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  • First