Cheap flights Philadelphia — Seattle (PHL — SEA)

Good to know - Cheap tickets Philadelphia — Seattle

Cheapest flight found $107
Minimal flight time 5h 48m
Flight distance 3820 km
Most popular airline American Airlines

Airfare Philadelphia – Seattle by month

Here you can find out in what months how much a ticket Philadelphia – Seattle costs to buy cheap plane tickets.

Month One-way Round-trip
January 2026
December 2025
November 2025
October 2025
September 2025
August 2025
July 2025
June 2025
May 2025
April 2025
March 2025
January 2025

Remember that the optimal time for booking air tickets is 59 days before the departure date, this is the average time at which air tickets were sold at the lowest prices.

Schedule of direct flights Philadelphia — Seattle

Departure Arrival Flight days Flight Airlines Flight time Airports
07:00 10:04 daily AS370 Alaska Airlines 6h 4m Philadelphia International Airport — Seattle-Tacoma International Airport Select dates
08:09 11:03 mon, tue, thu, fri, sat, sun AA2086 American Airlines 5h 54m Philadelphia International Airport — Seattle-Tacoma International Airport Select dates
08:10 11:04 daily AA2870 American Airlines 5h 54m Philadelphia International Airport — Seattle-Tacoma International Airport Select dates
09:00 12:00 mon, wed, thu, fri, sun AA2870 American Airlines 6h 0m Philadelphia International Airport — Seattle-Tacoma International Airport Select dates
09:00 11:48 sat DL8953 Delta Air Lines 5h 48m Philadelphia International Airport — Boeing Field International Airport Select dates
14:05 16:56 sat 5X5974 UPS 5h 51m Philadelphia International Airport — Boeing Field International Airport Select dates
18:18 21:24 mon, tue, wed, fri, sat, sun AS443 Alaska Airlines 6h 6m Philadelphia International Airport — Seattle-Tacoma International Airport Select dates
18:35 21:50 mon, tue, thu, fri, sun AA2361 American Airlines 6h 15m Philadelphia International Airport — Seattle-Tacoma International Airport Select dates
18:40 21:59 wed, thu, sat AA2361 American Airlines 6h 19m Philadelphia International Airport — Seattle-Tacoma International Airport Select dates
18:44 21:59 mon, thu AS443 Alaska Airlines 6h 15m Philadelphia International Airport — Seattle-Tacoma International Airport Select dates
All routes

Flights Philadelphia — Seattle

The selection of cheap flights Philadelphia — Seattle

Here you can find and purchase the cheapest flights Philadelphia — Seattle from $107 and Philadelphia — Seattle — Philadelphia from $78.

The price of the flight Philadelphia — Seattle (United States) — Philadelphia from $78 (round-trip).

The average price of the flight Philadelphia — Seattle (United States) — Philadelphia $397 (round-trip).

Low cost flights Philadelphia — Seattle (PHL — SEA)

The distance between Philadelphia and Seattle 2374 miles (or 3820 kilometres).

The time difference between Philadelphia and Seattle is 3 h.

Minimal flight time from Philadelphia to Seattle 5h 48m.

LowCostClub always do a comparison of airfares Philadelphia — Seattle with several airlines (include Alaska Airlines, American Airlines, Delta Air Lines). They will always give you all available options so you can find the cheapest flight to Seattle. In addition, you can choose the platform where you want to place your orders. There are also special offers for air tickets Philadelphia — Seattle. Last week, for instance, the cheapest round-trip prices stood at $78 while the cheapest one-way price that was available within the last week cost $107

Routes from nearby cities to Seattle

A flight from a neighbouring city can help you save money on plane tickets.

The most frequent flight to Seattle is from New York. The cheapest airfare can be purchased with a flight from Washington from $69. The nearest airports from Philadelphia with a flight to Seattle are in State College.

Popular International routes from Philadelphia

Popular routes from Seattle

If you are going to fly from Seattle, then study the popular flights. The most popular flights from Seattle:

FAQ about Philadelphia — Seattle

Yes, they do: AS370, AA2086, AA2870, DL8953, 5X5974, AS443, AA2361

Yes, you can fly from Philadelphia to Seattle. Philadelphia has 5 airports (Mustin Alf, North Philadelphia, Philadelphia Sea Plane Base, Philadelphia International Airport, Trenton-Mercer Airport) for flights. Alaska Airlines, American Airlines, Delta Air Lines, UPS, AlphaSky depart from Philadelphia on mon, tue, wed, thu, fri, sat, sun. There are non-direct flights through Aer Lingus, Aeromexico, Air Canada, Ameriflight, Atlas Air, British Airways, FedEx, Frontier (Luis the Axolotl Livery), Jet Linx Aviation, NetJets, Phoenix Air, Southwest Airlines, Sun Country Airlines, Tradewind Aviation, TUI, United Airlines.

A direct flight lasts an average of 5h 48m, during which time the aircraft covers a distance of 3820 km.

The price of flights Philadelphia — Seattle starts from $107.

Planes fly Philadelphia — Seattle 7 times a week on the following days: mon, tue, wed, thu, fri, sat, sun

In Philadelphia — Mustin Alf, North Philadelphia, Philadelphia Sea Plane Base, Philadelphia International Airport, Trenton-Mercer Airport. In Seattle — Boeing Field International Airport, Kenmore Air Harbor SPB, Seattle-Tacoma International Airport.

The following flights fly between Philadelphia and Seattle: AS370, AA2086, AA2870, AA2870, DL8953, 5X5974, AS443, AA2361, AA2361, AS443, AA2361, AS443, AS443, AS443

High season is considered to be and the cheapest month is . Enter your preferred airports (or cities) and dates into the search form above to unlock the latest Philadelphia — Seattle flight deals.

The following airlines have direct flights Philadelphia — Seattle: Alaska Airlines, American Airlines, Delta Air Lines, UPS, AlphaSky.

All the following airlines flights Philadelphia — Seattle: Aer Lingus, Aeromexico, Air Canada, Alaska Airlines, AlphaSky, American Airlines, Ameriflight, Atlas Air, British Airways, Delta Air Lines, FedEx, Frontier (Luis the Axolotl Livery), Jet Linx Aviation, NetJets, Phoenix Air, Southwest Airlines, Sun Country Airlines, Tradewind Aviation, TUI, United Airlines, UPS.

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