Cheap flights Philadelphia — Seattle (PHL — SEA)

Good to know - Cheap tickets Philadelphia — Seattle

Cheapest flight found $107
Minimal flight time 5h 55m
Flight distance 3820 km
Most popular airline Alaska 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
December 2025
November 2025
October 2025
September 2025
August 2025
July 2025
June 2025
May 2025
April 2025
March 2025
January 2025
December 2024

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
06:45 09:42 wed, thu, fri, sat, sun AS446 Alaska Airlines 5h 57m Philadelphia International Airport — Seattle-Tacoma International Airport Select dates
07:00 09:56 mon, tue, wed, sat AS446 Alaska Airlines 5h 56m Philadelphia International Airport — Seattle-Tacoma International Airport Select dates
07:04 09:59 mon, wed, thu, fri AS446 Alaska Airlines 5h 55m Philadelphia International Airport — Seattle-Tacoma International Airport Select dates
07:20 10:20 tue, thu, sat, sun AS446 Alaska Airlines 6h 0m Philadelphia International Airport — Seattle-Tacoma International Airport Select dates
08:10 11:12 wed, fri AA2870 American Airlines 6h 2m Philadelphia International Airport — Seattle-Tacoma International Airport Select dates
08:10 11:05 thu AA2870 American Airlines 5h 55m Philadelphia International Airport — Seattle-Tacoma International Airport Select dates
17:46 20:56 mon, sun AS443 Alaska Airlines 6h 10m Philadelphia International Airport — Seattle-Tacoma International Airport Select dates
18:25 21:51 daily AS443 Alaska Airlines 6h 26m Philadelphia International Airport — Seattle-Tacoma International Airport Select dates
18:35 21:43 mon, wed, sat AA2001 American Airlines 6h 8m Philadelphia International Airport — Seattle-Tacoma International Airport Select dates
18:45 21:50 mon, thu, fri, sat, sun AA2001 American Airlines 6h 5m Philadelphia International Airport — Seattle-Tacoma International Airport Select dates
All routes

Dynamics airfare Philadelphia — Seattle by month for the last year

according to LowCost.Club for the last year

The airfare depends on the departure date. Our chart shows the low season prices on route Philadelphia — Seattle

The graph shows that booking flights Philadelphia — Seattle is best planned for July and flights Philadelphia — Seattle — Philadelphia in the month of November.

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 $79.

The price of the flight Philadelphia — Seattle (United States) — Philadelphia from $79 (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 55m.

LowCostClub always do a comparison of airfares Philadelphia — Seattle with several airlines (include Alaska Airlines, American Airlines). 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 $79 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:

Popular domestic routes from Philadelphia

FAQ about Philadelphia — Seattle

Yes, they do: AS446, AA2870, AS443, AA2001

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 depart from Philadelphia on mon, tue, wed, thu, fri, sat, sun. There are non-direct flights through Aer Lingus, Aeromexico, Air Canada (Star Alliance Livery), British Airways, Delta Air Lines, FedEx, Frontier (Kit the Kermode Bear Livery), Jet Linx Aviation, JetBlue, Kalitta Charters, Lufthansa, NetJets, New Pacific Airlines, Phoenix Air, Qatar Executive, Southwest Airlines (Lone Star One Livery), Spirit Airlines, Sun Country Airlines, Tradewind Aviation, TUI, United Airlines, UPS.

A direct flight lasts an average of 5h 55m, 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: AS446, AS446, AS446, AS446, AA2870, AA2870, AS443, AS443, AA2001, AA2001, AA2001, AS443, AS443, AS443, AA2001

High season is considered to be November and the cheapest month is July. 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.

All the following airlines flights Philadelphia — Seattle: Aer Lingus, Aeromexico, Air Canada (Star Alliance Livery), Alaska Airlines, American Airlines, British Airways, Delta Air Lines, FedEx, Frontier (Kit the Kermode Bear Livery), Jet Linx Aviation, JetBlue, Kalitta Charters, Lufthansa, NetJets, New Pacific Airlines, Phoenix Air, Qatar Executive, Southwest Airlines (Lone Star One Livery), Spirit Airlines, Sun Country Airlines, Tradewind Aviation, TUI, United Airlines, UPS.

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