Cheap Flight Deals from Philadelphia to Seattle

We've found these cheap flights for you. You can book one-way or return flight tickets.

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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Flight Information from Philadelphia to Seattle

Cheapest one-way flight price	AU$ 117
Cheapest return ticket price	AU$ 381
Off-season for travel	March
Peak season for travel	January
Flight distance	3,816.94km
Average flight time	6 hours 34 minutes
Popular airline	American Airlines

Best Time to Book Flights from Philadelphia to Seattle

We monitor flight fares to help you find the best deals effortlessly

Cheapest flights

From price

20 27
May

27 4
4 11
11 18
18 25
Jun

25 1
1 8
8 15
15 22
22 29
Jul

29 6
6 13

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

FAQ

When are flight from Philadelphia (PHL) to Seattle (SEA) the cheapest?

Airlines adjust prices for flights from Philadelphia to Seattle based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much are flights from Philadelphia (PHL) to Seattle (SEA) cost?

According to Trip.com's data, the lowest price is around AU$ 590.
How long is the flights from Philadelphia (PHL) to Seattle (SEA)?

It takes about 6 hours 34 minutes to fly from Philadelphia (PHL) to Seattle (SEA).
What are the most popular airlines that fly from Philadelphia (PHL) to Seattle (SEA)?

Airlines with flights from Philadelphia (PHL) to Seattle (SEA): Air Tahiti Nui, Alaska Airlines, British Airways, Hawaiian Airlines, American Airlines, Qatar Airways, Finnair and Southwest Airlines.
How many airports in Seattle (SEA)?

There are 3 airport(s) in Seattle (SEA): King County (Boeing Field) International Airport, Lake Union Sea Plane Base and Seattle–Tacoma International Airport.

How to find a cheap flight from Philadelphia to Seattle

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Philadelphia to Seattle. Book your flights at the right time and save more.

Book Early

Once prices are gone, they're gone. Lock in deals while you can!

Compare Flight Prices

Compare prices on travel agency and airline websites.

Look Out for Deals

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Check One-way Fares

Buying two cheap one-way flights can sometimes be a better deal than a round-trip.

Try Different Dates

Flying during the week, early in the morning, or late at night can help save money.

Use the Trip.com App

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