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Flights from Philadelphia to Seattle

Cheap flight deals from Philadelphia to Seattle

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

  • Round-trip
  • One way

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

When is the cheapest time to fly from Philadelphia to Seattle?

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

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  • Apr

    30 6
  • 6 13
  • 13 20
  • 20 27

  • May

    27 4
  • 4 11
  • 11 18
  • 18 25

  • Jun

    25 1
  • 1 8
  • 8 15
  • 15 22
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets 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 do flights from Philadelphia (PHL) to Seattle (SEA) cost?

    According to Trip.com's data, the lowest price is around AED 1,385.

  • How long does it take to fly from Philadelphia (PHL) to Seattle (SEA)?

    It takes about 6 hours 23 minutes to fly from Philadelphia (PHL) to Seattle (SEA).

  • What is the transportation method from the main airport to downtown in Seattle?

    • The distance from Seattle-Tacoma International Airport to downtown is about 17 km, by taxi about 30 minutes.

  • 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, United Airlines and Qatar Airways.

  • What's the most popular airline for non-stop flights from Philadelphia (PHL) to Seattle (SEA)?

    Alaska Airlines operates 2 non-stop flights from Philadelphia (PHL) to Seattle (SEA).

  • How many airports are there in Seattle (SEA)?

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.
1
Being flexible with your dates to get the cheapest Philadelphia to Seattle ticket.
Tap "Date" on flight search bar to scan through the calender for Philadelphia to Seattle airfare over next 6 months in 2025. If you would like to fly in next 3 months, it seems the cheapest date is on Thu, Apr 24 at AED 521 for one-way flights.
2
Compare cheap Philadelphia to Seattle flight deals from over hundreds of airlines.
Our extensive search allows you to compare prices from over 500 airlines to choose the cheapest flight tickets from Philadelphia to Seattle. The cheapest airline operating is American Airlines.
3
Set up a Price Alert
By setting up a Price Alert for your Philadelphia to Seattle route, you can easily track the price of your airline tickets from without manually checking every day.
4
Don't miss cheap Philadelphia to Seattle flight deals and promo codes.
You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights. If registering a free membership, you can receive more deals for your flights.
5
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
6
Search for flights on the go.
To get the best flight booking experience on the go, download Trip.com and search for cheap flight tickets from Philadelphia to Seattle to get exclusive deals for you.

Flight Info | Philadelphia to Seattle

Cheapest one-way flight price AED 345
Cheapest return ticket price AED 838
Off-season for travel March
Peak season for travel June
Flight distance 3,816.94 km
Average flight time 6 hours 23 minutes
Popular airline Alaska Airlines

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