Trip.com
>
Cheap Flights
>
United States
>
Washington
>
Seattle
>
Flights from Philadelphia to Seattle

Flight deals from Philadelphia to Seattle

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

  • Round-trip
  • One way

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

Find the best time to fly from Philadelphia to Seattle

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

Cheapest flights
From price
Search

  • 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.

Airlines Flying from Philadelphia to Seattle

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.
Alaska Airlines logo Alaska Airlines American Airlines logo American Airlines Delta Air Lines logo Delta Air Lines

FAQ

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

    Airlines adjust prices for flights from Philadelphia to Seattle based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that 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 NZD 662.

  • How long does it take to fly from Philadelphia (PHL) to Seattle (SEA) and what is the distance?

    It takes around 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 Intl. Airport to downtown is about 17 km. It takes about 30 minutes by taxi.

  • 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.

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
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Information from Philadelphia to Seattle

Cheapest one-way flight price NZD 152
Cheapest round-trip ticket price NZD 401
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

Popular Flights

  • Top Routes from Philadelphia
  • Top Routes to Seattle
  • More flight options