Take off on cheap flights from Seattle to Philadelphia, your adventure starts now!

Find cheap airline tickets from Seattle to Philadelphia by date

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  • May 2018
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  • price
  • month of departure
  • month of return
$411
outward: Aug 4, 2018
4:00a SEA » 12:20p PHL
Frontier Airlines 1 stop (8h20m)
inbound: Aug 13, 2018
6:35p PHL » 4:40a SEA
Frontier Airlines 1 stop (10h05m)
$412
outward: Jun 19, 2018
5:12a SEA » 6:58p PHL
Spirit Airlines 1 stop (13h46m)
inbound: Jun 22, 2018
11:00p PHL » 9:02a SEA
Frontier Airlines 1 stop (10h02m)
$419
outward: Aug 4, 2018
4:00a SEA » 12:20p PHL
Frontier Airlines 1 stop (8h20m)
inbound: Aug 13, 2018
6:35p PHL » 4:40a SEA
Frontier Airlines 1 stop (10h05m)
Return
Departure
Find the cheapest Seattle Philadelphia flight by browsing the dates below to find alternative flight prices found in the last days. To launch a flight search for Seattle - Philadelphia with these new dates, click on an offer. Want to depart from another city? Choose: Las Vegas - Philadelphia New York - Philadelphia London - Philadelphia Miami - Philadelphia Chicago - Philadelphia San Francisco - Philadelphia See more routes

Airlines operating flights from Seattle to Philadelphia

  • any
  • May 2018
  • June 2018
  • July 2018
  • August 2018
  • September 2018
  • October 2018
  • November 2018
  • December 2018
  • January 2019
  • February 2019
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  • April 2019
  • all
  • Alaska Airlines
  • Frontier Airlines
  • United Airlines
Frontier Airlines
outbound: Jun 18, 2018
Frontier Airlines 1 stop
return: Jun 22, 2018
Frontier Airlines 1 stop
Alaska Airlines
outbound: Jun 18, 2018
Alaska Airlines 1 stop
return: Jun 22, 2018
United Airlines 1 stop
United Airlines
outbound: Jun 18, 2018
United Airlines 1 stop
return: Jun 22, 2018
United Airlines 1 stop

Travel tips for flights Seattle - Philadelphia

Average flight duration: 9h12m (flight with stopovers)

  • Arrival city:
  • Philadelphia, USA
  • Airport(s):
  • Philadelphia International Airport (PHL)
  • Northeast Philadelphia Airport (PNE)
  • Local time:
  • May 24, 2018 3:41 PM, GMT-4
  • Departure city:
  • Seattle, USA
  • Airport(s):
  • Kenmore Air Harbor Seaplane Base (LKE)
  • Seattle–Tacoma International Airport (SEA)
  • Local time:
  • May 24, 2018 12:41 PM, GMT-7