Fare Guide

Estimated lowest fares found within 7 days

Cheapest Airline Frontier Airlines

The cheapest airline(s) flying from Seattle to Philadelphia is Frontier Airlines.

  • Frontier Airlines Frontier Airlines
  • Spirit Airlines Spirit Airlines
  • Delta Air Lines Delta Air Lines
  • American Airlines American Airlines
  • Alaska Airlines Alaska Airlines
  • United Airlines United Airlines
Cheapest Month September

Travel Period: July 2024 - June 2025

The cheapest month(s) to fly from Seattle to Philadelphia is September.

  • Jul 2024
  • Aug 2024
  • Sep 2024
  • Oct 2024
  • Nov 2024
  • Dec 2024
  • Jan 2025
  • Feb 2025
  • Mar 2025
  • Apr 2025
  • May 2025
  • Jun 2025
Cheapest Day of the Week Tuesday

The cheapest day(s) of the week to fly from Seattle to Philadelphia is Tuesday.

  • Sun Sunday
  • Mon Monday
  • Tue Tuesday
  • Wed Wednesday
  • Thu Thursday
  • Fri Friday
  • Sat Saturday
Cheapest Time 7pm

The cheapest time of the day to fly from Seattle to Philadelphia is in the evening.

Early Morning 12:01am - 06:00am
Morning 6:01am - 12:00pm
Afternoon 12:01pm - 6:00pm
Evening 6:01pm to 12:00am
12am
6am
12pm
6pm

Flight Schedules

Last Updated: Sun, 2 Jun, 2024

  • Depart Earliest
    • Earliest
    • Latest
  • Arrive
    • Earliest
    • Latest
  • Airline Filter by Airline
    All
  • Total Duration
    • Shortest
    • Longest
  • Stopover
    All
  • Availability
    • M
    • T
    • W
    • T
    • F
    • S
    • S
  • 21:45 - 06:01+ 1
    SEA - PHL
  • 21:45 (SEA)Seattle/Tacoma International Airport
  • 06:01 (PHL)Philadelphia International Airport + 1
  • Alaska Airlines (AS 371)Boeing 737
  • 5h 16m
  • Direct
    • M
    • T
    • W
    • T
    • F
    • S
    • S
  • Boeing 737
  • 22:54 - 07:00+ 1
    SEA - PHL
  • 22:54 (SEA)Seattle/Tacoma International Airport
  • 07:00 (PHL)Philadelphia International Airport + 1
  • American Airlines (AA 2361)Airbus A321 Neo
  • 5h 06m
  • Direct
    • M
    • T
    • W
    • T
    • F
    • S
    • S
  • Airbus A321 Neo
  • 07:55 - 16:11
    SEA - PHL
  • 07:55 (SEA)Seattle/Tacoma International Airport
  • 16:11 (PHL)Philadelphia International Airport
  • Alaska Airlines (AS 442)Boeing 737
  • 5h 16m
  • Direct
    • M
    • T
    • W
    • T
    • F
    • S
    • S
  • Boeing 737
  • 11:59 - 20:05
    SEA - PHL
  • 11:59 (SEA)Seattle/Tacoma International Airport
  • 20:05 (PHL)Philadelphia International Airport
  • American Airlines (AA 2870)Airbus A321 Neo
  • 5h 06m
  • Direct
    • M
    • T
    • W
    • T
    • F
    • S
    • S
  • Airbus A321 Neo
No Schedules Sorry, there are no schedules matching your filters. Try removing one. reset
What’s the fastest flight time from Seattle to Philadelphia?

The fastest flight time for direct flights from Seattle to Philadelphia is 5 hours 6 minutes. Check latest flight schedules & prices on Wego.

How far is Philadelphia from Seattle?

The flight distance between Seattle and Philadelphia is 3820km. Check all available flights on Wego.

When is the earliest and latest flight of the day?

The earliest flight of the day departs at 07:55. The last flight of the day departs at 21:45. See the full list of flight times on Wego.

How many airlines offer direct flights from Seattle to Philadelphia?

There are 2 airlines that offer direct flights from Seattle to Philadelphia. Find out the list of airlines on Wego.