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Philadelphia International Airport to Seattle-Tacoma International Airport flight

Search for flights from Philadelphia to Seattle and check out affordable one-way and round-trip options.

      • Cheapest nonstop
        PHL 18:45
        6h 14m
        Nonstop
        SEA 21:59
        Philadelphia - Seattle | Sat, Jul 4 | Delta Air Lines
        SEA 21:20
        5h 9m
        Nonstop
        PHL 05:29
        Seattle - Philadelphia | Tue, Jul 7 | Delta Air Lines
        AED 1,222 AED 1,635
        25% off
        25% off
        AED 1,635 AED 1,222
      • PHL 18:45
        6h 14m
        Nonstop
        SEA 21:59
        Philadelphia - Seattle | Fri, Jun 19 | Delta Air Lines
        SEA 09:25
        5h 10m
        Nonstop
        PHL 17:35
        Seattle - Philadelphia | Mon, Jun 22 | Delta Air Lines
        AED 1,223 AED 1,635
        25% off
        25% off
        AED 1,635 AED 1,223
      • PHL 18:45
        6h 14m
        Nonstop
        SEA 21:59
        Philadelphia - Seattle | Wed, Jun 17 | Delta Air Lines
        SEA 09:25
        5h 10m
        Nonstop
        PHL 17:35
        Seattle - Philadelphia | Wed, Jun 24 | Delta Air Lines
        AED 1,228 AED 1,635
        25% off
        25% off
        AED 1,635 AED 1,228
      • PHL 07:05
        5h 56m
        Nonstop
        SEA 10:01
        Philadelphia - Seattle | Sat, Aug 1 | Delta Air Lines
        SEA 21:29
        5h 11m
        Nonstop
        PHL 05:40
        Seattle - Philadelphia | Fri, Aug 7 | Delta Air Lines
        AED 1,228
        25% off
        AED 1,635 AED 1,228
      • PHL 18:45
        6h 14m
        Nonstop
        SEA 21:59
        Philadelphia - Seattle | Sun, Jun 28 | Delta Air Lines
        SEA 09:25
        5h 10m
        Nonstop
        PHL 17:35
        Seattle - Philadelphia | Sat, Jul 4 | Delta Air Lines
        AED 1,234
        25% off
        AED 1,635 AED 1,234
      • PHL 07:05
        5h 56m
        Nonstop
        SEA 10:01
        Philadelphia - Seattle | Tue, Jul 21 | Delta Air Lines
        SEA 21:20
        5h 9m
        Nonstop
        PHL 05:29
        Seattle - Philadelphia | Tue, Jul 28 | Delta Air Lines
        AED 1,234
        25% off
        AED 1,635 AED 1,234
      • PHL 19:35
        6h 21m
        Nonstop
        SEA 22:56
        Philadelphia - Seattle | Sat, Jul 4 | American Airlines
        SEA 21:20
        5h 9m
        Nonstop
        PHL 05:29
        Seattle - Philadelphia | Tue, Jul 7 | Delta Air Lines
        AED 1,238
        24% off
        AED 1,635 AED 1,238
      • PHL 19:35
        6h 23m
        Nonstop
        SEA 22:58
        Philadelphia - Seattle | Tue, Jun 16 | American Airlines
        SEA 09:25
        5h 10m
        Nonstop
        PHL 17:35
        Seattle - Philadelphia | Fri, Jun 19 | Delta Air Lines
        AED 1,242
        24% off
        AED 1,635 AED 1,242
      • PHL 12:44
        24h 5m
        1 stop
        SEA 09:49
        Philadelphia - Seattle | Sun, Jul 12 | Frontier Airlines
        SEA 21:20
        5h 9m
        Nonstop
        PHL 05:29
        Seattle - Philadelphia | Thu, Jul 16 | Delta Air Lines
        AED 1,115
        32% off
        AED 1,635 AED 1,115
      • PHL 06:25
        9h
        1 stop
        SEA 12:25
        Philadelphia - Seattle | Tue, Jun 16 | Delta Air Lines
        SEA 09:25
        5h 10m
        Nonstop
        PHL 17:35
        Seattle - Philadelphia | Fri, Jun 19 | Delta Air Lines
        AED 1,242
        24% off
        AED 1,635 AED 1,242
      • PHL 13:00
        17h 25m
        1 stop
        SEA 14:00
        Philadelphia - Seattle | Wed, Jun 17 | Normal Airline
        SEA 15:00
        6h
        Nonstop
        PHL 16:00
        Seattle - Philadelphia | Fri, Jun 19 | Normal Airline
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      • Cheapest nonstop
        PHL 07:05
        5h 56m
        Nonstop
        SEA 10:01
        Philadelphia - Seattle | Tue, Jul 28 | Delta Air Lines
        AED 614 AED 835
        26% off
        26% off
        AED 835 AED 614
      • PHL 18:45
        6h 14m
        Nonstop
        SEA 21:59
        Philadelphia - Seattle | Sat, Jul 4 | Delta Air Lines
        AED 614 AED 835
        26% off
        26% off
        AED 835 AED 614
      • PHL 07:05
        5h 56m
        Nonstop
        SEA 10:01
        Philadelphia - Seattle | Wed, Jul 29 | Delta Air Lines
        AED 614 AED 835
        26% off
        26% off
        AED 835 AED 614
      • PHL 18:17
        6h 18m
        Nonstop
        SEA 21:35
        Philadelphia - Seattle | Tue, Jun 30 | American Airlines
        AED 627
        25% off
        AED 835 AED 627
      • PHL 19:35
        6h 21m
        Nonstop
        SEA 22:56
        Philadelphia - Seattle | Sat, Jul 11 | American Airlines
        AED 630
        25% off
        AED 835 AED 630
      • PHL 06:00
        11h 30m
        1 stop
        SEA 14:30
        Philadelphia - Seattle | Tue, Jul 21 | United Airlines
        AED 501
        40% off
        AED 835 AED 501
      • PHL 20:37
        15h 40m
        1 stop
        SEA 09:17
        Philadelphia - Seattle | Mon, Aug 3 | Frontier Airlines
        AED 525
        37% off
        AED 835 AED 525
      • PHL 20:37
        15h 27m
        1 stop
        SEA 09:04
        Philadelphia - Seattle | Mon, Aug 10 | Frontier Airlines
        AED 557
        33% off
        AED 835 AED 557
      • PHL 18:55
        8h 4m
        1 stop
        SEA 23:59
        Philadelphia - Seattle | Mon, Jul 20 | Delta Air Lines
        AED 634
        24% off
        AED 835 AED 634
      • PHL 18:57
        8h 2m
        1 stop
        SEA 23:59
        Philadelphia - Seattle | Fri, Jul 3 | Delta Air Lines
        AED 634
        24% off
        AED 835 AED 634
      • PHL 13:00
        17h 25m
        1 stop
        SEA 14:00
        Philadelphia - Seattle | Wed, Jun 17 | Normal Airline
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Displayed flight fares from Philadelphia International Airport to Seattle-Tacoma International Airport are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Trip.com Price Insights: Flights from Philadelphia International Airport to Seattle-Tacoma International Airport

What is the cheapest month for one-way flights from Philadelphia International Airport to Seattle-Tacoma International Airport?

Data is based on average one-way flight prices from Philadelphia International Airport to Seattle-Tacoma International Airport in Trip.com's database over the past 12 months.

Based on Trip.com’s data from the past 12 months, if you’re looking for a low-cost one-way ticket from Philadelphia International Airport to Seattle-Tacoma International Airport, the best time to buy is in March, with an average price of AED 611. You’ll want to avoid July, when the average price can reach as high as AED 1,403.

AED 1,403
AED 1,007
AED 611
AED 215
    Cheapest
  • AED 1,089
    Jun
  • AED 1,403
    Jul
  • AED 1,026
    Aug
  • AED 769
    Sep
  • AED 896
    Oct
  • AED 942
    Nov
  • AED 1,133
    Dec
  • AED 669
    Jan
  • AED 1,004
    Feb
  • AED 611
    Mar
  • AED 1,206
    Apr
  • AED 990
    May

What is the cheapest day of the week to fly from Philadelphia International Airport to Seattle-Tacoma International Airport?

The data is based on the past 12 months and shows the average ticket prices from Philadelphia International Airport to Seattle-Tacoma International Airport for each day of the week in the Trip.com database.

Based on Trip.com’s data from the past 12 months, the cheapest day to depart from Philadelphia International Airport to Seattle-Tacoma International Airport is Tuesday, with average fares typically lower than other days. You’ll want to avoid flying on Sunday, as ticket prices are usually the highest that day.

AED 1,245
AED 867
AED 489
AED 111
  • AED 1,034
    Mon
  • AED 489
    Tue
  • AED 921
    Wed
  • AED 917
    Thu
  • AED 1,115
    Fri
  • AED 859
    Sat
  • AED 1,245
    Sun

Selected Airlines from Philadelphia International Airport to Seattle-Tacoma International Airport

See which airlines fly from Philadelphia to Seattle. Find the airline that best meets your travel needs by comparing prices and treat yourself to an enjoyable journey.

United Airlines
From AED 501
Frontier Airlines
From AED 525
Delta Air Lines
From AED 614
American Airlines
From AED 627
Alaska Airlines
From AED 716
Hahn Air
From AED 721
Sun Country Airlines
From AED 809
Qatar Airways
From AED 1,910

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Flight Schedule from Philadelphia International Airport to Seattle-Tacoma International Airport

Check the schedule for flights from Philadelphia to Seattle and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule

  1. DL2092

    Philadelphia International Airport

    07:05

    PHL

    5h 50m

    09:55

    SEA

    S M T W T - S
    Search

  2. AA2522

    Philadelphia International Airport

    18:17

    PHL

    6h 18m

    21:35

    SEA

    S M T W T F S
    Search

  3. AA3259

    Philadelphia International Airport

    19:35

    PHL

    6h 23m

    22:58

    SEA

    S M T W T F S
    Search

  4. DL2594

    Philadelphia International Airport

    18:57

    PHL

    3h 4m

    Nonstop

    21:01

    MSP

    S M T W T - S
    Search

  5. DL505

    Minneapolis-Saint Paul International Airport

    21:55

    MSP

    4h

    Nonstop

    23:55

    SEA

    S - - W T - S

  6. DL2688

    Philadelphia International Airport

    11:45

    PHL

    2h 59m

    Nonstop

    13:44

    MSP

    S M T W T F S
    Search

  7. DL505

    Minneapolis-Saint Paul International Airport

    21:55

    MSP

    4h

    Nonstop

    23:55

    SEA

    S - - W T - S

  8. DL2022

    Philadelphia International Airport

    18:53

    PHL

    4h 57m

    Nonstop

    21:50

    SLC

    S - - W T - S
    Search

  9. DL2998

    Salt Lake City International Airport

    22:45

    SLC

    2h 26m

    Nonstop

    00:11

    SEA

    S - - W T - S

  10. DL1391

    Philadelphia International Airport

    17:15

    PHL

    1h 47m

    Nonstop

    19:02

    DTW

    S M T W T F S
    Search

  11. DL565

    Detroit Metropolitan Wayne County Airport

    19:55

    DTW

    5h 10m

    Nonstop

    22:05

    SEA

    S M T W T F S

  12. AS1461

    Philadelphia International Airport

    17:15

    PHL

    5h 51m

    Nonstop

    20:06

    PDX

    S M T W T F S
    Search

  13. AS3408

    Portland International Airport

    15:30

    PDX

    1h

    Nonstop

    16:30

    SEA

    S M T W T F S

  14. DL2131

    Philadelphia International Airport

    16:10

    PHL

    2h 15m

    Nonstop

    18:25

    ATL

    S M T W T F S
    Search

  15. DL903

    Hartsfield-Jackson Atlanta International Airport

    21:35

    ATL

    5h 34m

    Nonstop

    00:09

    SEA

    S M T W T F S

  16. DL1100

    Philadelphia International Airport

    10:21

    PHL

    2h 15m

    Nonstop

    12:36

    ATL

    S M T W T - S
    Search

  17. DL472

    Hartsfield-Jackson Atlanta International Airport

    16:25

    ATL

    5h 34m

    Nonstop

    18:59

    SEA

    S M T W T F S
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Philadelphia International Airport to Seattle-Tacoma International Airport Flights Info

Flight distance3,821.03 km
Cheapest one-way ticket priceAED 501
Cheapest return ticket priceAED 1,115

FAQs for Philadelphia International Airport to Seattle-Tacoma International Airport Flights

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

    It takes around 6 hours 19 minutes to fly from Philadelphia International Airport (phl) to Seattle-Tacoma International Airport (sea).
  • There are around 3 daily flights from Philadelphia International Airport (PHL) to Seattle-Tacoma International Airport (SEA).
  • Tickets cost around AED 1,197 in July, making it the cheapest month to book. Philadelphia International Airport (PHL) to Seattle-Tacoma International Airport (SEA) is a popular route, so don't forget to book your tickets in advance.
  • The route from Philadelphia International Airport (PHL) to Seattle-Tacoma International Airport (SEA) is quite popular. Without considering departure times or holidays, tickets cost around AED 2,072 in August, the most expensive month to book this route.
  • The earliest flight departs from Philadelphia International Airport (PHL) at 07:20 and arrives in Seattle-Tacoma International Airport (SEA) at 10:12.
  • The latest flight departs from Philadelphia International Airport (PHL) at 19:10 and arrives in Seattle-Tacoma International Airport (SEA) at 22:26.
    • The distance from Seattle-Tacoma International Airport to downtown is about 17 km, by taxi about 30 minutes.
  • American Airlines is a very popular airline operating an average of 812 flights per month.

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