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Philadelphia International Airport to Seattle Tacoma Intl. Airport flight

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

      • Cheapest nonstop
        PHL 6:45 PM
        6h 14m
        Nonstop
        SEA 9:59 PM
        Philadelphia - Seattle | Sun, Jul 5 | Delta Air Lines
        SEA 9:20 PM
        5h 9m
        Nonstop
        PHL 5:29 AM
        Seattle - Philadelphia | Wed, Jul 8 | Delta Air Lines
        SEK 3,116 SEK 3,459
        10% off
        10% off
        SEK 3,459 SEK 3,116
      • PHL 6:45 PM
        6h 14m
        Nonstop
        SEA 9:59 PM
        Philadelphia - Seattle | Sat, Jun 20 | Delta Air Lines
        SEA 9:25 AM
        5h 10m
        Nonstop
        PHL 5:35 PM
        Seattle - Philadelphia | Tue, Jun 23 | Delta Air Lines
        SEK 3,117 SEK 3,459
        10% off
        10% off
        SEK 3,459 SEK 3,117
      • PHL 7:00 AM
        5h 56m
        Nonstop
        SEA 9:56 AM
        Philadelphia - Seattle | Sun, Aug 16 | Delta Air Lines
        SEA 9:29 PM
        5h 11m
        Nonstop
        PHL 5:40 AM
        Seattle - Philadelphia | Sat, Aug 22 | Delta Air Lines
        SEK 3,120 SEK 3,459
        10% off
        10% off
        SEK 3,459 SEK 3,120
      • PHL 6:45 PM
        6h 14m
        Nonstop
        SEA 9:59 PM
        Philadelphia - Seattle | Thu, Jun 18 | Delta Air Lines
        SEA 9:25 AM
        5h 10m
        Nonstop
        PHL 5:35 PM
        Seattle - Philadelphia | Thu, Jun 25 | Delta Air Lines
        SEK 3,130
        10% off
        SEK 3,459 SEK 3,130
      • PHL 7:05 AM
        5h 56m
        Nonstop
        SEA 10:01 AM
        Philadelphia - Seattle | Sun, Aug 2 | Delta Air Lines
        SEA 9:29 PM
        5h 11m
        Nonstop
        PHL 5:40 AM
        Seattle - Philadelphia | Sat, Aug 8 | Delta Air Lines
        SEK 3,131
        9% off
        SEK 3,459 SEK 3,131
      • PHL 6:45 PM
        6h 14m
        Nonstop
        SEA 9:59 PM
        Philadelphia - Seattle | Mon, Jun 29 | Delta Air Lines
        SEA 9:25 AM
        5h 10m
        Nonstop
        PHL 5:35 PM
        Seattle - Philadelphia | Sun, Jul 5 | Delta Air Lines
        SEK 3,145
        9% off
        SEK 3,459 SEK 3,145
      • PHL 7:05 AM
        5h 56m
        Nonstop
        SEA 10:01 AM
        Philadelphia - Seattle | Wed, Jul 22 | Delta Air Lines
        SEA 9:20 PM
        5h 9m
        Nonstop
        PHL 5:29 AM
        Seattle - Philadelphia | Wed, Jul 29 | Delta Air Lines
        SEK 3,147
        9% off
        SEK 3,459 SEK 3,147
      • PHL 8:37 PM
        15h 40m
        1 stop
        SEA 9:17 AM
        Philadelphia - Seattle | Fri, Jul 10 | Frontier Airlines
        SEA 7:06 PM
        13h 43m
        1 stop
        PHL 11:49 AM
        Seattle - Philadelphia | Wed, Jul 15 | Frontier Airlines
        SEK 2,544
        26% off
        SEK 3,459 SEK 2,544
      • PHL 12:44 PM
        24h 5m
        1 stop
        SEA 9:49 AM
        Philadelphia - Seattle | Mon, Jul 13 | Frontier Airlines
        SEA 9:20 PM
        5h 9m
        Nonstop
        PHL 5:29 AM
        Seattle - Philadelphia | Fri, Jul 17 | Delta Air Lines
        SEK 2,843
        18% off
        SEK 3,459 SEK 2,843
      • PHL 11:06 AM
        26h 33m
        1 stop
        SEA 10:39 AM
        Philadelphia - Seattle | Thu, Jul 16 | Frontier Airlines
        SEA 8:13 PM
        30h 47m
        1 stop
        PHL 6:00 AM
        Seattle - Philadelphia | Wed, Jul 22 | Frontier Airlines
        SEK 2,867
        17% off
        SEK 3,459 SEK 2,867
      • PHL 1:00 PM
        17h 25m
        1 stop
        SEA 2:00 PM
        Philadelphia - Seattle | Fri, Jun 19 | Normal Airline
        SEA 3:00 PM
        6h
        Nonstop
        PHL 4:00 PM
        Seattle - Philadelphia | Sun, Jun 21 | Normal Airline
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      • Cheapest nonstop
        PHL 7:05 AM
        5h 56m
        Nonstop
        SEA 10:01 AM
        Philadelphia - Seattle | Wed, Jul 29 | Delta Air Lines
        SEK 1,564 SEK 1,722
        9% off
        9% off
        SEK 1,722 SEK 1,564
      • PHL 6:45 PM
        6h 14m
        Nonstop
        SEA 9:59 PM
        Philadelphia - Seattle | Sun, Jul 5 | Delta Air Lines
        SEK 1,564 SEK 1,722
        9% off
        9% off
        SEK 1,722 SEK 1,564
      • PHL 7:05 AM
        5h 56m
        Nonstop
        SEA 10:01 AM
        Philadelphia - Seattle | Thu, Jul 30 | Delta Air Lines
        SEK 1,565 SEK 1,722
        9% off
        9% off
        SEK 1,722 SEK 1,565
      • PHL 7:05 AM
        5h 56m
        Nonstop
        SEA 10:01 AM
        Philadelphia - Seattle | Wed, Aug 12 | Delta Air Lines
        SEK 1,567
        9% off
        SEK 1,722 SEK 1,567
      • PHL 6:00 AM
        11h 30m
        1 stop
        SEA 2:30 PM
        Philadelphia - Seattle | Wed, Jul 22 | United Airlines
        SEK 1,277
        26% off
        SEK 1,722 SEK 1,277
      • PHL 6:00 AM
        11h 24m
        1 stop
        SEA 2:24 PM
        Philadelphia - Seattle | Wed, Aug 12 | United Airlines
        SEK 1,281
        26% off
        SEK 1,722 SEK 1,281
      • PHL 11:06 AM
        26h 29m
        1 stop
        SEA 10:35 AM
        Philadelphia - Seattle | Thu, Jul 2 | Frontier Airlines
        SEK 1,299
        25% off
        SEK 1,722 SEK 1,299
      • PHL 11:00 AM
        26h 35m
        1 stop
        SEA 10:35 AM
        Philadelphia - Seattle | Sun, Jun 21 | Frontier Airlines
        SEK 1,306
        24% off
        SEK 1,722 SEK 1,306
      • PHL 11:00 AM
        26h 35m
        1 stop
        SEA 10:35 AM
        Philadelphia - Seattle | Thu, Jun 18 | Frontier Airlines
        SEK 1,317
        24% off
        SEK 1,722 SEK 1,317
      • PHL 8:37 PM
        15h 27m
        1 stop
        SEA 9:04 AM
        Philadelphia - Seattle | Tue, Aug 11 | Frontier Airlines
        SEK 1,420
        18% off
        SEK 1,722 SEK 1,420
      • PHL 1:00 PM
        17h 25m
        1 stop
        SEA 2:00 PM
        Philadelphia - Seattle | Fri, Jun 19 | Normal Airline
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Displayed flight fares from Philadelphia International Airport to Seattle Tacoma Intl. 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 Intl. Airport

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

Data is based on average one-way flight prices from Philadelphia International Airport to Seattle Tacoma Intl. 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 Intl. Airport, the best time to buy is in March, with an average price of SEK 1,556. You’ll want to avoid July, when the average price can reach as high as SEK 3,576.

SEK 3,576
SEK 2,566
SEK 1,556
SEK 546
    Cheapest
  • SEK 2,776
    Jun
  • SEK 3,576
    Jul
  • SEK 2,615
    Aug
  • SEK 1,959
    Sep
  • SEK 2,285
    Oct
  • SEK 2,400
    Nov
  • SEK 2,887
    Dec
  • SEK 1,705
    Jan
  • SEK 2,559
    Feb
  • SEK 1,556
    Mar
  • SEK 3,074
    Apr
  • SEK 2,523
    May

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

The data is based on the past 12 months and shows the average ticket prices from Philadelphia International Airport to Seattle Tacoma Intl. 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 Intl. 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.

SEK 3,105
SEK 2,176
SEK 1,246
SEK 317
  • SEK 2,636
    Mon
  • SEK 1,246
    Tue
  • SEK 2,339
    Wed
  • SEK 2,337
    Thu
  • SEK 2,777
    Fri
  • SEK 2,190
    Sat
  • SEK 3,105
    Sun

Selected Airlines from Philadelphia International Airport to Seattle Tacoma Intl. 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 SEK 1,277
Frontier Airlines
From SEK 1,299
Delta Air Lines
From SEK 1,564
American Airlines
From SEK 1,597
Alaska Airlines
From SEK 1,824
Sun Country Airlines
From SEK 2,448
Qatar Airways
From SEK 4,634

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Flight Schedule from Philadelphia International Airport to Seattle Tacoma Intl. 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

    7:05 AM

    PHL

    5h 50m

    9:55 AM

    SEA

    S M T W T - S
    Search

  2. AA2522

    Philadelphia International Airport

    6:17 PM

    PHL

    6h 18m

    9:35 PM

    SEA

    S M T W T F S
    Search

  3. AA3259

    Philadelphia International Airport

    7:35 PM

    PHL

    6h 23m

    10:58 PM

    SEA

    S M T W T F S
    Search

  4. DL2022

    Philadelphia International Airport

    6:53 PM

    PHL

    4h 57m

    Nonstop

    9:50 PM

    SLC

    S - - W T - S
    Search

  5. DL2998

    Salt Lake City International Airport

    10:45 PM

    SLC

    2h 26m

    Nonstop

    12:11 AM

    SEA

    S - - W T - S

  6. DL2594

    Philadelphia International Airport

    6:57 PM

    PHL

    3h 4m

    Nonstop

    9:01 PM

    MSP

    S M T W T - S
    Search

  7. DL505

    Minneapolis-Saint Paul International Airport

    9:55 PM

    MSP

    4h

    Nonstop

    11:55 PM

    SEA

    S - - W T - S

  8. DL2688

    Philadelphia International Airport

    11:41 AM

    PHL

    2h 49m

    Nonstop

    1:30 PM

    MSP

    S M T W T F S
    Search

  9. DL505

    Minneapolis-Saint Paul International Airport

    9:55 PM

    MSP

    4h

    Nonstop

    11:55 PM

    SEA

    S - - W T - S

  10. AS1461

    Philadelphia International Airport

    5:15 PM

    PHL

    5h 51m

    Nonstop

    8:06 PM

    PDX

    S M T W T F S
    Search

  11. AS3408

    Portland International Airport

    3:30 PM

    PDX

    1h

    Nonstop

    4:30 PM

    SEA

    S M T W T F S

  12. DL2279

    Philadelphia International Airport

    2:12 PM

    PHL

    2h 15m

    Nonstop

    4:27 PM

    ATL

    S M T W T F S
    Search

  13. DL714

    Hartsfield-Jackson Atlanta International Airport

    6:10 PM

    ATL

    5h 36m

    Nonstop

    8:46 PM

    SEA

    S M T W T F S

  14. DL2131

    Philadelphia International Airport

    4:10 PM

    PHL

    2h 15m

    Nonstop

    6:25 PM

    ATL

    S M T W T F S
    Search

  15. DL903

    Hartsfield-Jackson Atlanta International Airport

    9:35 PM

    ATL

    5h 34m

    Nonstop

    12:09 AM

    SEA

    S M T W T F S

  16. DL1100

    Philadelphia International Airport

    10:40 AM

    PHL

    2h 14m

    Nonstop

    12:54 PM

    ATL

    S M T W T - S
    Search

  17. DL472

    Hartsfield-Jackson Atlanta International Airport

    4:25 PM

    ATL

    5h 34m

    Nonstop

    6:59 PM

    SEA

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

Flight distance3,821.03 km
Cheapest one-way ticket priceSEK 1,277
Cheapest return ticket priceSEK 2,544

FAQs for Philadelphia International Airport to Seattle Tacoma Intl. Airport Flights

  • How long is a flight from Philadelphia International Airport to Seattle Tacoma Intl. Airport?

    It takes around 6 hours 9 minutes to fly from Philadelphia International Airport (phl) to Seattle Tacoma Intl. Airport (sea).
  • There are around 4 daily flights from Philadelphia International Airport (PHL) to Seattle Tacoma Intl. Airport (SEA).
  • Tickets cost around SEK 2,951 in July, making it the cheapest month to book. Philadelphia International Airport (PHL) to Seattle Tacoma Intl. 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 Intl. Airport (SEA) is quite popular. Without considering departure times or holidays, tickets cost around SEK 3,458 in June, the most expensive month to book this route.
  • The earliest flight departs from Philadelphia International Airport (PHL) at 07:02 and arrives in Seattle Tacoma Intl. Airport (SEA) at 10:13.
  • The latest flight departs from Philadelphia International Airport (PHL) at 19:12 and arrives in Seattle Tacoma Intl. Airport (SEA) at 22:30.
    • The distance from Seattle-Tacoma International Airport to downtown is about 17 km. It takes about 30 minutes by taxi.
  • American Airlines is a very popular airline operating an average of 812 flights per month.

Popular Destinations

Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.