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Philadelphia International Airport to Seattle flight
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Cheap Flights from Philadelphia International Airport to Seattle

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

  • One way
  • Round-trip
sortSort by: Lowest Price
  • Sort by: Lowest Price
  • Sort by: Earliest Flight
      • PHL13:25
        22h 20m
        1 stop
        SEA08:45
        Philadelphia - Seattle|Tue, May 7|Spirit Airlines
        $81$142
        43% OFF
        43% OFF
        $142$81
      • PHL18:57
        5h 58m
        Direct
        SEA21:55
        Philadelphia - Seattle|Mon, Apr 29|Alaska Airlines
        $84$142
        41% OFF
        41% OFF
        $142$84
      • PHL20:27
        13h 37m
        1 stop
        SEA07:04
        Philadelphia - Seattle|Sat, May 18|Frontier Airlines
        $84$142
        41% OFF
        41% OFF
        $142$84
      • PHL06:00
        20h 55m
        1 stop
        SEA23:55
        Philadelphia - Seattle|Tue, May 21|Frontier Airlines
        $85
        $85
      • PHL20:40
        23h 18m
        1 stop
        SEA16:58
        Philadelphia - Seattle|Tue, May 7|Frontier Airlines
        $85
        $85
      • PHL20:40
        27h 20m
        1 stop
        SEA21:00
        Philadelphia - Seattle|Tue, May 14|Frontier Airlines
        $88
        $88
      • PHL22:13
        13h 21m
        1 stop
        SEA08:34
        Philadelphia - Seattle|Mon, Apr 29|Frontier Airlines
        $92
        $92
      • PHL11:50
        23h 40m
        2 stops
        SEA08:30
        Philadelphia - Seattle|Wed, May 22|Sun Country Airlines
        $95
        $95
      • PHL22:13
        25h 22m
        2 stops
        SEA20:35
        Philadelphia - Seattle|Mon, May 13|Frontier Airlines
        $95
        $95
      • PHL20:30
        16h 58m
        1 stop
        SEA10:28
        Philadelphia - Seattle|Wed, Jun 5|Frontier Airlines
        $95
        $95
      • PHL13:00
        3h 5m
        Direct
        SEA14:00
        Philadelphia - Seattle|Sun, May 5|Spirit Airlines
        Find More Flights
        Find More Flights

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

Selected Airlines from Philadelphia International Airport to Seattle

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

Spirit Airlines
From $81
Sun Country Airlines
From $95
American Airlines
From $113
Delta Air Lines
From $130
United Airlines
From $142
Southwest Airlines
From $179
Jetblue Airways
From $196
Frontier Airlines
From $255
Alaska Airlines
From $401
ANA airlines
Find more flights and airlines

There are 1 airport(s) in Seattle. Discover the top routes now!

Learn about different airports in Seattle, find the best flight and transfer options, and plan your journey.

  • 0.7 km from downtown Seattle
    Seattle-Tacoma International Airport
    Tickets From
    $255
Flight Schedule from Philadelphia International Airport to Seattle

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

Flight info.
Departure
Arrival
Weekly Schedule

  1. UA1586

    United Airlines

    07:05

    PHL

    4.3h

    09:21

    DEN

    SMT--FS
    Search

  2. F93405

    Frontier Airlines

    19:08

    DEN

    3.0h

    21:08

    SEA

    --T----

  3. AS370

    Alaska Airlines

    07:07

    PHL

    6.0h

    Direct

    10:07

    SEA

    SMTWTFS
    Search

  4. AA1313

    American Airlines

    08:59

    PHL

    4.2h

    11:12

    DEN

    SMTWT-S
    Search

  5. F91175

    Frontier Airlines

    06:35

    DEN

    3.0h

    08:37

    SEA

    S----F-

  6. UA347

    United Airlines

    10:00

    PHL

    4.1h

    12:04

    DEN

    SMT-TFS
    Search

  7. F91815

    Frontier Airlines

    18:25

    DEN

    3.2h

    20:35

    SEA

    -M-----

  8. AA015

    American Airlines

    10:50

    PHL

    4.3h

    13:06

    DEN

    SMTWTFS
    Search

  9. F94647

    Frontier Airlines

    19:55

    DEN

    3.2h

    22:05

    SEA

    S----F-

  10. F94367

    Frontier Airlines

    17:11

    PHL

    2.2h

    18:24

    MDW

    S-T-T--
    Search

  11. AS333

    Alaska Airlines

    06:00

    ORD

    4.5h

    08:31

    SEA

    SMTWTFS

  12. F93985

    Frontier Airlines

    18:38

    PHL

    3.7h

    21:18

    DFW

    SMTWTFS
    Search

  13. F92549

    Frontier Airlines

    16:00

    DFW

    2.3h

    17:18

    DEN

    SMT-TF-

  14. F94647

    Frontier Airlines

    19:55

    DEN

    3.2h

    22:05

    SEA

    S----F-

  15. DL2758

    Delta Air Lines

    18:55

    PHL

    5.0h

    21:57

    SLC

    S--WT-S
    Search

  16. DL639

    Delta Air Lines

    23:15

    SLC

    2.3h

    00:34

    SEA

    S--WT-S

  17. AS443

    Alaska Airlines

    18:59

    PHL

    6.0h

    Direct

    21:59

    SEA

    SMTWTFS
    Search

  18. F94815

    Frontier Airlines

    23:13

    PHL

    2.3h

    00:30

    MDW

    -M-W--S
    Search

  19. AS333

    Alaska Airlines

    06:00

    ORD

    4.5h

    08:31

    SEA

    SMTWTFS
Find more flights and airlines

Flight Info of Flights from Philadelphia International Airport to Seattle

Cheapest round-trip ticket price

$169

Cheapest nonstop flight price

$81

Off-season for travel

December

Peak season for travel

October

FAQs for Philadelphia International Airport to Seattle Flights

  • What is the transportation method from the main airport to downtown in Seattle?

    • The distance from Seattle-Tacoma International Airport to downtown is about 17km. It takes about 30 minutes by taxi.

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