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Pittsburgh International Airport to Seattle-Tacoma International Airport flight

Explore the cheapest one-way and round-trip flights from Pittsburgh International Airport to Seattle-Tacoma International Airport over the next 90 days, with one-way fares from TWD 4,007 and round-trip from TWD 7,158. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        PIT 07:02
        5h 12m
        Direct
        SEA 09:14
        Pittsburgh - Seattle | Sat, Sep 26 | Alaska Airlines
        SEA 21:44
        4h 41m
        Direct
        PIT 05:25
        Seattle - Pittsburgh | Sun, Sep 27 | Alaska Airlines
        TWD 12,518 TWD 14,337
        13% off
        13% off
        TWD 14,337 TWD 12,518
      • PIT 08:07
        5h 20m
        Direct
        SEA 10:27
        Pittsburgh - Seattle | Wed, Oct 7 | Alaska Airlines
        SEA 12:49
        4h 46m
        Direct
        PIT 20:35
        Seattle - Pittsburgh | Wed, Oct 14 | Alaska Airlines
        TWD 13,046 TWD 14,337
        9% off
        9% off
        TWD 14,337 TWD 13,046
      • PIT 09:57
        8h 47m
        1 stop
        SEA 15:44
        Pittsburgh - Seattle | Wed, Nov 11 | American Airlines
        SEA 10:47
        7h 18m
        1 stop
        PIT 21:05
        Seattle - Pittsburgh | Sat, Nov 14 | American Airlines
        TWD 7,158 TWD 14,337
        50% off
        50% off
        TWD 14,337 TWD 7,158
      • PIT 06:00
        9h 9m
        1 stop
        SEA 12:09
        Pittsburgh - Seattle | Sat, Oct 10 | American Airlines
        SEA 13:25
        8h 6m
        1 stop
        PIT 00:31
        Seattle - Pittsburgh | Wed, Oct 14 | American Airlines
        TWD 7,162
        50% off
        TWD 14,337 TWD 7,162
      • PIT 05:00
        7h 58m
        1 stop
        SEA 09:58
        Pittsburgh - Seattle | Fri, Oct 9 | American Airlines
        SEA 23:59
        8h 6m
        1 stop
        PIT 11:05
        Seattle - Pittsburgh | Tue, Oct 13 | American Airlines
        TWD 7,832
        45% off
        TWD 14,337 TWD 7,832
      • PIT 14:35
        8h 32m
        1 stop
        SEA 20:07
        Pittsburgh - Seattle | Fri, Oct 2 | American Airlines
        SEA 21:42
        7h 54m
        1 stop
        PIT 08:36
        Seattle - Pittsburgh | Tue, Oct 6 | American Airlines
        TWD 7,832
        45% off
        TWD 14,337 TWD 7,832
      • PIT 14:35
        8h 32m
        1 stop
        SEA 20:07
        Pittsburgh - Seattle | Sat, Oct 3 | American Airlines
        SEA 22:48
        8h 15m
        1 stop
        PIT 10:03
        Seattle - Pittsburgh | Sat, Oct 10 | American Airlines
        TWD 7,832
        45% off
        TWD 14,337 TWD 7,832
      • PIT 17:48
        8h 22m
        1 stop
        SEA 23:10
        Pittsburgh - Seattle | Fri, Oct 30 | American Airlines
        SEA 12:38
        7h 22m
        1 stop
        PIT 23:00
        Seattle - Pittsburgh | Wed, Nov 4 | American Airlines
        TWD 8,089
        44% off
        TWD 14,337 TWD 8,089
      • PIT 13:02
        10h 13m
        1 stop
        SEA 20:15
        Pittsburgh - Seattle | Thu, Oct 15 | American Airlines
        SEA 12:49
        7h 46m
        1 stop
        PIT 23:35
        Seattle - Pittsburgh | Sun, Oct 18 | American Airlines
        TWD 8,308
        42% off
        TWD 14,337 TWD 8,308
      • PIT 06:00
        8h 39m
        1 stop
        SEA 11:39
        Pittsburgh - Seattle | Fri, Oct 16 | American Airlines
        SEA 11:17
        7h 12m
        1 stop
        PIT 21:29
        Seattle - Pittsburgh | Sat, Oct 24 | American Airlines
        TWD 8,503
        41% off
        TWD 14,337 TWD 8,503
      • PIT 13:00
        17h 25m
        1 stop
        SEA 14:00
        Pittsburgh - Seattle | Mon, Sep 21 | Normal Airline
        SEA 15:00
        6h
        Direct
        PIT 16:00
        Seattle - Pittsburgh | Wed, Sep 23 | Normal Airline
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      • Cheapest nonstop
        PIT 18:14
        5h 20m
        Direct
        SEA 20:34
        Pittsburgh - Seattle | Tue, Nov 3 | Alaska Airlines
        TWD 7,091 TWD 7,897
        10% off
        10% off
        TWD 7,897 TWD 7,091
      • PIT 18:28
        5h 11m
        Direct
        SEA 20:39
        Pittsburgh - Seattle | Wed, Sep 30 | Alaska Airlines
        TWD 7,186 TWD 7,897
        9% off
        9% off
        TWD 7,897 TWD 7,186
      • PIT 16:11
        9h 45m
        1 stop
        SEA 22:56
        Pittsburgh - Seattle | Sun, Oct 25 | United Airlines
        TWD 4,007 TWD 7,897
        49% off
        49% off
        TWD 7,897 TWD 4,007
      • PIT 14:43
        11h 14m
        1 stop
        SEA 22:57
        Pittsburgh - Seattle | Wed, Sep 23 | American Airlines
        TWD 4,021
        49% off
        TWD 7,897 TWD 4,021
      • PIT 13:02
        10h 12m
        1 stop
        SEA 20:14
        Pittsburgh - Seattle | Wed, Oct 21 | American Airlines
        TWD 4,202
        47% off
        TWD 7,897 TWD 4,202
      • PIT 05:00
        10h 18m
        1 stop
        SEA 12:18
        Pittsburgh - Seattle | Mon, Nov 2 | American Airlines
        TWD 4,249
        46% off
        TWD 7,897 TWD 4,249
      • PIT 06:00
        10h 35m
        1 stop
        SEA 13:35
        Pittsburgh - Seattle | Wed, Nov 11 | American Airlines
        TWD 4,249
        46% off
        TWD 7,897 TWD 4,249
      • PIT 13:02
        10h 13m
        1 stop
        SEA 20:15
        Pittsburgh - Seattle | Sat, Oct 31 | American Airlines
        TWD 4,249
        46% off
        TWD 7,897 TWD 4,249
      • PIT 06:00
        9h 9m
        1 stop
        SEA 12:09
        Pittsburgh - Seattle | Sun, Nov 1 | American Airlines
        TWD 4,249
        46% off
        TWD 7,897 TWD 4,249
      • PIT 13:00
        17h 25m
        1 stop
        SEA 14:00
        Pittsburgh - Seattle | Mon, Sep 21 | Normal Airline
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Flight prices from Pittsburgh International Airport to Seattle-Tacoma International Airport are based on the average fares across airlines for the next three months, based on Trip.com’s latest data.

Which airline offers the cheapest flights from Pittsburgh International Airport to Seattle-Tacoma International Airport?

The cheapest airline flying from Pittsburgh International Airport to Seattle-Tacoma International Airport is United Airlines (from TWD 4,007) among 6 carriers operating this route. Based on Trip.com's latest 7-day flight data.

United Airlines
From TWD 4,007
American Airlines
From TWD 4,021
Hahn Air
From TWD 4,596
Alaska Airlines
From TWD 7,091
Delta Air Lines
From TWD 7,139
Jetblue Airways
From TWD 16,981

Find more flights and airlines

What is the flight schedule from Pittsburgh International Airport to Seattle-Tacoma International Airport?

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

Flight info.
Departure
Arrival
Weekly Schedule

  1. AS412

    Pittsburgh International Airport

    08:02

    PIT

    5h 20m

    10:22

    SEA

    S M T W T F S
    Search

  2. AA376

    Pittsburgh International Airport

    06:53

    PIT

    1h 32m

    Direct

    08:25

    CLT

    S M T W T F S
    Search

  3. AA1833

    Charlotte Douglas International Airport

    15:16

    CLT

    5h 47m

    Direct

    18:03

    SEA

    S - T W T F -

  4. AA1715

    Pittsburgh International Airport

    18:33

    PIT

    1h 37m

    Direct

    20:10

    CLT

    S M T W T F S
    Search

  5. AA1674

    Charlotte Douglas International Airport

    20:15

    CLT

    5h 44m

    Direct

    22:59

    SEA

    - - - - - - S

  6. DL1188

    Pittsburgh International Airport

    16:38

    PIT

    4h 33m

    Direct

    19:11

    SLC

    S M T W T F S
    Search

  7. DL2998

    Salt Lake City International Airport

    21:10

    SLC

    2h 30m

    Direct

    22:40

    SEA

    S - - W T - S

  8. AA2664

    Pittsburgh International Airport

    15:17

    PIT

    2h 59m

    Direct

    17:16

    DFW

    S M T W T F S
    Search

  9. AA2009

    Dallas Fort Worth International Airport

    19:31

    DFW

    4h 21m

    Direct

    21:52

    SEA

    S M T W T F S

  10. UA3577

    Pittsburgh International Airport

    16:11

    PIT

    1h 49m

    Direct

    17:00

    ORD

    - - - W T - -
    Search

  11. UA2211

    O'Hare International Airport

    20:01

    ORD

    4h 44m

    Direct

    22:45

    SEA

    S M T W T F S

  12. UA436

    Pittsburgh International Airport

    17:48

    PIT

    5h 24m

    Direct

    20:12

    SFO

    S - - W T - S
    Search

  13. UA5579

    San Francisco International Airport

    22:45

    SFO

    2h 30m

    Direct

    01:15

    SEA

    - - - W T F -
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About Pittsburgh International Airport and Seattle-Tacoma International Airport

Learn about Pittsburgh International Airport (PIT) and Seattle-Tacoma International Airport (SEA) — including location, terminals, transportation, and travel tips.

Flight distance3,412.12km
Cheapest one-way ticket priceTWD 4,007
Cheapest return ticket priceTWD 7,158

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

  • How long is the flight from Pittsburgh International Airport to Seattle-Tacoma International Airport?

    Pittsburgh International Airport to Seattle-Tacoma International Airport takes about 5 hours on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 2 daily flights from Pittsburgh International Airport (PIT) to Seattle-Tacoma International Airport (SEA).
  • The earliest flight from Pittsburgh International Airport to Seattle-Tacoma International Airport departs at 07:02, and the last departs at 18:28, with about 2 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from Pittsburgh International Airport (PIT) to Seattle-Tacoma International Airport (SEA) is quite popular. Without considering departure times or holidays, tickets cost around TWD 14,538 in September, the most expensive month to book this route.
  • The earliest flight departs from Pittsburgh International Airport (PIT) at 07:00 and arrives in Seattle-Tacoma International Airport (SEA) at 09:08.
  • The latest flight departs from Pittsburgh International Airport (PIT) at 19:28 and arrives in Seattle-Tacoma International Airport (SEA) at 22:00.
    • The distance from Seattle-Tacoma International Airport to downtown is about 17km, by taxi about 30 minutes.
  • United Airlines is a very popular airline operating an average of 50 flights per month.
  • One-way flights from Pittsburgh International Airport to Seattle-Tacoma International Airport currently start from TWD 4,007, and round-trip fares start from TWD 7,158. The current lowest fare is a United Airlines flight departing on Sun, Oct 25; prices may vary depending on availability.
  • Yes. Alaska Airlines operate direct flights from Pittsburgh International Airport to Seattle-Tacoma International Airport, with an average flight time of 4 hours 54 minutes, and around 13 weekly flights. Actual flight frequency may vary by season.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from Pittsburgh International Airport to Seattle-Tacoma International Airport is TWD 7,160. Prices may vary depending on the departure date, airline, and availability.
  • Pittsburgh International Airport to Seattle-Tacoma International Airport operates around 9 weekly flights, mainly by Alaska Airlines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Pittsburgh International Airport and Seattle-Tacoma International Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

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

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Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are shown before payment. Charges for checked baggage, meals, Wi-Fi, and other optional services may also appear in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours, and with many routes refreshed in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.