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Tri Cities Airport to Seattle Tacoma Intl. Airport flight

Explore the cheapest one-way and round-trip flights from Tri Cities Airport to Seattle Tacoma Intl. Airport over the next 90 days, with one-way fares from $106 and round-trip from $112. Based on Trip.com's latest 7-day flight data.

    • Cheapest nonstop
      PSC 3:32 PM
      1h 13m
      Nonstop
      SEA 4:45 PM
      Pasco - Seattle | Fri, Nov 13 | Delta Air Lines
      SEA 10:39 AM
      1h 9m
      Nonstop
      PSC 11:48 AM
      Seattle - Pasco | Wed, Nov 18 | Delta Air Lines
      $112 $321
      65% off
      65% off
      $321 $112
    • PSC 12:35 PM
      1h 18m
      Nonstop
      SEA 1:53 PM
      Pasco - Seattle | Thu, Nov 19 | Delta Air Lines
      SEA 10:55 PM
      1h 4m
      Nonstop
      PSC 11:59 PM
      Seattle - Pasco | Sun, Nov 22 | Delta Air Lines
      $204 $321
      36% off
      36% off
      $321 $204
    • PSC 6:00 PM
      1h 12m
      Nonstop
      SEA 7:12 PM
      Pasco - Seattle | Fri, Nov 6 | Alaska Airlines
      SEA 9:14 AM
      1h 11m
      Nonstop
      PSC 10:25 AM
      Seattle - Pasco | Sun, Nov 8 | Alaska Airlines
      $237 $321
      26% off
      26% off
      $321 $237
    • PSC 1:55 PM
      1h 4m
      Nonstop
      SEA 2:59 PM
      Pasco - Seattle | Thu, Nov 5 | Alaska Airlines
      SEA 9:14 AM
      1h 11m
      Nonstop
      PSC 10:25 AM
      Seattle - Pasco | Sun, Nov 8 | Alaska Airlines
      $238
      26% off
      $321 $238
    • PSC 1:55 PM
      1h 4m
      Nonstop
      SEA 2:59 PM
      Pasco - Seattle | Sat, Nov 7 | Alaska Airlines
      SEA 9:14 AM
      1h 11m
      Nonstop
      PSC 10:25 AM
      Seattle - Pasco | Sun, Nov 8 | Alaska Airlines
      $253
      21% off
      $321 $253
    • PSC 3:51 PM
      1h 16m
      Nonstop
      SEA 5:07 PM
      Pasco - Seattle | Wed, Dec 16 | Delta Air Lines
      SEA 10:37 AM
      1h 18m
      Nonstop
      PSC 11:55 AM
      Seattle - Pasco | Wed, Dec 23 | Delta Air Lines
      $256
      20% off
      $321 $256
    • PSC 11:02 AM
      1h 14m
      Nonstop
      SEA 12:16 PM
      Pasco - Seattle | Sat, Nov 14 | Alaska Airlines
      SEA 12:10 PM
      1h 2m
      Nonstop
      PSC 1:12 PM
      Seattle - Pasco | Sun, Nov 15 | Alaska Airlines
      $259
      19% off
      $321 $259
    • PSC 3:23 PM
      1h 15m
      Nonstop
      SEA 4:38 PM
      Pasco - Seattle | Wed, Nov 18 | Delta Air Lines
      SEA 10:55 PM
      1h 4m
      Nonstop
      PSC 11:59 PM
      Seattle - Pasco | Sun, Nov 22 | Delta Air Lines
      $264
      18% off
      $321 $264
    • PSC 12:35 PM
      1h 18m
      Nonstop
      SEA 1:53 PM
      Pasco - Seattle | Sat, Nov 28 | Delta Air Lines
      SEA 1:32 PM
      1h 11m
      Nonstop
      PSC 2:43 PM
      Seattle - Pasco | Fri, Dec 4 | Delta Air Lines
      $268
      17% off
      $321 $268
    • PSC 1:00 PM
      17h 25m
      1 stop
      SEA 2:00 PM
      Pasco - Seattle | Fri, Nov 6 | Normal Airline
      SEA 3:00 PM
      6h
      Nonstop
      PSC 4:00 PM
      Seattle - Pasco | Sun, Nov 8 | Normal Airline
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    • Cheapest
      PSC 3:32 PM
      1h 13m
      Nonstop
      SEA 4:45 PM
      Pasco - Seattle | Sun, Nov 8 | Delta Air Lines
      $106 $172
      38% off
      38% off
      $172 $106
    • PSC 1:49 PM
      1h 7m
      Nonstop
      SEA 2:56 PM
      Pasco - Seattle | Sun, Nov 8 | Alaska Airlines
      $137 $526
      74% off
      74% off
      $526 $137
    • PSC 3:30 PM
      4h 51m
      1 stop
      SEA 8:21 PM
      Pasco - Seattle | Mon, Dec 14 | Alaska Airlines
      $139 $261
      47% off
      47% off
      $261 $139
    • PSC 4:12 PM
      1h 9m
      Nonstop
      SEA 5:21 PM
      Pasco - Seattle | Wed, Dec 2 | Alaska Airlines
      $149
      43% off
      $261 $149
    • PSC 4:12 PM
      1h 9m
      Nonstop
      SEA 5:21 PM
      Pasco - Seattle | Wed, Nov 25 | Alaska Airlines
      $149
      13% off
      $172 $149
    • PSC 3:46 PM
      1h 14m
      Nonstop
      SEA 5:00 PM
      Pasco - Seattle | Wed, Dec 23 | Alaska Airlines
      $164
      37% off
      $261 $164
    • PSC 5:34 PM
      1h 13m
      Nonstop
      SEA 6:47 PM
      Pasco - Seattle | Mon, Nov 16 | Alaska Airlines
      $166
      36% off
      $261 $166
    • PSC 5:20 AM
      5h 19m
      1 stop
      SEA 10:39 AM
      Pasco - Seattle | Thu, Nov 5 | Alaska Airlines
      $166
      36% off
      $261 $166
    • PSC 5:45 PM
      1h 14m
      Nonstop
      SEA 6:59 PM
      Pasco - Seattle | Wed, Dec 23 | Delta Air Lines
      $166
      36% off
      $261 $166
    • PSC 1:00 PM
      17h 25m
      1 stop
      SEA 2:00 PM
      Pasco - Seattle | Fri, Nov 6 | Normal Airline
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    • Cheapest nonstop
      PSC 3:32 PM
      1h 13m
      Nonstop
      SEA 4:45 PM
      Pasco - Seattle | Sun, Nov 8 | Delta Air Lines
      $106 $172
      38% off
      38% off
      $172 $106
    • PSC 1:49 PM
      1h 7m
      Nonstop
      SEA 2:56 PM
      Pasco - Seattle | Sun, Nov 8 | Alaska Airlines
      $137 $526
      74% off
      74% off
      $526 $137
    • PSC 4:12 PM
      1h 9m
      Nonstop
      SEA 5:21 PM
      Pasco - Seattle | Wed, Dec 2 | Alaska Airlines
      $149 $261
      43% off
      43% off
      $261 $149
    • PSC 4:12 PM
      1h 9m
      Nonstop
      SEA 5:21 PM
      Pasco - Seattle | Wed, Nov 25 | Alaska Airlines
      $149
      13% off
      $172 $149
    • PSC 3:46 PM
      1h 14m
      Nonstop
      SEA 5:00 PM
      Pasco - Seattle | Wed, Dec 23 | Alaska Airlines
      $164
      37% off
      $261 $164
    • PSC 5:34 PM
      1h 13m
      Nonstop
      SEA 6:47 PM
      Pasco - Seattle | Mon, Nov 16 | Alaska Airlines
      $166
      36% off
      $261 $166
    • PSC 5:45 PM
      1h 14m
      Nonstop
      SEA 6:59 PM
      Pasco - Seattle | Wed, Dec 23 | Delta Air Lines
      $166
      36% off
      $261 $166
    • PSC 12:35 PM
      1h 20m
      Nonstop
      SEA 1:55 PM
      Pasco - Seattle | Mon, Dec 14 | Delta Air Lines
      $168
      36% off
      $261 $168
    • PSC 3:33 PM
      1h 12m
      Nonstop
      SEA 4:45 PM
      Pasco - Seattle | Mon, Nov 16 | Delta Air Lines
      $171
      34% off
      $261 $171
    • PSC 1:00 PM
      17h 25m
      1 stop
      SEA 2:00 PM
      Pasco - Seattle | Fri, Nov 6 | Normal Airline
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    • Cheapest nonstop
      PSC 3:32 PM
      1h 13m
      Nonstop
      SEA 4:45 PM
      Pasco - Seattle | Sun, Nov 8 | Delta Air Lines
      $106 $355
      70% off
      70% off
      $355 $106
    • PSC 4:12 PM
      1h 9m
      Nonstop
      SEA 5:21 PM
      Pasco - Seattle | Wed, Nov 25 | Alaska Airlines
      $149 $355
      57% off
      57% off
      $355 $149
    • PSC 4:00 PM
      2h 40m
      1 stop
      SEA 6:40 PM
      Pasco - Seattle | Thu, Nov 5 | Alaska Airlines
      $229 $355
      35% off
      35% off
      $355 $229
    • PSC 4:00 PM
      2h 45m
      1 stop
      SEA 6:45 PM
      Pasco - Seattle | Tue, Nov 10 | Alaska Airlines
      $300
      15% off
      $355 $300
    • PSC 4:00 PM
      2h 45m
      1 stop
      SEA 6:45 PM
      Pasco - Seattle | Mon, Nov 9 | Alaska Airlines
      $308
      13% off
      $355 $308
    • PSC 1:00 PM
      17h 25m
      1 stop
      SEA 2:00 PM
      Pasco - Seattle | Fri, Nov 6 | Normal Airline
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    • Cheapest nonstop
      PSC 3:32 PM
      1h 13m
      Nonstop
      SEA 4:45 PM
      Pasco - Seattle | Sun, Nov 8 | Delta Air Lines
      $106 $355
      70% off
      70% off
      $355 $106
    • PSC 4:00 PM
      2h 40m
      1 stop
      SEA 6:40 PM
      Pasco - Seattle | Thu, Nov 5 | Alaska Airlines
      $229 $355
      35% off
      35% off
      $355 $229
    • PSC 4:00 PM
      2h 45m
      1 stop
      SEA 6:45 PM
      Pasco - Seattle | Tue, Nov 10 | Alaska Airlines
      $300 $355
      15% off
      15% off
      $355 $300
    • PSC 4:00 PM
      2h 45m
      1 stop
      SEA 6:45 PM
      Pasco - Seattle | Mon, Nov 9 | Alaska Airlines
      $308
      13% off
      $355 $308
    • PSC 1:00 PM
      17h 25m
      1 stop
      SEA 2:00 PM
      Pasco - Seattle | Fri, Nov 6 | Normal Airline
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    • PSC 1:49 PM
      1h 7m
      Nonstop
      SEA 2:56 PM
      Pasco - Seattle | Sun, Nov 8 | Alaska Airlines
      $137 $526
      74% off
      74% off
      $526 $137
    • PSC 6:01 AM
      1h 7m
      Nonstop
      SEA 7:08 AM
      Pasco - Seattle | Sun, Nov 8 | American Airlines
      $313 $526
      40% off
      40% off
      $526 $313
    • PSC 6:01 AM
      1h 7m
      Nonstop
      SEA 7:08 AM
      Pasco - Seattle | Tue, Nov 10 | Alaska Airlines
      $324 $526
      38% off
      38% off
      $526 $324
    • PSC 6:01 AM
      1h 7m
      Nonstop
      SEA 7:08 AM
      Pasco - Seattle | Thu, Nov 5 | American Airlines
      $373
      28% off
      $526 $373
    • PSC 6:01 AM
      1h 7m
      Nonstop
      SEA 7:08 AM
      Pasco - Seattle | Tue, Nov 10 | American Airlines
      $398
      24% off
      $526 $398
    • PSC 6:01 AM
      1h 7m
      Nonstop
      SEA 7:08 AM
      Pasco - Seattle | Mon, Nov 9 | Alaska Airlines
      $406
      23% off
      $526 $406
    • PSC 6:01 AM
      1h 7m
      Nonstop
      SEA 7:08 AM
      Pasco - Seattle | Mon, Nov 9 | American Airlines
      $457
      13% off
      $526 $457
    • PSC 4:12 PM
      1h 9m
      Nonstop
      SEA 5:21 PM
      Pasco - Seattle | Wed, Dec 2 | Alaska Airlines
      $149
      43% off
      $261 $149
    • PSC 4:12 PM
      1h 9m
      Nonstop
      SEA 5:21 PM
      Pasco - Seattle | Wed, Nov 25 | Alaska Airlines
      $149
      13% off
      $172 $149
    • PSC 1:00 PM
      17h 25m
      1 stop
      SEA 2:00 PM
      Pasco - Seattle | Fri, Nov 6 | Normal Airline
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Displayed flight fares from Pasco to Seattle are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Which airline offers the cheapest flights from Tri Cities Airport to Seattle Tacoma Intl. Airport?

The cheapest airline flying from Tri Cities Airport to Seattle Tacoma Intl. Airport is Alaska Airlines (from $139) among 4 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Alaska Airlines
From $139
Delta Air Lines
From $166
American Airlines
From $235
United Airlines
From $423

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What is the flight schedule from Tri Cities Airport to Seattle Tacoma Intl. Airport?

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

Flight info.
Departure
Arrival
Weekly Schedule

  1. AS2247

    Tri Cities Airport

    1:49 PM

    PSC

    1h 7m

    2:56 PM

    SEA

    S M T W T F S
    Search

  2. AA7581

    Tri Cities Airport

    6:01 AM

    PSC

    1h 7m

    7:08 AM

    SEA

    S M T W T - S
    Search

  3. AS2005

    Tri Cities Airport

    3:46 PM

    PSC

    1h 14m

    5:00 PM

    SEA

    S M T W T F S
    Search

  4. DL3891

    Tri Cities Airport

    3:32 PM

    PSC

    1h 13m

    4:45 PM

    SEA

    S M T W T F S
    Search

  5. DL3972

    Tri Cities Airport

    5:20 AM

    PSC

    1h 16m

    6:36 AM

    SEA

    S M T W T F S
    Search

  6. DL3992

    Tri Cities Airport

    12:42 PM

    PSC

    1h 18m

    2:00 PM

    SEA

    S M T W T F S
    Search
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About Tri Cities Airport and Seattle Tacoma Intl. Airport

Learn about Tri Cities Airport (PSC) and Seattle Tacoma Intl. Airport (SEA) — including location, terminals, transportation, and travel tips.

Flight distance 276.09 km
Cheapest one-way ticket price $106
Cheapest return ticket price $112

FAQs for Tri Cities Airport to Seattle Tacoma Intl. Airport Flights

  • How long is the flight from Tri Cities Airport to Seattle Tacoma Intl. Airport?

    Tri Cities Airport to Seattle Tacoma Intl. Airport takes about 42 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 4 daily flights from Tri Cities Airport (PSC) to Seattle Tacoma Intl. Airport (SEA).
  • The earliest flight from Tri Cities Airport to Seattle Tacoma Intl. Airport departs at 05:20, and the last departs at 18:00, with about 7 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from Tri Cities Airport (PSC) to Seattle Tacoma Intl. Airport (SEA) is quite popular. Without considering departure times or holidays, tickets cost around $328 in November, the most expensive month to book this route.
  • The earliest flight departs from Tri Cities Airport (PSC) at 06:00 and arrives in Seattle Tacoma Intl. Airport (SEA) at 07:09.
  • The latest flight departs from Tri Cities Airport (PSC) at 17:45 and arrives in Seattle Tacoma Intl. Airport (SEA) at 18:59.
    • The distance from Seattle-Tacoma International Airport to downtown is about 17 km. It takes about 30 minutes by taxi.
  • Delta Air Lines is a very popular airline operating an average of 116 flights per month.
  • One-way flights from Tri Cities Airport to Seattle Tacoma Intl. Airport currently start from $139, and round-trip fares start from $112. The current lowest fare is a Alaska Airlines flight departing on Mon, Dec 14; prices may vary depending on availability.
  • Yes. Alaska Airlines and Delta Air Lines operate direct flights from Tri Cities Airport to Seattle Tacoma Intl. Airport, with an average flight time of 40 minutes, and around 49 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 Tri Cities Airport to Seattle Tacoma Intl. Airport is $312. Prices may vary depending on the departure date, airline, and availability.
  • WestJet are the most popular budget airlines flying from Tri Cities Airport to Seattle Tacoma Intl. Airport, with one-way fares starting from $139. Compare final prices carefully, as baggage, seat selection and payment fees may apply.
  • Tri Cities Airport to Seattle Tacoma Intl. Airport operates around 49 weekly flights, mainly by Alaska Airlines and Delta Air Lines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Tri Cities Airport and Seattle Tacoma Intl. 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 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.