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Seattle Tacoma Intl. Airport to Tri Cities Airport flight

Explore the cheapest one-way and round-trip flights from Seattle Tacoma Intl. Airport to Tri Cities Airport over the next 90 days, with one-way fares from €103 and round-trip from €140. Based on Trip.com's latest 7-day flight data.

    • Cheapest nonstop
      SEA 1:45 PM
      1h 8m
      Nonstop
      PSC 2:53 PM
      Seattle - Pasco | Wed, Nov 18 | Delta Air Lines
      PSC 12:35 PM
      1h 18m
      Nonstop
      SEA 1:53 PM
      Pasco - Seattle | Fri, Nov 20 | Delta Air Lines
      €140 €1,634
      91% off
      91% off
      €1,634 €140
    • SEA 9:14 AM
      1h 11m
      Nonstop
      PSC 10:25 AM
      Seattle - Pasco | Wed, Nov 18 | Alaska Airlines
      PSC 5:34 PM
      1h 13m
      Nonstop
      SEA 6:47 PM
      Pasco - Seattle | Fri, Nov 20 | Alaska Airlines
      €161 €1,634
      90% off
      90% off
      €1,634 €161
    • SEA 8:20 AM
      1h 4m
      Nonstop
      PSC 9:24 AM
      Seattle - Pasco | Wed, Dec 16 | Alaska Airlines
      PSC 1:04 PM
      1h 8m
      Nonstop
      SEA 2:12 PM
      Pasco - Seattle | Tue, Dec 22 | Alaska Airlines
      €235 €1,634
      86% off
      86% off
      €1,634 €235
    • SEA 10:37 AM
      1h 18m
      Nonstop
      PSC 11:55 AM
      Seattle - Pasco | Wed, Dec 16 | Delta Air Lines
      PSC 3:51 PM
      1h 16m
      Nonstop
      SEA 5:07 PM
      Pasco - Seattle | Tue, Dec 22 | Delta Air Lines
      €258
      84% off
      €1,634 €258
    • SEA 12:10 PM
      1h 2m
      Nonstop
      PSC 1:12 PM
      Seattle - Pasco | Wed, Nov 18 | American Airlines
      PSC 12:35 PM
      1h 18m
      Nonstop
      SEA 1:53 PM
      Pasco - Seattle | Fri, Nov 20 | Delta Air Lines
      €294
      82% off
      €1,634 €294
    • SEA 8:00 AM
      1h 4m
      Nonstop
      PSC 9:04 AM
      Seattle - Pasco | Mon, Nov 30 | Alaska Airlines
      PSC 1:40 PM
      1h 9m
      Nonstop
      SEA 2:49 PM
      Pasco - Seattle | Fri, Dec 4 | Alaska Airlines
      €387
      76% off
      €1,634 €387
    • SEA 5:47 PM
      1h 2m
      Nonstop
      PSC 6:49 PM
      Seattle - Pasco | Wed, Dec 16 | American Airlines
      PSC 4:42 PM
      1h 13m
      Nonstop
      SEA 5:55 PM
      Pasco - Seattle | Tue, Dec 22 | Alaska Airlines
      €427
      74% off
      €1,634 €427
    • SEA 10:55 PM
      1h 4m
      Nonstop
      PSC 11:59 PM
      Seattle - Pasco | Mon, Nov 30 | Delta Air Lines
      PSC 9:41 AM
      1h 13m
      Nonstop
      SEA 10:54 AM
      Pasco - Seattle | Fri, Dec 4 | Alaska Airlines
      €466
      71% off
      €1,634 €466
    • SEA 1:38 PM
      1h
      Nonstop
      PSC 2:38 PM
      Seattle - Pasco | Mon, Nov 30 | American Airlines
      PSC 1:40 PM
      1h 9m
      Nonstop
      SEA 2:49 PM
      Pasco - Seattle | Fri, Dec 4 | Alaska Airlines
      €518
      68% off
      €1,634 €518
    • SEA 1:00 PM
      17h 25m
      1 stop
      PSC 2:00 PM
      Seattle - Pasco | Sat, Oct 31 | Normal Airline
      PSC 3:00 PM
      6h
      Nonstop
      SEA 4:00 PM
      Pasco - Seattle | Mon, Nov 2 | Normal Airline
      Find more flights
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    • Cheapest
      SEA 10:39 AM
      1h 9m
      Nonstop
      PSC 11:48 AM
      Seattle - Pasco | Mon, Nov 16 | Delta Air Lines
      €103 €284
      64% off
      64% off
      €284 €103
    • SEA 10:55 PM
      1h 4m
      Nonstop
      PSC 11:59 PM
      Seattle - Pasco | Thu, Dec 3 | Delta Air Lines
      €141 €284
      50% off
      50% off
      €284 €141
    • SEA 1:45 PM
      1h 8m
      Nonstop
      PSC 2:53 PM
      Seattle - Pasco | Thu, Nov 26 | Delta Air Lines
      €144 €284
      49% off
      49% off
      €284 €144
    • SEA 1:45 PM
      1h 8m
      Nonstop
      PSC 2:53 PM
      Seattle - Pasco | Sun, Nov 29 | Delta Air Lines
      €145
      49% off
      €284 €145
    • SEA 10:37 AM
      1h 18m
      Nonstop
      PSC 11:55 AM
      Seattle - Pasco | Sun, Dec 13 | Delta Air Lines
      €145
      49% off
      €284 €145
    • SEA 10:55 PM
      1h 10m
      Nonstop
      PSC 12:05 AM
      Seattle - Pasco | Mon, Dec 14 | Delta Air Lines
      €145
      49% off
      €284 €145
    • SEA 3:55 PM
      1h
      Nonstop
      PSC 4:55 PM
      Seattle - Pasco | Tue, Dec 1 | Alaska Airlines
      €148
      48% off
      €284 €148
    • SEA 1:32 PM
      1h 11m
      Nonstop
      PSC 2:43 PM
      Seattle - Pasco | Tue, Dec 1 | Delta Air Lines
      €151
      47% off
      €284 €151
    • SEA 10:46 PM
      1h
      Nonstop
      PSC 11:46 PM
      Seattle - Pasco | Sun, Dec 13 | Alaska Airlines
      €176
      56% off
      €407 €176
    • SEA 1:00 PM
      17h 25m
      1 stop
      PSC 2:00 PM
      Seattle - Pasco | Sat, Oct 31 | Normal Airline
      Find more flights
      Find more flights
    • Cheapest nonstop
      SEA 10:39 AM
      1h 9m
      Nonstop
      PSC 11:48 AM
      Seattle - Pasco | Mon, Nov 16 | Delta Air Lines
      €103 €284
      64% off
      64% off
      €284 €103
    • SEA 10:55 PM
      1h 4m
      Nonstop
      PSC 11:59 PM
      Seattle - Pasco | Thu, Dec 3 | Delta Air Lines
      €141 €284
      50% off
      50% off
      €284 €141
    • SEA 1:45 PM
      1h 8m
      Nonstop
      PSC 2:53 PM
      Seattle - Pasco | Thu, Nov 26 | Delta Air Lines
      €144 €284
      49% off
      49% off
      €284 €144
    • SEA 1:45 PM
      1h 8m
      Nonstop
      PSC 2:53 PM
      Seattle - Pasco | Sun, Nov 29 | Delta Air Lines
      €145
      49% off
      €284 €145
    • SEA 10:37 AM
      1h 18m
      Nonstop
      PSC 11:55 AM
      Seattle - Pasco | Sun, Dec 13 | Delta Air Lines
      €145
      49% off
      €284 €145
    • SEA 10:55 PM
      1h 10m
      Nonstop
      PSC 12:05 AM
      Seattle - Pasco | Mon, Dec 14 | Delta Air Lines
      €145
      49% off
      €284 €145
    • SEA 3:55 PM
      1h
      Nonstop
      PSC 4:55 PM
      Seattle - Pasco | Tue, Dec 1 | Alaska Airlines
      €148
      48% off
      €284 €148
    • SEA 1:32 PM
      1h 11m
      Nonstop
      PSC 2:43 PM
      Seattle - Pasco | Tue, Dec 1 | Delta Air Lines
      €151
      47% off
      €284 €151
    • SEA 10:46 PM
      1h
      Nonstop
      PSC 11:46 PM
      Seattle - Pasco | Sun, Dec 13 | Alaska Airlines
      €176
      56% off
      €407 €176
    • SEA 1:00 PM
      17h 25m
      1 stop
      PSC 2:00 PM
      Seattle - Pasco | Sat, Oct 31 | Normal Airline
      Find more flights
      Find more flights
    • Cheapest nonstop
      SEA 8:00 AM
      1h 4m
      Nonstop
      PSC 9:04 AM
      Seattle - Pasco | Sun, Nov 29 | Alaska Airlines
      €222 €376
      41% off
      41% off
      €376 €222
    • SEA 10:49 PM
      59m
      Nonstop
      PSC 11:48 PM
      Seattle - Pasco | Sun, Nov 15 | Alaska Airlines
      €232 €376
      38% off
      38% off
      €376 €232
    • SEA 3:50 PM
      1h 4m
      Nonstop
      PSC 4:54 PM
      Seattle - Pasco | Sat, Nov 7 | Alaska Airlines
      €239 €376
      36% off
      36% off
      €376 €239
    • SEA 10:52 PM
      1h 7m
      Nonstop
      PSC 11:59 PM
      Seattle - Pasco | Sun, Nov 1 | Delta Air Lines
      €329
      13% off
      €376 €329
    • SEA 3:50 PM
      1h 4m
      Nonstop
      PSC 4:54 PM
      Seattle - Pasco | Sun, Nov 1 | American Airlines
      €329
      13% off
      €376 €329
    • SEA 3:50 PM
      1h 4m
      Nonstop
      PSC 4:54 PM
      Seattle - Pasco | Sun, Nov 1 | Alaska Airlines
      €330
      12% off
      €376 €330
    • SEA 12:02 PM
      3h 21m
      1 stop
      PSC 3:23 PM
      Seattle - Pasco | Sat, Nov 14 | Alaska Airlines
      €209
      44% off
      €376 €209
    • SEA 7:54 PM
      2h 55m
      1 stop
      PSC 10:49 PM
      Seattle - Pasco | Wed, Nov 4 | Alaska Airlines
      €211
      44% off
      €376 €211
    • SEA 12:02 PM
      3h 21m
      1 stop
      PSC 3:23 PM
      Seattle - Pasco | Tue, Nov 10 | Alaska Airlines
      €212
      44% off
      €376 €212
    • SEA 1:00 PM
      17h 25m
      1 stop
      PSC 2:00 PM
      Seattle - Pasco | Sat, Oct 31 | Normal Airline
      Find more flights
      Find more flights
    • Cheapest nonstop
      SEA 10:52 PM
      1h 7m
      Nonstop
      PSC 11:59 PM
      Seattle - Pasco | Sun, Nov 1 | Delta Air Lines
      €329 €376
      13% off
      13% off
      €376 €329
    • SEA 3:50 PM
      1h 4m
      Nonstop
      PSC 4:54 PM
      Seattle - Pasco | Sun, Nov 1 | American Airlines
      €329 €376
      13% off
      13% off
      €376 €329
    • SEA 3:50 PM
      1h 4m
      Nonstop
      PSC 4:54 PM
      Seattle - Pasco | Sun, Nov 1 | Alaska Airlines
      €330 €376
      12% off
      12% off
      €376 €330
    • SEA 7:54 PM
      2h 55m
      1 stop
      PSC 10:49 PM
      Seattle - Pasco | Wed, Nov 4 | Alaska Airlines
      €211
      44% off
      €376 €211
    • SEA 7:54 PM
      2h 55m
      1 stop
      PSC 10:49 PM
      Seattle - Pasco | Sun, Nov 1 | Alaska Airlines
      €334
      11% off
      €376 €334
    • SEA 1:00 PM
      17h 25m
      1 stop
      PSC 2:00 PM
      Seattle - Pasco | Sat, Oct 31 | Normal Airline
      Find more flights
      Find more flights
    • SEA 10:49 PM
      59m
      Nonstop
      PSC 11:48 PM
      Seattle - Pasco | Sun, Nov 15 | Alaska Airlines
      €232 €371
      37% off
      37% off
      €371 €232
    • SEA 10:49 PM
      59m
      Nonstop
      PSC 11:48 PM
      Seattle - Pasco | Sun, Nov 1 | Alaska Airlines
      €330 €407
      19% off
      19% off
      €407 €330
    • SEA 3:55 PM
      1h
      Nonstop
      PSC 4:55 PM
      Seattle - Pasco | Tue, Dec 1 | Alaska Airlines
      €148 €284
      48% off
      48% off
      €284 €148
    • SEA 10:46 PM
      1h
      Nonstop
      PSC 11:46 PM
      Seattle - Pasco | Sun, Dec 13 | Alaska Airlines
      €176
      56% off
      €407 €176
    • SEA 1:38 PM
      1h
      Nonstop
      PSC 2:38 PM
      Seattle - Pasco | Sun, Nov 29 | American Airlines
      €362
      11% off
      €407 €362
    • SEA 10:55 PM
      1h 4m
      Nonstop
      PSC 11:59 PM
      Seattle - Pasco | Thu, Dec 3 | Delta Air Lines
      €141
      50% off
      €284 €141
    • SEA 8:00 AM
      1h 4m
      Nonstop
      PSC 9:04 AM
      Seattle - Pasco | Sun, Nov 29 | Alaska Airlines
      €222
      40% off
      €371 €222
    • SEA 3:50 PM
      1h 4m
      Nonstop
      PSC 4:54 PM
      Seattle - Pasco | Thu, Nov 12 | Alaska Airlines
      €234
      18% off
      €284 €234
    • SEA 3:50 PM
      1h 4m
      Nonstop
      PSC 4:54 PM
      Seattle - Pasco | Sat, Nov 7 | Alaska Airlines
      €239
      36% off
      €371 €239
    • SEA 1:00 PM
      17h 25m
      1 stop
      PSC 2:00 PM
      Seattle - Pasco | Sat, Oct 31 | Normal Airline
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Displayed flight fares from Seattle to Pasco 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 Seattle Tacoma Intl. Airport to Tri Cities Airport

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

Data is based on average one-way flight prices from Seattle Tacoma Intl. Airport to Tri Cities 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 Seattle Tacoma Intl. Airport to Tri Cities Airport, the best time to buy is in February, with an average price of €77. You’ll want to avoid November, when the average price can reach as high as €228.

€228
€153
€77
€2
    Cheapest
  • €148
    Oct
  • €228
    Nov
  • €166
    Dec
  • €215
    Jan
  • €77
    Feb
  • €153
    Mar
  • €130
    Apr
  • €119
    May
  • €177
    Jun
  • €120
    Jul
  • €185
    Aug
  • €224
    Sep

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

The data is based on the past 12 months and shows the average ticket prices from Seattle Tacoma Intl. Airport to Tri Cities 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 Seattle Tacoma Intl. Airport to Tri Cities Airport is Wednesday, with average fares typically lower than other days. You’ll want to avoid flying on Saturday, as ticket prices are usually the highest that day.

€228
€163
€98
€33
    Cheapest
  • €162
    Mon
  • €177
    Tue
  • €98
    Wed
  • €128
    Thu
  • €182
    Fri
  • €228
    Sat
  • €200
    Sun

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

The cheapest airline flying from Seattle Tacoma Intl. Airport to Tri Cities Airport is Alaska Airlines (from €125) among 5 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Alaska Airlines
From €125
American Airlines
From €171
Delta Air Lines
From €300
United Airlines
From €314
Frontier Airlines
From €573

Find more flights and airlines

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

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

Flight info.
Departure
Arrival
Weekly Schedule

  1. AA9335

    Seattle Tacoma Intl. Airport

    12:10 PM

    SEA

    1h 2m

    1:12 PM

    PSC

    S M T W - - S
    Search

  2. AA9342

    Seattle Tacoma Intl. Airport

    4:00 PM

    SEA

    1h

    5:00 PM

    PSC

    S M T W T F S
    Search

  3. AS2246

    Seattle Tacoma Intl. Airport

    12:10 PM

    SEA

    1h 2m

    1:12 PM

    PSC

    S M T W - - S
    Search

  4. DL4017

    Seattle Tacoma Intl. Airport

    10:35 PM

    SEA

    1h 3m

    11:38 PM

    PSC

    S M T W T F S
    Search

  5. AS3080

    Seattle Tacoma Intl. Airport

    3:50 PM

    SEA

    1h 4m

    4:54 PM

    PSC

    S M T W - - S
    Search

  6. AA9297

    Seattle Tacoma Intl. Airport

    12:14 PM

    SEA

    1h 4m

    1:18 PM

    PSC

    - - - - T F -
    Search

  7. DL3891

    Seattle Tacoma Intl. Airport

    1:36 PM

    SEA

    1h 14m

    2:50 PM

    PSC

    S M T W T - S
    Search

  8. DL3992

    Seattle Tacoma Intl. Airport

    10:49 AM

    SEA

    1h 13m

    12:02 PM

    PSC

    S M T W T F S
    Search

  9. AS3051

    Seattle Tacoma Intl. Airport

    1:47 PM

    SEA

    1h 6m

    2:53 PM

    PSC

    S M T W - - S
    Search

  10. AS488

    Seattle Tacoma Intl. Airport

    12:02 PM

    SEA

    1h 11m

    Nonstop

    1:13 PM

    PDX

    S M T W T F S
    Search

  11. AS2108

    Portland International Airport

    2:30 PM

    PDX

    53m

    Nonstop

    3:23 PM

    PSC

    S M T W T F S
Find more flights and airlines

About Seattle Tacoma Intl. Airport and Tri Cities Airport

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

Flight distance 276.09 km
Cheapest one-way ticket price €103
Cheapest return ticket price €140

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

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

    Seattle Tacoma Intl. Airport to Tri Cities Airport takes about 38 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 4 daily flights from Seattle Tacoma Intl. Airport (SEA) to Tri Cities Airport (PSC).
  • The earliest flight from Seattle Tacoma Intl. Airport to Tri Cities Airport departs at 09:05, and the last departs at 22:53, 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 Seattle Tacoma Intl. Airport (SEA) to Tri Cities Airport (PSC) is quite popular. Without considering departure times or holidays, tickets cost around €336 in October, the most expensive month to book this route.
  • The earliest flight departs from Seattle Tacoma Intl. Airport (SEA) at 09:40 and arrives in Tri Cities Airport (PSC) at 10:49.
  • The latest flight departs from Seattle Tacoma Intl. Airport (SEA) at 20:10 and arrives in Tri Cities Airport (PSC) at 21:15.
    • The distance from Tri Cities Airport to downtown is about 2 km. It takes about 20 minutes by taxi.
  • The closest airport to Tri Cities Airport (PSC) is Walla Walla Regional Airport. The distance is around 67 km.
  • Delta Air Lines is a very popular airline operating an average of 134 flights per month.
  • One-way flights from Seattle Tacoma Intl. Airport to Tri Cities Airport currently start from €103, and round-trip fares start from €140. The current lowest fare is a Delta Air Lines flight departing on Mon, Nov 16; prices may vary depending on availability.
  • Yes. Alaska Airlines and Delta Air Lines operate direct flights from Seattle Tacoma Intl. Airport to Tri Cities Airport, with an average flight time of 37 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 Seattle Tacoma Intl. Airport to Tri Cities Airport is €306. Prices may vary depending on the departure date, airline, and availability.
  • WestJet are the most popular budget airlines flying from Seattle Tacoma Intl. Airport to Tri Cities Airport, with one-way fares starting from €103. Compare final prices carefully, as baggage, seat selection and payment fees may apply.
  • Seattle Tacoma Intl. Airport to Tri Cities 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 Seattle Tacoma Intl. Airport and Tri Cities 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.