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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 €83 and round-trip from €242. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        SEA 9:05 AM
        1h 5m
        Nonstop
        PSC 10:10 AM
        Seattle - Pasco | Sun, Oct 11 | Alaska Airlines
        PSC 6:00 PM
        1h 12m
        Nonstop
        SEA 7:12 PM
        Pasco - Seattle | Tue, Oct 13 | Alaska Airlines
        €242 €894
        73% off
        73% off
        €894 €242
      • SEA 1:36 PM
        1h 14m
        Nonstop
        PSC 2:50 PM
        Seattle - Pasco | Sun, Oct 11 | Delta Air Lines
        PSC 5:20 AM
        1h 21m
        Nonstop
        SEA 6:41 AM
        Pasco - Seattle | Tue, Oct 13 | Delta Air Lines
        €246 €894
        72% off
        72% off
        €894 €246
      • SEA 9:05 AM
        1h 5m
        Nonstop
        PSC 10:10 AM
        Seattle - Pasco | Sat, Oct 10 | Alaska Airlines
        PSC 6:00 PM
        1h 12m
        Nonstop
        SEA 7:12 PM
        Pasco - Seattle | Tue, Oct 13 | Alaska Airlines
        €296 €894
        67% off
        67% off
        €894 €296
      • SEA 10:52 PM
        1h 7m
        Nonstop
        PSC 11:59 PM
        Seattle - Pasco | Sat, Oct 10 | Delta Air Lines
        PSC 12:42 PM
        1h 18m
        Nonstop
        SEA 2:00 PM
        Pasco - Seattle | Tue, Oct 13 | Delta Air Lines
        €301
        66% off
        €894 €301
      • SEA 12:14 PM
        1h 4m
        Nonstop
        PSC 1:18 PM
        Seattle - Pasco | Sat, Oct 10 | American Airlines
        PSC 5:20 AM
        3h 50m
        1 stop
        SEA 9:10 AM
        Pasco - Seattle | Tue, Oct 13 | Alaska Airlines
        €375
        57% off
        €894 €375
      • SEA 12:14 PM
        1h 4m
        Nonstop
        PSC 1:18 PM
        Seattle - Pasco | Sun, Oct 11 | American Airlines
        PSC 5:20 AM
        3h 50m
        1 stop
        SEA 9:10 AM
        Pasco - Seattle | Tue, Oct 13 | Alaska Airlines
        €415
        54% off
        €894 €415
      • SEA 1:19 PM
        22h 55m
        1 stop
        PSC 12:14 PM
        Seattle - Pasco | Sun, Oct 11 | United Airlines
        PSC 5:05 AM
        17h 54m
        1 stop
        SEA 10:59 PM
        Pasco - Seattle | Tue, Oct 13 | United Airlines
        €715
        20% off
        €894 €715
      • SEA 1:00 PM
        17h 25m
        1 stop
        PSC 2:00 PM
        Seattle - Pasco | Thu, Sep 24 | Normal Airline
        PSC 3:00 PM
        6h
        Nonstop
        SEA 4:00 PM
        Pasco - Seattle | Sat, Sep 26 | Normal Airline
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      • Cheapest nonstop
        SEA 9:35 PM
        1h 11m
        Nonstop
        PSC 10:46 PM
        Seattle - Pasco | Mon, Nov 9 | Delta Air Lines
        €83 €357
        77% off
        77% off
        €357 €83
      • SEA 3:50 PM
        1h 4m
        Nonstop
        PSC 4:54 PM
        Seattle - Pasco | Mon, Nov 9 | Alaska Airlines
        €137 €357
        62% off
        62% off
        €357 €137
      • SEA 10:49 AM
        1h 13m
        Nonstop
        PSC 12:02 PM
        Seattle - Pasco | Mon, Oct 19 | Delta Air Lines
        €150 €357
        57% off
        57% off
        €357 €150
      • SEA 1:40 PM
        1h 12m
        Nonstop
        PSC 2:52 PM
        Seattle - Pasco | Fri, Nov 6 | Delta Air Lines
        €150
        57% off
        €357 €150
      • SEA 1:45 PM
        1h 8m
        Nonstop
        PSC 2:53 PM
        Seattle - Pasco | Wed, Nov 18 | Delta Air Lines
        €155
        56% off
        €357 €155
      • SEA 10:49 AM
        1h 13m
        Nonstop
        PSC 12:02 PM
        Seattle - Pasco | Sun, Oct 11 | Delta Air Lines
        €155
        56% off
        €357 €155
      • SEA 10:45 PM
        1h 7m
        Nonstop
        PSC 11:52 PM
        Seattle - Pasco | Tue, Oct 20 | Delta Air Lines
        €156
        56% off
        €357 €156
      • SEA 9:05 AM
        1h 5m
        Nonstop
        PSC 10:10 AM
        Seattle - Pasco | Tue, Oct 13 | Alaska Airlines
        €156
        56% off
        €357 €156
      • SEA 9:05 AM
        1h 5m
        Nonstop
        PSC 10:10 AM
        Seattle - Pasco | Wed, Oct 28 | Alaska Airlines
        €158
        56% off
        €357 €158
      • SEA 1:36 PM
        1h 14m
        Nonstop
        PSC 2:50 PM
        Seattle - Pasco | Wed, Oct 21 | Delta Air Lines
        €158
        56% off
        €357 €158
      • SEA 10:52 PM
        1h 7m
        Nonstop
        PSC 11:59 PM
        Seattle - Pasco | Sun, Oct 18 | Delta Air Lines
        €212
        41% off
        €357 €212
      • SEA 10:45 PM
        1h 9m
        Nonstop
        PSC 11:54 PM
        Seattle - Pasco | Sun, Sep 27 | Delta Air Lines
        €285
        20% off
        €357 €285
      • SEA 1:00 PM
        17h 25m
        1 stop
        PSC 2:00 PM
        Seattle - Pasco | Thu, Sep 24 | Normal Airline
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        Find more flights

Displayed flight fares from Seattle Tacoma Intl. Airport to Tri Cities 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 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 September, with an average price of €71. You’ll want to avoid November, when the average price can reach as high as €221.

€221
€146
€71
0
  • €71
    Sep
  • €143
    Oct
  • €221
    Nov
  • €160
    Dec
  • €208
    Jan
  • €74
    Feb
  • €148
    Mar
  • €125
    Apr
  • €115
    May
  • €171
    Jun
  • €117
    Jul
  • €179
    Aug

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.

€201
€148
€94
€41
    Cheapest
  • €157
    Mon
  • €122
    Tue
  • €94
    Wed
  • €124
    Thu
  • €176
    Fri
  • €201
    Sat
  • €192
    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 Delta Air Lines (from €83) among 4 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Delta Air Lines
From €83
Alaska Airlines
From €99
American Airlines
From €168
United Airlines
From €281

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. AA9297

    Seattle Tacoma Intl. Airport

    1:47 PM

    SEA

    1h 6m

    2:53 PM

    PSC

    S M T W T F S
    Search

  2. AS3378

    Seattle Tacoma Intl. Airport

    3:47 PM

    SEA

    1h 5m

    4:52 PM

    PSC

    S M T W T F S
    Search

  3. AA9363

    Seattle Tacoma Intl. Airport

    3:35 PM

    SEA

    1h 5m

    4:40 PM

    PSC

    S M T W T F 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. DL3992

    Seattle Tacoma Intl. Airport

    10:45 AM

    SEA

    1h 11m

    11:56 AM

    PSC

    S M T W T F S
    Search

  6. AS3140

    Seattle Tacoma Intl. Airport

    9:06 AM

    SEA

    1h 13m

    10:19 AM

    PSC

    S M T W T F S
    Search

  7. DL3891

    Seattle Tacoma Intl. Airport

    3:15 PM

    SEA

    1h 3m

    4:18 PM

    PSC

    S M T W T F S
    Search

  8. AS488

    Seattle Tacoma Intl. Airport

    12:13 PM

    SEA

    1h 11m

    Nonstop

    1:24 PM

    PDX

    S M T W T F S
    Search

  9. AS2108

    Portland International Airport

    2:30 PM

    PDX

    54m

    Nonstop

    3:24 PM

    PSC

    S M T W T F S

  10. AS2325

    Seattle Tacoma Intl. Airport

    5:41 PM

    SEA

    57m

    Nonstop

    6:38 PM

    PDX

    S M T W T F S
    Search

  11. AS3485

    Portland International Airport

    9:55 PM

    PDX

    53m

    Nonstop

    10:48 PM

    PSC

    S M T W T F S

  12. AS3145

    Seattle Tacoma Intl. Airport

    10:04 AM

    SEA

    1h 16m

    Nonstop

    11:20 AM

    PDX

    S M T W T F S
    Search

  13. AS2108

    Portland International Airport

    2:30 PM

    PDX

    54m

    Nonstop

    3:24 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 distance276.09 km
Cheapest one-way ticket price€83
Cheapest return ticket price€242

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 39 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 8 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 09:06, and the last departs at 22:50, with about 8 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 €325 in September, 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 €83, and round-trip fares start from €242. The current lowest fare is a Delta Air Lines flight departing on Mon, Nov 9; 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 36 minutes, and around 55 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 €214. 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 €83. Compare final prices carefully, as baggage, seat selection and payment fees may apply.
  • Seattle Tacoma Intl. Airport to Tri Cities Airport operates around 40 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

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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.
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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.