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Seattle-Tacoma International Airport to Tri Cities Airport flight

Explore the cheapest one-way and round-trip flights from Seattle-Tacoma International Airport to Tri Cities Airport over the next 90 days, with one-way fares from DKK 634 and round-trip from DKK 1,031. Based on Trip.com's latest 7-day flight data.

    • Cheapest nonstop
      SEA 13:45
      1h 8m
      Direct
      PSC 14:53
      Seattle - Pasco | Sat, Nov 14 | Delta Air Lines
      PSC 12:35
      1h 18m
      Direct
      SEA 13:53
      Pasco - Seattle | Mon, Nov 16 | Delta Air Lines
      DKK 1,031 DKK 11,804
      91% off
      91% off
      DKK 11,804 DKK 1,031
    • SEA 09:14
      1h 11m
      Direct
      PSC 10:25
      Seattle - Pasco | Sat, Nov 14 | Alaska Airlines
      PSC 17:34
      1h 13m
      Direct
      SEA 18:47
      Pasco - Seattle | Mon, Nov 16 | Alaska Airlines
      DKK 1,184 DKK 11,804
      90% off
      90% off
      DKK 11,804 DKK 1,184
    • SEA 08:20
      1h 4m
      Direct
      PSC 09:24
      Seattle - Pasco | Sat, Dec 12 | Alaska Airlines
      PSC 13:04
      1h 8m
      Direct
      SEA 14:12
      Pasco - Seattle | Fri, Dec 18 | Alaska Airlines
      DKK 1,736 DKK 11,804
      85% off
      85% off
      DKK 11,804 DKK 1,736
    • SEA 10:37
      1h 18m
      Direct
      PSC 11:55
      Seattle - Pasco | Sat, Dec 12 | Delta Air Lines
      PSC 15:51
      1h 16m
      Direct
      SEA 17:07
      Pasco - Seattle | Fri, Dec 18 | Delta Air Lines
      DKK 1,902
      84% off
      DKK 11,804 DKK 1,902
    • SEA 12:10
      1h 2m
      Direct
      PSC 13:12
      Seattle - Pasco | Sat, Nov 14 | American Airlines
      PSC 12:35
      1h 18m
      Direct
      SEA 13:53
      Pasco - Seattle | Mon, Nov 16 | Delta Air Lines
      DKK 2,169
      82% off
      DKK 11,804 DKK 2,169
    • SEA 08:00
      1h 4m
      Direct
      PSC 09:04
      Seattle - Pasco | Thu, Nov 26 | Alaska Airlines
      PSC 13:40
      1h 9m
      Direct
      SEA 14:49
      Pasco - Seattle | Mon, Nov 30 | Alaska Airlines
      DKK 2,857
      76% off
      DKK 11,804 DKK 2,857
    • SEA 17:47
      1h 2m
      Direct
      PSC 18:49
      Seattle - Pasco | Sat, Dec 12 | American Airlines
      PSC 16:42
      1h 13m
      Direct
      SEA 17:55
      Pasco - Seattle | Fri, Dec 18 | Alaska Airlines
      DKK 3,156
      73% off
      DKK 11,804 DKK 3,156
    • SEA 22:55
      1h 4m
      Direct
      PSC 23:59
      Seattle - Pasco | Thu, Nov 26 | Delta Air Lines
      PSC 09:41
      1h 13m
      Direct
      SEA 10:54
      Pasco - Seattle | Mon, Nov 30 | Alaska Airlines
      DKK 3,438
      71% off
      DKK 11,804 DKK 3,438
    • SEA 13:38
      1h
      Direct
      PSC 14:38
      Seattle - Pasco | Thu, Nov 26 | American Airlines
      PSC 13:40
      1h 9m
      Direct
      SEA 14:49
      Pasco - Seattle | Mon, Nov 30 | Alaska Airlines
      DKK 3,827
      68% off
      DKK 11,804 DKK 3,827
    • SEA 13:00
      17h 25m
      1 stop
      PSC 14:00
      Seattle - Pasco | Sat, Nov 7 | Normal Airline
      PSC 15:00
      6h
      Direct
      SEA 16:00
      Pasco - Seattle | Mon, Nov 9 | Normal Airline
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    • Cheapest
      SEA 21:35
      1h 11m
      Direct
      PSC 22:46
      Seattle - Pasco | Sat, Nov 7 | Delta Air Lines
      DKK 634 DKK 1,238
      49% off
      49% off
      DKK 1,238 DKK 634
    • SEA 10:39
      1h 9m
      Direct
      PSC 11:48
      Seattle - Pasco | Tue, Nov 10 | Delta Air Lines
      DKK 761 DKK 1,238
      39% off
      39% off
      DKK 1,238 DKK 761
    • SEA 19:57
      3h 2m
      1 stop
      PSC 22:59
      Seattle - Pasco | Thu, Dec 10 | Alaska Airlines
      DKK 1,013 DKK 1,238
      18% off
      18% off
      DKK 1,238 DKK 1,013
    • SEA 15:50
      1h 4m
      Direct
      PSC 16:54
      Seattle - Pasco | Sat, Nov 7 | Alaska Airlines
      DKK 1,041
      16% off
      DKK 1,238 DKK 1,041
    • SEA 22:55
      1h 4m
      Direct
      PSC 23:59
      Seattle - Pasco | Sat, Nov 28 | Delta Air Lines
      DKK 1,042
      16% off
      DKK 1,238 DKK 1,042
    • SEA 13:45
      1h 8m
      Direct
      PSC 14:53
      Seattle - Pasco | Sat, Nov 21 | Delta Air Lines
      DKK 1,059
      14% off
      DKK 1,238 DKK 1,059
    • SEA 13:45
      1h 8m
      Direct
      PSC 14:53
      Seattle - Pasco | Tue, Nov 24 | Delta Air Lines
      DKK 1,070
      14% off
      DKK 1,238 DKK 1,070
    • SEA 10:37
      1h 18m
      Direct
      PSC 11:55
      Seattle - Pasco | Tue, Dec 8 | Delta Air Lines
      DKK 1,072
      13% off
      DKK 1,238 DKK 1,072
    • SEA 22:55
      1h 10m
      Direct
      PSC 00:05
      Seattle - Pasco | Wed, Dec 9 | Delta Air Lines
      DKK 1,072
      13% off
      DKK 1,238 DKK 1,072
    • SEA 13:00
      17h 25m
      1 stop
      PSC 14:00
      Seattle - Pasco | Sat, Nov 7 | Normal Airline
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    • Cheapest nonstop
      SEA 21:35
      1h 11m
      Direct
      PSC 22:46
      Seattle - Pasco | Sat, Nov 7 | Delta Air Lines
      DKK 634 DKK 1,238
      49% off
      49% off
      DKK 1,238 DKK 634
    • SEA 10:39
      1h 9m
      Direct
      PSC 11:48
      Seattle - Pasco | Tue, Nov 10 | Delta Air Lines
      DKK 761 DKK 1,238
      39% off
      39% off
      DKK 1,238 DKK 761
    • SEA 15:50
      1h 4m
      Direct
      PSC 16:54
      Seattle - Pasco | Sat, Nov 7 | Alaska Airlines
      DKK 1,041 DKK 1,238
      16% off
      16% off
      DKK 1,238 DKK 1,041
    • SEA 22:55
      1h 4m
      Direct
      PSC 23:59
      Seattle - Pasco | Sat, Nov 28 | Delta Air Lines
      DKK 1,042
      16% off
      DKK 1,238 DKK 1,042
    • SEA 13:45
      1h 8m
      Direct
      PSC 14:53
      Seattle - Pasco | Sat, Nov 21 | Delta Air Lines
      DKK 1,059
      14% off
      DKK 1,238 DKK 1,059
    • SEA 13:45
      1h 8m
      Direct
      PSC 14:53
      Seattle - Pasco | Tue, Nov 24 | Delta Air Lines
      DKK 1,070
      14% off
      DKK 1,238 DKK 1,070
    • SEA 10:37
      1h 18m
      Direct
      PSC 11:55
      Seattle - Pasco | Tue, Dec 8 | Delta Air Lines
      DKK 1,072
      13% off
      DKK 1,238 DKK 1,072
    • SEA 22:55
      1h 10m
      Direct
      PSC 00:05
      Seattle - Pasco | Wed, Dec 9 | Delta Air Lines
      DKK 1,072
      13% off
      DKK 1,238 DKK 1,072
    • SEA 15:55
      1h
      Direct
      PSC 16:55
      Seattle - Pasco | Thu, Nov 26 | Alaska Airlines
      DKK 1,090
      12% off
      DKK 1,238 DKK 1,090
    • SEA 13:00
      17h 25m
      1 stop
      PSC 14:00
      Seattle - Pasco | Sat, Nov 7 | Normal Airline
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    • Cheapest nonstop
      SEA 15:50
      1h 4m
      Direct
      PSC 16:54
      Seattle - Pasco | Sat, Nov 7 | Alaska Airlines
      DKK 1,631 DKK 2,357
      31% off
      31% off
      DKK 2,357 DKK 1,631
    • SEA 08:00
      1h 4m
      Direct
      PSC 09:04
      Seattle - Pasco | Sun, Nov 29 | Alaska Airlines
      DKK 1,638 DKK 2,357
      31% off
      31% off
      DKK 2,357 DKK 1,638
    • SEA 22:49
      59m
      Direct
      PSC 23:48
      Seattle - Pasco | Sun, Nov 15 | Alaska Airlines
      DKK 1,711 DKK 2,357
      27% off
      27% off
      DKK 2,357 DKK 1,711
    • SEA 15:50
      1h 4m
      Direct
      PSC 16:54
      Seattle - Pasco | Wed, Nov 11 | American Airlines
      DKK 2,144
      9% off
      DKK 2,357 DKK 2,144
    • SEA 12:02
      3h 21m
      1 stop
      PSC 15:23
      Seattle - Pasco | Sat, Nov 14 | Alaska Airlines
      DKK 1,542
      35% off
      DKK 2,357 DKK 1,542
    • SEA 12:02
      3h 21m
      1 stop
      PSC 15:23
      Seattle - Pasco | Tue, Nov 10 | Alaska Airlines
      DKK 1,562
      34% off
      DKK 2,357 DKK 1,562
    • SEA 19:54
      2h 55m
      1 stop
      PSC 22:49
      Seattle - Pasco | Sat, Nov 7 | Alaska Airlines
      DKK 1,570
      33% off
      DKK 2,357 DKK 1,570
    • SEA 19:54
      2h 55m
      1 stop
      PSC 22:49
      Seattle - Pasco | Wed, Nov 11 | Alaska Airlines
      DKK 1,986
      16% off
      DKK 2,357 DKK 1,986
    • SEA 13:00
      17h 25m
      1 stop
      PSC 14:00
      Seattle - Pasco | Sat, Nov 7 | Normal Airline
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    • Cheapest nonstop
      SEA 15:50
      1h 4m
      Direct
      PSC 16:54
      Seattle - Pasco | Sat, Nov 7 | Alaska Airlines
      DKK 1,631 DKK 2,357
      31% off
      31% off
      DKK 2,357 DKK 1,631
    • SEA 15:50
      1h 4m
      Direct
      PSC 16:54
      Seattle - Pasco | Wed, Nov 11 | American Airlines
      DKK 2,144 DKK 2,357
      9% off
      9% off
      DKK 2,357 DKK 2,144
    • SEA 12:02
      3h 21m
      1 stop
      PSC 15:23
      Seattle - Pasco | Tue, Nov 10 | Alaska Airlines
      DKK 1,562 DKK 2,357
      34% off
      34% off
      DKK 2,357 DKK 1,562
    • SEA 19:54
      2h 55m
      1 stop
      PSC 22:49
      Seattle - Pasco | Sat, Nov 7 | Alaska Airlines
      DKK 1,570
      33% off
      DKK 2,357 DKK 1,570
    • SEA 19:54
      2h 55m
      1 stop
      PSC 22:49
      Seattle - Pasco | Wed, Nov 11 | Alaska Airlines
      DKK 1,986
      16% off
      DKK 2,357 DKK 1,986
    • SEA 13:00
      17h 25m
      1 stop
      PSC 14:00
      Seattle - Pasco | Sat, Nov 7 | Normal Airline
      Find more flights
      Find more flights
    • SEA 22:49
      59m
      Direct
      PSC 23:48
      Seattle - Pasco | Sun, Nov 15 | Alaska Airlines
      DKK 1,711 DKK 2,357
      27% off
      27% off
      DKK 2,357 DKK 1,711
    • SEA 15:55
      1h
      Direct
      PSC 16:55
      Seattle - Pasco | Thu, Nov 26 | Alaska Airlines
      DKK 1,090 DKK 1,238
      12% off
      12% off
      DKK 1,238 DKK 1,090
    • SEA 22:46
      1h
      Direct
      PSC 23:46
      Seattle - Pasco | Sun, Dec 13 | Alaska Airlines
      DKK 1,298 DKK 2,940
      56% off
      56% off
      DKK 2,940 DKK 1,298
    • SEA 13:38
      1h
      Direct
      PSC 14:38
      Seattle - Pasco | Sun, Nov 29 | American Airlines
      DKK 2,675
      9% off
      DKK 2,940 DKK 2,675
    • SEA 15:50
      1h 4m
      Direct
      PSC 16:54
      Seattle - Pasco | Sat, Nov 7 | Alaska Airlines
      DKK 1,041
      16% off
      DKK 1,238 DKK 1,041
    • SEA 22:55
      1h 4m
      Direct
      PSC 23:59
      Seattle - Pasco | Sat, Nov 28 | Delta Air Lines
      DKK 1,042
      16% off
      DKK 1,238 DKK 1,042
    • SEA 08:20
      1h 4m
      Direct
      PSC 09:24
      Seattle - Pasco | Sun, Dec 6 | Alaska Airlines
      DKK 1,126
      9% off
      DKK 1,238 DKK 1,126
    • SEA 15:50
      1h 4m
      Direct
      PSC 16:54
      Seattle - Pasco | Sat, Nov 7 | Alaska Airlines
      DKK 1,631
      31% off
      DKK 2,357 DKK 1,631
    • SEA 08:00
      1h 4m
      Direct
      PSC 09:04
      Seattle - Pasco | Sun, Nov 29 | Alaska Airlines
      DKK 1,638
      31% off
      DKK 2,357 DKK 1,638
    • SEA 13:00
      17h 25m
      1 stop
      PSC 14:00
      Seattle - Pasco | Sat, Nov 7 | 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 International Airport to Tri Cities Airport

What is the cheapest month to fly from Seattle-Tacoma International Airport to Tri Cities Airport?

The data is based on the past 12 months and shows the average one-way ticket prices from Seattle-Tacoma International Airport to Tri Cities Airport for each month in the Trip.com database.

Based on Trip.com's data from the past 12 months, the cheapest one-way flights from Seattle-Tacoma International Airport to Tri Cities Airport are usually in February, with an average price of DKK 566. It is best to avoid November, when the average price can reach DKK 1,686.

DKK 1,686
DKK 1,126
DKK 566
DKK 6
    Cheapest
  • DKK 1,090
    Oct
  • DKK 1,686
    Nov
  • DKK 1,222
    Dec
  • DKK 1,587
    Jan
  • DKK 566
    Feb
  • DKK 1,128
    Mar
  • DKK 954
    Apr
  • DKK 873
    May
  • DKK 1,307
    Jun
  • DKK 887
    Jul
  • DKK 1,364
    Aug
  • DKK 1,654
    Sep

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

The data is based on the past 12 months and shows the average ticket prices from Seattle-Tacoma International 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 departure day from Seattle-Tacoma International Airport to Tri Cities Airport is Wednesday, with average prices usually lower than other days. Avoid departing on Saturday as prices are typically highest on that day.

DKK 1,686
DKK 1,202
DKK 718
DKK 234
    Cheapest
  • DKK 1,194
    Mon
  • DKK 1,306
    Tue
  • DKK 718
    Wed
  • DKK 943
    Thu
  • DKK 1,342
    Fri
  • DKK 1,686
    Sat
  • DKK 1,472
    Sun

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

The cheapest airline flying from Seattle-Tacoma International Airport to Tri Cities Airport is Alaska Airlines (from DKK 1,013) among 5 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Alaska Airlines
From DKK 1,013
American Airlines
From DKK 1,260
Delta Air Lines
From DKK 2,193
United Airlines
From DKK 2,321
Frontier Airlines
From DKK 4,229

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What is the flight schedule from Seattle-Tacoma International 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 International Airport

    13:34

    SEA

    58m

    14:32

    PSC

    S M T W T F S
    Search

  2. AS2246

    Seattle-Tacoma International Airport

    12:10

    SEA

    1h 2m

    13:12

    PSC

    S M T W T F S
    Search

  3. AS3080

    Seattle-Tacoma International Airport

    15:50

    SEA

    1h 4m

    16:54

    PSC

    S M T W T F S
    Search

  4. AA9342

    Seattle-Tacoma International Airport

    15:50

    SEA

    1h 4m

    16:54

    PSC

    S M T W T F S
    Search

  5. AS3051

    Seattle-Tacoma International Airport

    09:14

    SEA

    1h 11m

    10:25

    PSC

    S M T W T F S
    Search

  6. DL3891

    Seattle-Tacoma International Airport

    13:40

    SEA

    1h 12m

    14:52

    PSC

    S M T W T F S
    Search

  7. DL3992

    Seattle-Tacoma International Airport

    10:49

    SEA

    1h 13m

    12:02

    PSC

    S M T W T F S
    Search

  8. DL4017

    Seattle-Tacoma International Airport

    22:35

    SEA

    1h 3m

    23:38

    PSC

    S M T W T F S
    Search

  9. AS488

    Seattle-Tacoma International Airport

    12:02

    SEA

    1h 11m

    Direct

    13:13

    PDX

    S M T W T F S
    Search

  10. AS2108

    Portland International Airport

    14:30

    PDX

    53m

    Direct

    15:23

    PSC

    S M T W T F S
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About Seattle-Tacoma International Airport and Tri Cities Airport

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

Flight distance 276.09km
Cheapest one-way ticket price DKK 634
Cheapest return ticket price DKK 1,031

FAQs for Seattle-Tacoma International Airport to Tri Cities Airport Flights

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

    Seattle-Tacoma International Airport to Tri Cities Airport takes about 37 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 4 daily flights from Seattle-Tacoma International Airport (SEA) to Tri Cities Airport (PSC).
  • The earliest flight from Seattle-Tacoma International Airport to Tri Cities Airport departs at 09:05, and the last departs at 22:53, with about 12 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from Seattle-Tacoma International Airport (SEA) to Tri Cities Airport (PSC) is quite popular. Without considering departure times or holidays, tickets cost around DKK 2,562 in November, the most expensive month to book this route.
    • The distance from Tri Cities Airport to downtown is about 2km, by taxi about 20 minutes.
  • The closest airport to Tri Cities Airport (PSC) is Walla Walla Regional Airport. The distance is around 67km.
  • Delta Air Lines is a very popular airline operating an average of 134 flights per month.
  • One-way flights from Seattle-Tacoma International Airport to Tri Cities Airport currently start from DKK 634, and round-trip fares start from DKK 1,031. The current lowest fare is a Delta Air Lines flight departing on Sat, Nov 7; prices may vary depending on availability.
  • Yes. Alaska Airlines and Delta Air Lines operate direct flights from Seattle-Tacoma International Airport to Tri Cities Airport, with an average flight time of 35 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 International Airport to Tri Cities Airport is DKK 2,168. Prices may vary depending on the departure date, airline, and availability.
  • WestJet are the most popular budget airlines flying from Seattle-Tacoma International Airport to Tri Cities Airport, with one-way fares starting from DKK 634. Compare final prices carefully, as baggage, seat selection and payment fees may apply.
  • Seattle-Tacoma International Airport to Tri Cities Airport operates around 49 weekly flights, mainly by Alaska Airlines, Delta Air Lines and Qatar Airways. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Seattle-Tacoma International 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.

Find Cheap Flights with Trip.com

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

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Prices displayed on this page are all-inclusive (including taxes, fuel surcharges, civil aviation development fund, etc.), with all fees confirmed before payment. Fees for luggage, meals, Wi-Fi, 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 have been updated within the last 24 hours—sometimes even in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the cancellation and change policies for each flight ticket during the booking process, including any fees and applicable conditions. Please check 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 according to the airline's ticket policy.
Cancellation/change due to a flight schedule change:
If the flight schedule has changed 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 visit the customer support pages.