Cheap flights from Tri-Cities

View AU$149 flight on Fri, 24 Oct 2025Opens in a new window

Popular airlines

  • Alaska Airlines

    Alaska Airlines

  • Delta

    Delta

  • American Airlines

    American Airlines

  • United

    United

  • Aeromexico

    Aeromexico

  • Hawaiian Airlines

    Hawaiian Airlines

  • British Airways

    British Airways

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 35% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheapest flights from Tri-Cities

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 27 Dec - Sat, 17 Jan
PSC
Pasco
SEA
Seattle
AU$256 Return, found 13 hours ago
AU$256
Return
found 13 hours ago
Select Delta flight, departing Sat, 27 Dec from Pasco to Seattle, returning Sat, 17 Jan, priced at AU$256 found 13 hours ago
Alaska Airlines
Sat, 27 Dec - Sat, 17 Jan
PSC
Pasco
SEA
Seattle
AU$269 Return, found 13 hours ago
AU$269
Return
found 13 hours ago
Select Alaska Airlines flight, departing Sat, 27 Dec from Pasco to Seattle, returning Sat, 17 Jan, priced at AU$269 found 13 hours ago
Alaska Airlines
Sat, 27 Dec - Sat, 17 Jan
PSC
Pasco
SEA
Seattle
AU$284 Return, found 13 hours ago
AU$284
Return
found 13 hours ago
Select Alaska Airlines flight, departing Sat, 27 Dec from Pasco to Seattle, returning Sat, 17 Jan, priced at AU$284 found 13 hours ago
Delta
Sat, 27 Dec - Sat, 17 Jan
PSC
Pasco
SEA
Seattle
AU$300 Return, found 13 hours ago
AU$300
Return
found 13 hours ago
Select Delta flight, departing Sat, 27 Dec from Pasco to Seattle, returning Sat, 17 Jan, priced at AU$300 found 13 hours ago
Delta
Sat, 27 Dec - Sat, 17 Jan
PSC
Pasco
SEA
Seattle
AU$303 Return, found 13 hours ago
AU$303
Return
found 13 hours ago
Select Delta flight, departing Sat, 27 Dec from Pasco to Seattle, returning Sat, 17 Jan, priced at AU$303 found 13 hours ago
Delta
Sat, 27 Dec - Sat, 17 Jan
PSC
Pasco
SEA
Seattle
AU$315 Return, found 13 hours ago
AU$315
Return
found 13 hours ago
Select Delta flight, departing Sat, 27 Dec from Pasco to Seattle, returning Sat, 17 Jan, priced at AU$315 found 13 hours ago
Delta
Sat, 27 Dec - Sat, 17 Jan
PSC
Pasco
SEA
Seattle
AU$316 Return, found 13 hours ago
AU$316
Return
found 13 hours ago
Select Delta flight, departing Sat, 27 Dec from Pasco to Seattle, returning Sat, 17 Jan, priced at AU$316 found 13 hours ago
Alaska Airlines
Sat, 27 Dec - Sat, 17 Jan
PSC
Pasco
SEA
Seattle
AU$330 Return, found 13 hours ago
AU$330
Return
found 13 hours ago
Select Alaska Airlines flight, departing Sat, 27 Dec from Pasco to Seattle, returning Sat, 17 Jan, priced at AU$330 found 13 hours ago
American Airlines
Sat, 27 Dec - Sat, 17 Jan
PSC
Pasco
SEA
Seattle
AU$360 Return, found 13 hours ago
AU$360
Return
found 13 hours ago
Select American Airlines flight, departing Sat, 27 Dec from Pasco to Seattle, returning Sat, 17 Jan, priced at AU$360 found 13 hours ago
United
Tue, 28 Apr - Wed, 29 Apr
PSC
Pasco
LAX
Los Angeles
AU$523 Return, found 4 days ago
AU$523
Return
found 4 days ago
Select United flight, departing Tue, 28 Apr from Pasco to Los Angeles, returning Wed, 29 Apr, priced at AU$523 found 4 days ago

Flights from Tri-Cities: Essential Travel Information

Cheapest flight from Tri-Cities
AU$256 (roundtrip)
Best airlines to fly from Tri-Cities
Delta, Alaska Airlines, American Airlines, United
Cheapest month to fly from Tri-Cities
December
Tri-Cities IATA code
PSC
Tri-Cities Country/State
Washington
Airline ticket deals from Tri-Cities
AU$256 - AU$523

Explore a world of travel with Expedia

*Available to Expedia members.