Flights to Tri-Cities from Portland -

Popular airlines from Portland to Tri-Cities

  • Peach

    Peach

  • Skymark Airlines

    Skymark Airlines

  • All Nippon Airways

    All Nippon Airways

  • Japan Airlines

    Japan Airlines

  • Jetstar Japan

    Jetstar Japan

  • Solaseed Air

    Solaseed Air

  • STARFLYER

    STARFLYER

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Find the cheapest month to fly from Portland (PDX) to Blountville (TRI)

September is typically the cheapest month to fly

From ￥52,473 - ￥143,358 per traveler.

Graph displaying average flight prices per month

*Available to Expedia members.