Cheap flights from Portland to Missoula

Cheapest current fares: $222 in August 2026, 670 km direct flight in ~47m.

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Live fares · PDX → MSO

Cheapest month-by-month fares

Lowest available fare per calendar month from Portland (PDX) to Missoula (MSO). Refreshed daily.

Portland (PDX) → Missoula (MSO)

  1. August 2026 $222

Frequently asked questions

  • What is the cheapest month to fly from Portland to Missoula?

    Based on current 6-month forward fare data, August 2026 is the cheapest month to fly from Portland (PDX) to Missoula (MSO), with fares starting from $222.

  • What is the lowest current fare from PDX to MSO?

    The lowest currently-listed fare from Portland (PDX) to Missoula (MSO) is $222 on 2026-08-24.

  • How long is the flight from Portland to Missoula?

    Direct flights from PDX to MSO cover approximately 670 km (416 miles), with an estimated flight time of 47m. Operating airlines: AS.

Related guides for this route

Sibling pages — full route detail, airport overviews, visa context, per-airline routes.

Full route page: PDX → MSO Cheapest month to fly to Missoula All flights from Portland All flights to Missoula Flights to USA Visa-free with USA passport AS routes