Cheap flights from Chicago to Missoula

Cheapest current fares: $250 in August 2026, 2,138 km direct flight in ~2h 31m.

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Live fares · ORD → MSO

Cheapest month-by-month fares

Lowest available fare per calendar month from Chicago (ORD) to Missoula (MSO). Refreshed daily.

Chicago (ORD) → Missoula (MSO)

  1. August 2026 $250

Frequently asked questions

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

    Based on current 6-month forward fare data, August 2026 is the cheapest month to fly from Chicago (ORD) to Missoula (MSO), with fares starting from $250.

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

    The lowest currently-listed fare from Chicago (ORD) to Missoula (MSO) is $250 on 2026-08-16.

  • How long is the flight from Chicago to Missoula?

    Direct flights from ORD to MSO cover approximately 2,138 km (1,328 miles), with an estimated flight time of 2h 31m. Operating airlines: AA, UA.

Related guides for this route

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

Full route page: ORD → MSO Cheapest month to fly to Missoula All flights from Chicago All flights to Missoula Flights to USA Visa-free with USA passport AA routes UA routes