Cheap flights from Ontario to Missoula

One-way fares from $238 · ONT → MSO · prices found by travellers in the last 48 hours

Compare all dates Missoula → Ontario
Cheapest fare
$238

Alaska Airlines · Fri, Nov 13

Cheapest month
November

from $238

Direct flights
Not recently

Usually 1+ stop

Quickest trip
4h 23m

1,460 km

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Cheapest month to fly from Ontario to Missoula

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 Cheapest $238

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About flights from Ontario to Missoula

Ontario (ONT) and Missoula (MSO) are about 1,460 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 4h 23m. Over the next few months, one-way fares start from $238, and November 2026 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Ontario to Missoula?

The cheapest one-way fare we've seen recently is $238 with Alaska Airlines, departing Friday, November 13, 2026.

What is the cheapest month to fly from Ontario to Missoula?

November 2026 currently has the lowest fares, from $238 one way.

Are there direct flights from Ontario to Missoula?

We haven't seen direct fares recently, so most journeys include at least one stop.

How long is the flight from Ontario to Missoula?

The quickest journey we've seen takes about 4h 23m. Ontario and Missoula are around 1,460 km apart.

Which airlines fly from Ontario to Missoula?

Recent fares on this route were with Alaska Airlines.

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