What is the cheapest month to fly from Sioux City to Missoula?

Based on current 6-month forward fare data, August 2026 is the cheapest month to fly from Sioux City (SUX) to Missoula (MSO), with fares starting from $356.

What is the lowest current fare from SUX to MSO?

The lowest currently-listed fare from Sioux City (SUX) to Missoula (MSO) is $356 on 2026-08-19.

Is there a direct flight from Sioux City to Missoula?

There is currently no non-stop service from SUX to MSO. Most travellers connect through a hub airport. See our route page for current stopover options.

Cheap flights from Sioux City to Missoula

Cheapest current fares: $356 in August 2026 on connecting flights.

Last updated August 11, 2026 · By Flightmaps Editorial

Cheapest month-by-month fares

Lowest available fare per calendar month from Sioux City (SUX) to Missoula (MSO). Refreshed daily.

Sioux City (SUX) → Missoula (MSO)

August 2026 $356

Frequently asked questions

What is the cheapest month to fly from Sioux City to Missoula?

Based on current 6-month forward fare data, August 2026 is the cheapest month to fly from Sioux City (SUX) to Missoula (MSO), with fares starting from $356.
What is the lowest current fare from SUX to MSO?

The lowest currently-listed fare from Sioux City (SUX) to Missoula (MSO) is $356 on 2026-08-19.
Is there a direct flight from Sioux City to Missoula?

There is currently no non-stop service from SUX to MSO. Most travellers connect through a hub airport. See our route page for current stopover options.

Related guides for this route

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