Cheap flights from Boise to Great Falls

Cheapest current fares: $351 in August 2026 on connecting flights.

Last updated · By

Live fares · BOI → GTF

Cheapest month-by-month fares

Lowest available fare per calendar month from Boise (BOI) to Great Falls (GTF). Refreshed daily.

Boise (BOI) → Great Falls (GTF)

  1. August 2026 $351

Frequently asked questions

  • What is the cheapest month to fly from Boise to Great Falls?

    Based on current 6-month forward fare data, August 2026 is the cheapest month to fly from Boise (BOI) to Great Falls (GTF), with fares starting from $351.

  • What is the lowest current fare from BOI to GTF?

    The lowest currently-listed fare from Boise (BOI) to Great Falls (GTF) is $351 on 2026-08-27.

  • Is there a direct flight from Boise to Great Falls?

    There is currently no non-stop service from BOI to GTF. 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.

Full route page: BOI → GTF Cheapest month to fly to Great Falls All flights from Boise All flights to Great Falls Flights to USA Visa-free with USA passport