Are there nonstop flights from Idaho Falls (IDA) to Great Falls (GTF)?

No. The fastest connection is via Salt Lake City, about 2h 14m of total flying time.

What is the fastest connection from Idaho Falls (IDA) to Great Falls (GTF)?

via Salt Lake City ≈ 2h 14m (estimated flying time, excluding layovers).

Idaho Falls Regional Airport (IDA) to Great Falls International Airport (GTF)・445 km

No nonstop flights. The fastest connection is via Salt Lake City (SLC), about 2h 14m of flying time (layover not included).

None.

1 one-stop options, sorted by estimated flying time. Tap one to see the airlines on each leg and booking links.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.