Are there nonstop flights from Great Falls (GTF) to Chicago (MDW)?

No. The fastest connection is via Denver, about 3h 52m of total flying time.

What is the fastest connection from Great Falls (GTF) to Chicago (MDW)?

via Denver ≈ 3h 52m, via Salt Lake City ≈ 4h 16m, via Seattle ≈ 5h 14m (estimated flying time, excluding layovers).

Great Falls International Airport (GTF) to Chicago Midway International Airport (MDW)・1,964 km

No nonstop flights. The fastest connection is via Denver (DEN), about 3h 52m of flying time (layover not included).

None.

4 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.