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STK to GTF: distance & flight time
Sterling (Sterling Municipal Airport) → Great Falls (Great Falls International Airport)
622 mi
1,000 km · 540 nm
1h 49m
estimated nonstop flight time
Same time
time difference · heading northwest
See live STK→GTF fares Phone-only fares on this route — call free
Flight time details
622 miles nonstop takes roughly 1h 49m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- STK — Sterling Municipal Airport · Sterling, United States
- GTF — Great Falls International Airport · Great Falls, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near STK
- AKO · Colorado Plains Regional Airport30 mi away
- SNY · Sidney Municipal-Lloyd W Carr Field37 mi away
- DEN · Denver International Airport91 mi away
- GXY · Greeley–Weld County Airport73 mi away
Near GTF
- HLN · Helena Regional Airport67 mi away
- CTB · Cut Bank International Airport91 mi away
- LWT · Lewistown Municipal Airport94 mi away
- HVR · Havre City County Airport104 mi away
Frequently asked questions
How far is STK from GTF?
The flight distance from Sterling (STK) to Great Falls (GTF) is 622 miles (1,000 km, 540 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from STK to GTF?
A nonstop flight takes about 1h 49m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from STK to GTF?
Nonstop service on STK–GTF depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 1h 49m nonstop estimate.
What is the cheapest way to fly from STK to GTF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on STK–GTF that never appear on search engines, with no booking fees.
Why are some STK to GTF fares phone-only?
Consolidator contracts let us sell certain STK–GTF tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.