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STK to HLN: distance & flight time
Sterling (Sterling Municipal Airport) → Helena (Helena Regional Airport)
601 mi
967 km · 522 nm
1h 46m
estimated nonstop flight time
Same time
time difference · heading northwest
See live STK→HLN fares Phone-only fares on this route — call free
Flight time details
601 miles nonstop takes roughly 1h 46m 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
- HLN — Helena Regional Airport · Helena, 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 HLN
- BTM · Bert Mooney Airport51 mi away
- GTF · Great Falls International Airport67 mi away
- BZN · Gallatin Field70 mi away
- LVM · Mission Field97 mi away
Frequently asked questions
How far is STK from HLN?
The flight distance from Sterling (STK) to Helena (HLN) is 601 miles (967 km, 522 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from STK to HLN?
A nonstop flight takes about 1h 46m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the cheapest way to fly from STK to HLN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on STK–HLN that never appear on search engines, with no booking fees.