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HLN to SEP: distance & flight time
Helena (Helena Regional Airport) → Stephenville (Stephenville Clark Regional Airport)
1,234 mi
1,986 km · 1,072 nm
3h 9m
estimated nonstop flight time
+1h
time difference · heading southeast
See live HLN→SEP fares Phone-only fares on this route — call free
Flight time details
1,234 miles nonstop takes roughly 3h 9m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- HLN — Helena Regional Airport · Helena, United States
- SEP — Stephenville Clark Regional Airport · Stephenville, 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 HLN
- BTM · Bert Mooney Airport51 mi away
- GTF · Great Falls International Airport67 mi away
- BZN · Gallatin Field70 mi away
- LVM · Mission Field97 mi away
Near SEP
- MWL · Mineral Wells Airport40 mi away
- DFW · Dallas Fort Worth International Airport81 mi away
- BKD · Stephens County Airport54 mi away
- FWH · NAS Fort Worth JRB/Carswell Field57 mi away
Frequently asked questions
How far is HLN from SEP?
The flight distance from Helena (HLN) to Stephenville (SEP) is 1,234 miles (1,986 km, 1,072 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HLN to SEP?
A nonstop flight takes about 3h 9m 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 time difference between Helena and Stephenville?
Stephenville is 1 hour ahead of Helena.
What is the cheapest way to fly from HLN to SEP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HLN–SEP that never appear on search engines, with no booking fees.