Need help booking?
Unpublished phone-only deals available
SEM to HLN: distance & flight time
Selma (Craig Field) → Helena (Helena Regional Airport)
1,646 mi
2,649 km · 1,430 nm
3h 42m
estimated nonstop flight time
-1h
time difference · heading northwest
See live SEM→HLN fares Phone-only fares on this route — call free
Flight time details
1,646 miles nonstop takes roughly 3h 42m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- SEM — Craig Field · Selma, 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 SEM
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 SEM from HLN?
The flight distance from Selma (SEM) to Helena (HLN) is 1,646 miles (2,649 km, 1,430 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEM to HLN?
A nonstop flight takes about 3h 42m 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 Selma and Helena?
Helena is 1 hour behind Selma.
What is the cheapest way to fly from SEM to HLN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEM–HLN that never appear on search engines, with no booking fees.