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THS to HLN: distance & flight time
Sukhothai (Sukhothai Airport) → Helena (Helena Regional Airport)
7,601 mi
12,233 km · 6,606 nm
15h 22m
estimated nonstop flight time
-13h
time difference · heading northeast
See live THS→HLN fares Phone-only fares on this route — call free
Flight time details
7,601 miles nonstop takes roughly 15h 22m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time set-back when reading arrival times on your ticket.
The two airports
- THS — Sukhothai Airport · Sukhothai, Thailand
- 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 THS
- PHS · Phitsanulok Airport44 mi away
- TKT · Tak Airport44 mi away
- PRH · Phrae Airport66 mi away
- LPT · Lampang Airport74 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 THS from HLN?
The flight distance from Sukhothai (THS) to Helena (HLN) is 7,601 miles (12,233 km, 6,606 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from THS to HLN?
A nonstop flight takes about 15h 22m 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 Sukhothai and Helena?
Helena is 13 hours behind Sukhothai.
What is the cheapest way to fly from THS to HLN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on THS–HLN that never appear on search engines, with no booking fees.