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TST to HLN: distance & flight time
Trang (Trang Airport) → Helena (Helena Regional Airport)
8,224 mi
13,235 km · 7,146 nm
16h 35m
estimated nonstop flight time
-13h
time difference · heading northeast
See live TST→HLN fares Phone-only fares on this route — call free
Flight time details
8,224 miles nonstop takes roughly 16h 35m 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
- TST — Trang Airport · Trang, 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 TST
- KBV · Krabi Airport59 mi away
- HDY · Hat Yai International Airport66 mi away
- SGZ · Songkhla Airport71 mi away
- NST · Nakhon Si Thammarat Airport75 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 TST from HLN?
The flight distance from Trang (TST) to Helena (HLN) is 8,224 miles (13,235 km, 7,146 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from TST to HLN?
A nonstop flight takes about 16h 35m 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 Trang and Helena?
Helena is 13 hours behind Trang.
What is the cheapest way to fly from TST to HLN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on TST–HLN that never appear on search engines, with no booking fees.