Need help booking?
Unpublished phone-only deals available
HUA to USM: distance & flight time
Redstone (Redstone Army Air Field) → Ko Samui (Samui Airport)
9,349 mi
15,046 km · 8,124 nm
18h 48m
estimated nonstop flight time
+12h
time difference · heading north
See live HUA→USM fares Phone-only fares on this route — call free
Flight time details
9,349 miles nonstop takes roughly 18h 48m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time gain when reading arrival times on your ticket.
The two airports
- HUA — Redstone Army Air Field · Redstone, United States
- USM — Samui Airport · Ko Samui, Thailand
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 HUA
- HSV · Huntsville International Carl T Jones Field6 mi away
- DCU · Pryor Field Regional Airport15 mi away
- MSL · Northwest Alabama Regional Airport53 mi away
- UOS · Franklin County Airport58 mi away
Near USM
- URT · Surat Thani Airport69 mi away
- NST · Nakhon Si Thammarat Airport70 mi away
- CJM · Chumphon Airport93 mi away
- UNN · Ranong Airport102 mi away
Frequently asked questions
How far is HUA from USM?
The flight distance from Redstone (HUA) to Ko Samui (USM) is 9,349 miles (15,046 km, 8,124 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HUA to USM?
A nonstop flight takes about 18h 48m 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 Redstone and Ko Samui?
Ko Samui is 12 hours ahead of Redstone.
What is the cheapest way to fly from HUA to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HUA–USM that never appear on search engines, with no booking fees.