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USM to MGM: distance & flight time
Ko Samui (Samui Airport) → MONTGOMERY (Montgomery Regional (Dannelly Field) Airport)
9,514 mi
15,312 km · 8,268 nm
19h 7m
estimated nonstop flight time
-12h
time difference · heading north
See live USM→MGM fares Phone-only fares on this route — call free
Flight time details
9,514 miles nonstop takes roughly 19h 7m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time set-back when reading arrival times on your ticket.
The two airports
- USM — Samui Airport · Ko Samui, Thailand
- MGM — Montgomery Regional (Dannelly Field) Airport · MONTGOMERY, 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 USM
- URT · Surat Thani Airport69 mi away
- NST · Nakhon Si Thammarat Airport70 mi away
- CJM · Chumphon Airport93 mi away
- UNN · Ranong Airport102 mi away
Near MGM
- MXF · Maxwell Air Force Base6 mi away
- SEM · Craig Field35 mi away
- TOI · Troy Municipal Airport at N Kenneth Campbell Field38 mi away
- ALX · Thomas C Russell Field49 mi away
Frequently asked questions
How far is USM from MGM?
The flight distance from Ko Samui (USM) to MONTGOMERY (MGM) is 9,514 miles (15,312 km, 8,268 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USM to MGM?
A nonstop flight takes about 19h 7m 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 Ko Samui and MONTGOMERY?
MONTGOMERY is 12 hours behind Ko Samui.
What is the cheapest way to fly from USM to MGM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USM–MGM that never appear on search engines, with no booking fees.