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GSO to USM: distance & flight time
Greensboro (Piedmont Triad International Airport) → Ko Samui (Samui Airport)
9,283 mi
14,940 km · 8,067 nm
18h 40m
estimated nonstop flight time
+11h
time difference · heading north
See live GSO→USM fares Phone-only fares on this route — call free
Flight time details
9,283 miles nonstop takes roughly 18h 40m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11-hour time gain when reading arrival times on your ticket.
The two airports
- GSO — Piedmont Triad International Airport · Greensboro, 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 GSO
- INT · Smith Reynolds Airport16 mi away
- CLT · Charlotte Douglas International Airport83 mi away
- DAN · Danville Regional Airport47 mi away
- SVH · Statesville Regional Airport61 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 GSO from USM?
The flight distance from Greensboro (GSO) to Ko Samui (USM) is 9,283 miles (14,940 km, 8,067 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GSO to USM?
A nonstop flight takes about 18h 40m 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 Greensboro and Ko Samui?
Ko Samui is 11 hours ahead of Greensboro.
What is the cheapest way to fly from GSO to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GSO–USM that never appear on search engines, with no booking fees.