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TRI to USM: distance & flight time
BRISTOL (Tri-Cities Regional TN/VA Airport) → Ko Samui (Samui Airport)
9,253 mi
14,891 km · 8,041 nm
18h 37m
estimated nonstop flight time
+11h
time difference · heading north
See live TRI→USM fares Phone-only fares on this route — call free
Flight time details
9,253 miles nonstop takes roughly 18h 37m 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
- TRI — Tri-Cities Regional TN/VA Airport · BRISTOL, 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 TRI
- MRN · Foothills Regional Airport63 mi away
- AVL · Asheville Regional Airport72 mi away
- IKB · Wilkes County Airport75 mi away
- HKY · Hickory Regional Airport76 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 TRI from USM?
The flight distance from BRISTOL (TRI) to Ko Samui (USM) is 9,253 miles (14,891 km, 8,041 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from TRI to USM?
A nonstop flight takes about 18h 37m 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 BRISTOL and Ko Samui?
Ko Samui is 11 hours ahead of BRISTOL.
What is the cheapest way to fly from TRI to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on TRI–USM that never appear on search engines, with no booking fees.