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IAG to USM: distance & flight time
Niagara Falls (Niagara Falls International Airport) → Ko Samui (Samui Airport)
8,798 mi
14,159 km · 7,645 nm
17h 43m
estimated nonstop flight time
+11h
time difference · heading north
See live IAG→USM fares Phone-only fares on this route — call free
Flight time details
8,798 miles nonstop takes roughly 17h 43m 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
- IAG — Niagara Falls International Airport · Niagara Falls, 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 IAG
- YYZ · Lester B. Pearson International Airport52 mi away
- YCM · Niagara District Airport13 mi away
- BUF · Buffalo Niagara International Airport16 mi away
- DU9 · Dunnville Airport37 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 IAG from USM?
The flight distance from Niagara Falls (IAG) to Ko Samui (USM) is 8,798 miles (14,159 km, 7,645 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAG to USM?
A nonstop flight takes about 17h 43m 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 Niagara Falls and Ko Samui?
Ko Samui is 11 hours ahead of Niagara Falls.
What is the cheapest way to fly from IAG to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAG–USM that never appear on search engines, with no booking fees.