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GEG to USM: distance & flight time
Spokane (Spokane International Airport) → Ko Samui (Samui Airport)
7,865 mi
12,658 km · 6,835 nm
15h 53m
estimated nonstop flight time
+14h
time difference · heading northwest
See live GEG→USM fares Phone-only fares on this route — call free
Flight time details
7,865 miles nonstop takes roughly 15h 53m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time gain when reading arrival times on your ticket.
The two airports
- GEG — Spokane International Airport · Spokane, 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 GEG
- SKA · Fairchild Air Force Base6 mi away
- SFF · Felts Field11 mi away
- COE · Coeur D'Alene - Pappy Boyington Field35 mi away
- PUW · Pullman Moscow Regional Airport64 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 GEG from USM?
The flight distance from Spokane (GEG) to Ko Samui (USM) is 7,865 miles (12,658 km, 6,835 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GEG to USM?
A nonstop flight takes about 15h 53m 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 Spokane and Ko Samui?
Ko Samui is 14 hours ahead of Spokane.
What is the cheapest way to fly from GEG to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GEG–USM that never appear on search engines, with no booking fees.