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SFF to USM: distance & flight time
Spokane (Felts Field) → Ko Samui (Samui Airport)
7,869 mi
12,663 km · 6,838 nm
15h 54m
estimated nonstop flight time
+14h
time difference · heading northwest
See live SFF→USM fares Phone-only fares on this route — call free
Flight time details
7,869 miles nonstop takes roughly 15h 54m 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
- SFF — Felts Field · 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 SFF
- GEG · Spokane International Airport11 mi away
- SKA · Fairchild Air Force Base16 mi away
- COE · Coeur D'Alene - Pappy Boyington Field24 mi away
- PUW · Pullman Moscow Regional Airport66 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 SFF from USM?
The flight distance from Spokane (SFF) to Ko Samui (USM) is 7,869 miles (12,663 km, 6,838 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SFF to USM?
A nonstop flight takes about 15h 54m 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 SFF to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SFF–USM that never appear on search engines, with no booking fees.