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GCK to USM: distance & flight time
Garden City (Garden City Regional Airport) → Ko Samui (Samui Airport)
8,893 mi
14,311 km · 7,727 nm
17h 54m
estimated nonstop flight time
+12h
time difference · heading northwest
See live GCK→USM fares Phone-only fares on this route — call free
Flight time details
8,893 miles nonstop takes roughly 17h 54m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time gain when reading arrival times on your ticket.
The two airports
- GCK — Garden City Regional Airport · Garden City, 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 GCK
- DDC · Dodge City Regional Airport43 mi away
- LBL · Liberal Mid-America Regional Airport62 mi away
- GUY · Guymon Municipal Airport96 mi away
- HYS · Hays Regional Airport101 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 GCK from USM?
The flight distance from Garden City (GCK) to Ko Samui (USM) is 8,893 miles (14,311 km, 7,727 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GCK to USM?
A nonstop flight takes about 17h 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 Garden City and Ko Samui?
Ko Samui is 12 hours ahead of Garden City.
What is the cheapest way to fly from GCK to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GCK–USM that never appear on search engines, with no booking fees.