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THS to USM: distance & flight time
Sukhothai (Sukhothai Airport) → Ko Samui (Samui Airport)
532 mi
856 km · 462 nm
1h 37m
estimated nonstop flight time
Same time
time difference · heading south
See live THS→USM fares Phone-only fares on this route — call free
Flight time details
532 miles nonstop takes roughly 1h 37m gate to gate, flying south. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- THS — Sukhothai Airport · Sukhothai, Thailand
- 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 THS
- PHS · Phitsanulok Airport44 mi away
- TKT · Tak Airport44 mi away
- PRH · Phrae Airport66 mi away
- LPT · Lampang Airport74 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 THS from USM?
The flight distance from Sukhothai (THS) to Ko Samui (USM) is 532 miles (856 km, 462 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from THS to USM?
A nonstop flight takes about 1h 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 cheapest way to fly from THS to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on THS–USM that never appear on search engines, with no booking fees.