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USM is the IATA airport code for Koh Samui Airport, Thailand. IATA codes are three-letter identifiers assigned to airports worldwide by the International Air Transport Association — they're what you see on boarding passes, baggage tags, and booking sites. Below: where USM is, what timezone it operates in, and how to sort your transfer, lounge access, and car rental before you land.
USM is the IATA code for Koh Samui Airport, Thailand. You'll see USM on boarding passes, baggage tags, and flight-booking sites whenever this airport is the origin or destination.
Where is USM airport located?
USM serves Koh Samui Airport, Thailand, at approximately 9.5553° N, 100.0628° E.
How do I get from USM into the city?
Pre-booked private transfers are the most predictable option — fixed price, driver tracking your flight, no taxi-line haggling. Compare partner quotes for Koh Samui Airport on this page. Ride-hail and licensed taxis are the usual fallback where available.
What timezone is USM in?
USM operates on the Asia/Bangkok timezone. Flight departure boards always show local time.
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Koh Samui Airport is served by USM in Thailand.