✈ Distance: Utapao,Thailand to Koh Samui,Thailand — 363.15 km
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Utapao to Koh Samui — what to expect when booking
The UTP–USM route is served by multiple carriers throughout the year.
Fares on this route can move quickly — a price available now may not be there 30 minutes later.
If your dates are flexible, try shifting your departure by a day or two using the date strip above.
Mid-week departures often show lower base fares compared to weekend starts on many routes.
The distance between Utapao,Thailand and Koh Samui,Thailand is approximately
363.15 km.
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❓ Frequently asked questions — Utapao to Koh Samui flights
Generally yes — fares on most routes are most competitive around 4–6 weeks before departure. Booking earlier usually means better availability and a lower base fare when your dates are fixed.
The straight-line distance between Utapao,Thailand (UTP) and Koh Samui,Thailand (USM) is approximately 363.15 km. Actual flying distance may vary slightly depending on routing.
Non-stop availability on this route varies by airline schedule and season. Use the filters below to quickly check whether direct options are available on your selected date.
Mid-week departures often show lower prices than weekend travel on many routes. Use the date strip above to compare nearby days quickly.
