Why is the Samui flight expensive?

USM is a private-concession airport. Price it against a Surat ferry day before you decide it is a scam. Sometimes the ferry wins.

Bangkok to Koh Samui

Fly to USM if the day matters. The van-plus-ferry via Donsak is the cheaper half-day.

FlightAbout 70 minutes to USM

Ferry pathVan to Donsak plus boat, a half day

SeasonEasier January to September

Samui is the Gulf island with its own airport. USM transfers are short. Chaweng is close. The opposite coast still deserves a booked car at night.

Mode	Time	Notes
Flight	About 70 minutes	USM is the point of Samui. Bangkok Airways and others.
Van and ferry	8-10 hours	Cheaper. Use it when the flight is silly money.
Via Surat Thani train	Long	A romance, not a first-week plan.

Flights to USMTrip.com
BKK to Koh Samui.
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DMK to USMTrip.com
When a Don Mueang routing exists, price it here.
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USM transferTrip.com
Airport to Chaweng, Bophut, or the south.
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Mainland ferryKlook
If you skip USM and come via Donsak.
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Why is the Samui flight expensive?: USM is a private-concession airport. Price it against a Surat ferry day before you decide it is a scam. Sometimes the ferry wins.