Our cheapest offers for flights from Thailand a Koh Samui

Here you can compare cheap flights from Thailand to Koh Samui (USM) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Koh Samui. Prices and availability may change at any time.

Flights from Bangkok (BKK) to Koh Samui (USM)

	Outbound	Return	Airlines	Price
Best option Bangkok Koh Samui	Outbound 06/10/25 direct PG0101 01h 05min	Return 06/29/25 direct PG0122 01h 15min	Bangkok Airways	$138
Bangkok Koh Samui	Outbound 04/21/25 direct PG0101 01h 05min	Return 05/19/25 direct PG0104 01h 15min	Bangkok Airways	$140
Bangkok Koh Samui	Outbound 06/10/25 direct PG0101 01h 05min	Return 06/29/25 direct PG0122 01h 15min	Bangkok Airways	$143

Flights from Bangkok-Don Mueang (DMK) to Koh Samui (USM)

	Outbound	Return	Airlines	Baggage	Price
Bangkok-Don Mueang Koh Samui Pay attention to transfer at connecting flight	Outbound 06/20/25 1 Stopover (KBV) DD0542, PG0266 05h 20min	Return 07/19/25 1 Stopover (CNX) PG0241, DD0133 07h 40min	Nok Air, Bangkok Airways		$184
Best option Bangkok-Don Mueang Koh Samui	Outbound 04/21/25 direct PG0455 01h 30min	Return 05/19/25 direct PG0450 01h 30min	Bangkok Airways		$211
Bangkok-Don Mueang Koh Samui	Outbound 04/21/25 direct PG0455 01h 30min	Return 05/19/25 direct PG0450 01h 30min	Bangkok Airways	?	$213