Cheap flights from Ko Samui (USM)

Boutique island airport in the Gulf of Thailand

Samui International is on the northeast tip of Ko Samui, owned and operated by Bangkok Airways, which dominates traffic. Daily flights link Bangkok BKK, Phuket, Chiang Mai, Singapore and Hong Kong. Thai AirAsia and Thai Vietjet operate limited routes. The airport's open-air pavilions are unusual for an international airport.

Why search this airport on Flightmussy

Airlines flying from Ko Samui (USM)

Major carriers: Bangkok Airways, Thai Airways, Silkair. Low-cost carriers: Thai AirAsia, Thai Vietjet Air.

Popular destinations from Ko Samui (USM)

Frequently asked questions

Which airlines fly to Ko Samui?
USM is dominated by Bangkok Airways, which owns the airport. Thai Airways, Silkair and a few LCCs add limited service. Many travellers fly to HKT or Surat Thani and reach Samui by ferry instead. Flightmussy compares both routings in one search so you can pick the cheaper combination.
Why is Bangkok Airways so dominant at Samui?
Bangkok Airways built and owns USM and operates most slots, which is why fares can run higher than typical Thai domestic routes. Flightmussy's 12-month fare heatmap and free, no-signup search make it easy to spot the cheapest week and to weigh USM directly against one-stop options via HKT.
How far is Samui airport from Chaweng?
USM is on the northeast tip of the island, about 4 km from Chaweng, a 10-minute drive. Most resorts run shuttle pickups, and metered taxis are available. Flightmussy is free and works without signup, so you can lock in a flight quickly before sorting island transfers.
What's the cheapest way to reach Ko Samui?
Direct USM flights are convenient but pricier; flying to HKT or Surat Thani plus a ferry is often 30-50% cheaper. Flightmussy's 12-month fare heatmap surfaces the cheapest week for both routings, so you can compare the total cost in one screen rather than juggling separate searches.

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