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Flights from Siem Reap to Koh Samui Starting at £105

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • One way
  • Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Find the best time to fly from Siem Reap to Koh Samui

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Airlines Flying from Siem Reap to Koh Samui

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Thai AirAsia
From £105
Bangkok Airways
From £141
Thai Airways
From £163
AirAsia
From £180
Cambodia Angkor Air
From £220
Vietnam Airlines
From £253
VietJet Air
From £285
Singapore Airlines
From £323
China Eastern Airlines
From £341
ANA airlines

Find more flights and airlines

Alternative Routes from Siem Reap to Koh Samui

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Siem Reap to Koh Samui.

  • Cheapest
    Thai AirAsia
    SAI
    15:15
    16h 5m
    1 transfer
    USM
    07:20
    Siem Reap Angkor International Airport - Samui International Airport
    Tue, Jun 11Thai AirAsia
    £105
  • Thai AirAsia
    SAI
    15:15
    16h 5m
    1 transfer
    USM
    07:20
    Siem Reap Angkor International Airport - Samui International Airport
    Tue, Jun 11Thai AirAsia
    £105
    Find More Flights

How do I find the cheapest flights?

  • When are flight tickets from Siem Reap (REP) to Koh Samui (USM) the cheapest?

    Airlines adjust prices for flights from Siem Reap to Koh Samui based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much are flights from Siem Reap (REP) to Koh Samui (USM) cost?

    According to Trip.com's data, the lowest price is around £313.
  • What is the transportation method from the main airport to downtown in Koh Samui?

    • The distance from Samui International Airport to downtown is about 3km, by taxi about 20 minutes.
  • How many airports in Koh Samui (USM)?

    There are 1 airport(s) in Koh Samui (USM): Samui International Airport.

Flight Information from Siem Reap to Koh Samui

Cheapest direct flight price

£107

Cheapest month

January

Peak season for travel

September