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Find cheap one-way flights from Chiang Rai to Koh Samui starting at US$89.

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

  • One way
  • Round-trip

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

When is the cheapest time to book flights from Chiang Rai 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.
Cheapest airlines flights from Chiang Rai 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 US$89
Thai Vietjet Air
From US$90
Thai Airways
From US$94
Nokair Airline
From US$98
Thai Lion Air
From US$109
ANA airlines

Find more flights and airlines

Find cheap flights from Chiang Rai to Koh Samui by different airports

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

  • Cheapest
    Thai AirAsia
    CEI
    21:30
    9h 50m
    1 transfer
    USM
    07:20
    Chiang Rai Airport - Samui International Airport
    Thu, May 23Thai AirAsia
    US$89
  • Thai AirAsia
    CEI
    21:30
    9h 50m
    1 transfer
    USM
    07:20
    Chiang Rai Airport - Samui International Airport
    Thu, May 23Thai AirAsia
    US$89
    Find More Flights

Frequently Asked Questions

  • When are flight tickets from Chiang Rai (CEI) to Koh Samui (USM) the cheapest?

    Airlines adjust prices for flights from Chiang Rai to Koh Samui based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much do flights from Chiang Rai (CEI) to Koh Samui (USM) cost?

    According to Trip.com's data, the lowest price is around $236.
  • 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. It takes about 20 minutes by taxi.

Chiang Rai to Koh Samui Flight Information

Cheapest nonstop flight price

$89

Off-season for travel

March

Peak season for travel

September