CMB - USM

฿10,825 Find Cheap Flights from Colombo to Ko Samui – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
฿20,209
Typical prices: ฿33,367-฿35,130
Multiple Airlines
Sun 2/12Thu 6/12
CMB - USM • 2 stops
Cheapest one-way flight
฿10,825
Typical prices: ฿15,282-฿24,917
Multiple Airlines
Fri 5/1
CMB - USM • 1 stop
Direct flights
Not available
There are currently no direct flights between Colombo Bandaranaike Intl Airport and Ko Samui. You'll need to take a connecting flight to reach the destination.
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We hope you enjoy your trip to Ko Samui!
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Flight Deals

Cheap Flights from Colombo to Ko Samui (CMB-USM)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Bandaranaike Intl to Ko Samui

Wed 2 Dec - Sun 6 Dec
Multiple Airlines Logo
23:00 - 13:50CMB  Colombo Bandaranaike Intl-USM Ko Samui
13h 20m2 stops Bangkok Don Mueang Intl Phuket City
Multiple Airlines Logo
08:55 - 21:50USM  Ko Samui-CMB Colombo Bandaranaike Intl
14h 25m2 stops Singapore Changi Kuala Lumpur Intl
฿20,209Multiple Airlines
Wed 2 Dec - Sun 6 Dec
Multiple Airlines Logo
23:00 - 10:25CMB  Colombo Bandaranaike Intl-USM Ko Samui
9h 55m1 stop Bangkok Don Mueang Intl
Multiple Airlines Logo
12:00 - 21:50USM  Ko Samui-CMB Colombo Bandaranaike Intl
11h 20m2 stops Singapore Changi Kuala Lumpur Intl
฿20,410Multiple Airlines
Tue 1 Dec - Sun 6 Dec
Thai Airways Logo
01:00 - 10:35CMB  Colombo Bandaranaike Intl-USM Ko Samui
8h 05m1 stop Bangkok Suvarnabhumi
Thai Airways Logo
15:35 - 00:01USM  Ko Samui-CMB Colombo Bandaranaike Intl
9h 56m1 stop Bangkok Suvarnabhumi
฿23,795Thai Airways
Sat 19 Dec - Sat 26 Dec
Multiple Airlines Logo
23:00 - 10:25CMB  Colombo Bandaranaike Intl-USM Ko Samui
9h 55m1 stop Bangkok Don Mueang Intl
Multiple Airlines Logo
11:00 - 22:00USM  Ko Samui-CMB Colombo Bandaranaike Intl
12h 30m1 stop Bangkok Don Mueang Intl
฿27,583Multiple Airlines
Sat 19 Dec - Sat 26 Dec
Multiple Airlines Logo
23:00 - 10:25CMB  Colombo Bandaranaike Intl-USM Ko Samui
9h 55m1 stop Bangkok Don Mueang Intl
Multiple Airlines Logo
07:15 - 13:20USM  Ko Samui-CMB Colombo Bandaranaike Intl
31h 35m2 stops Bangkok Suvarnabhumi Hyderabad Rajiv Gandhi Intl
฿29,024Multiple Airlines
Sun 20 Dec - Mon 28 Dec
Multiple Airlines Logo
01:00 - 13:05CMB  Colombo Bandaranaike Intl-USM Ko Samui
10h 35m1 stop Bangkok Suvarnabhumi
Multiple Airlines Logo
17:40 - 00:01USM  Ko Samui-CMB Colombo Bandaranaike Intl
7h 51m1 stop Bangkok Suvarnabhumi
฿30,666Multiple Airlines
Mon 21 Dec - Mon 28 Dec
Multiple Airlines Logo
23:05 - 15:35CMB  Colombo Bandaranaike Intl-USM Ko Samui
15h 00m2 stops Ho Chi Minh City Bangkok Suvarnabhumi
Multiple Airlines Logo
07:55 - 20:50USM  Ko Samui-CMB Colombo Bandaranaike Intl
14h 25m2 stops Bangkok Suvarnabhumi Bengaluru Intl
฿31,001Multiple Airlines
Sat 19 Dec - Sat 26 Dec
Multiple Airlines Logo
22:50 - 10:40CMB  Colombo Bandaranaike Intl-USM Ko Samui
10h 20m2 stops Kuala Lumpur Intl Phuket City
Multiple Airlines Logo
09:20 - 22:00USM  Ko Samui-CMB Colombo Bandaranaike Intl
14h 10m2 stops Phuket City Bangkok Don Mueang Intl
฿31,236Multiple Airlines
Mon 21 Dec - Mon 28 Dec
Multiple Airlines Logo
23:05 - 16:00CMB  Colombo Bandaranaike Intl-USM Ko Samui
15h 25m2 stops Ho Chi Minh City Bangkok Suvarnabhumi
Multiple Airlines Logo
16:35 - 22:00USM  Ko Samui-CMB Colombo Bandaranaike Intl
6h 55m1 stop Bangkok Don Mueang Intl
฿34,654Multiple Airlines
Wed 2 Dec - Sun 6 Dec
Emirates Logo
20:15 - 21:05CMB  Colombo Bandaranaike Intl-USM Ko Samui
23h 20m3 stops Male Dubai Intl Singapore Changi
Emirates Logo
16:25 - 00:45USM  Ko Samui-CMB Colombo Bandaranaike Intl
33h 50m2 stops Singapore Changi Dubai Intl
฿36,263Emirates
Booking Insights

Price, demand, and travel trends for Colombo Bandaranaike Intl Airport to Ko Samui flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

Which airline is the cheapest to fly from Colombo Bandaranaike Intl Airport to Ko Samui?

Thai Airways (฿23,795) and Emirates (฿36,263) are the cheapest airlines to fly return from Colombo Bandaranaike Intl Airport to Ko Samui according to KAYAK data over the last 5 days.

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Key details for Colombo Bandaranaike Intl Airport to Ko Samui flights

Cheapest flight

฿10,825
One-way flight from Colombo Bandaranaike Intl Airport to Ko Samui

When to book flights from Bandaranaike Intl to Ko Samui

Are your dates flexible? Find out the best times to travel from Bandaranaike Intl to Ko Samui based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Colombo Bandaranaike Intl Airport to Ko Samui flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • How long is a flight from Colombo Bandaranaike Intl Airport to Ko Samui?

    A direct flight from Colombo Bandaranaike Intl Airport to Ko Samui takes 00m, covering 3,595 km.

  • Do I need a passport to fly from Colombo Bandaranaike Intl Airport to Ko Samui?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from Colombo Bandaranaike Intl Airport to Ko Samui changed much recently?

    Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about ฿20,209 to ฿93,104. That means the highest observed fare was about 5x higher than the lowest one.

  • How are flight prices from Colombo Bandaranaike Intl Airport to Ko Samui looking right now?

    One-way fares from Colombo Bandaranaike Intl Airport to Ko Samui are currently lower than usual. Average one-way flight prices are about ฿11,636, which is 36% below the typical average for this route.

  • Which car hire options are available at Ko Samui Airport (USM)?

    Ko Samui Airport (USM) hosts 5 major car hire companies, with daily rates starting from around ฿964 for economy cars. Top options include:

    • Drive Car Rental
    • Alamo
    • Sixt
    • Enterprise Rent-A-Car
    • Thai Rent

  • Which airports can I use when flying from Colombo Bandaranaike Intl Airport to Ko Samui?

    Flights from Colombo Bandaranaike Intl Airport to Ko Samui usually depart from Colombo Bandaranaike Intl (CMB) and arrive at Ko Samui (USM).

  • Which airports do connecting flights from Colombo Bandaranaike Intl Airport to Ko Samui pass through?

    Most connecting flights from Colombo Bandaranaike Intl Airport to Ko Samui pass through Bangkok Suvarnabhumi (BKK), which handles 100% of one-stop traffic on this route.

  • Can I save money by using flexible dates for flights from Colombo Bandaranaike Intl Airport to Ko Samui?

    Yes. Flexible dates can save you up to 23% on flights from Colombo Bandaranaike Intl Airport to Ko Samui. Tuesday is the cheapest departure day at ฿28,186 return on average, while Wednesday is the most expensive at ฿36,397, a difference of ฿8,211.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • What is the time difference between Colombo Bandaranaike Intl Airport and Ko Samui?

    Ko Samui is 1 hour ahead of Colombo Bandaranaike Intl Airport (Indochina Time vs India Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Ko Samui?

    Some of the most popular sights in Ko Samui are Chaweng Beach, Lamai Beach, and Bophut Beach. These are among the most viewed places in Ko Samui on KAYAK.

Your guide to booking Colombo Bandaranaike Intl Airport to Ko Samui flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Wednesday. On this route, Tuesday flights average ฿28,186, which is about ฿8,211 less than Wednesday fares (23% savings) based on the last 12 months.
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Ko Samui Airport.

    • Ozo Chaweng Samui - Sha Extra Plus
    • Melia Koh Samui
    • Royal Muang Samui Villas

More options for your flight from Bandaranaike Intl to Ko Samui

Complete your trip to Ko Samui with a hotel stay or car hire

Car rentals in Ko Samui
Hotels in Ko Samui