CMB - USM

฿8,990 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
฿17,380
Typical prices: ฿27,991-฿33,148
Multiple Airlines
Tue 16/10Mon 22/10
CMB - USM • 1 stop
Cheapest one-way flight
฿8,990
Typical prices: ฿13,754-฿18,772
Multiple Airlines
Tue 16/1
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

Fri 16 Oct - Thu 22 Oct
Multiple Airlines Logo
23:15 - 10:35CMB  Colombo Bandaranaike Intl-USM Ko Samui
9h 50m1 stop Bangkok Don Mueang Intl
Multiple Airlines Logo
07:50 - 22:15USM  Ko Samui-CMB Colombo Bandaranaike Intl
15h 55m1 stop Bangkok Suvarnabhumi
฿17,380Multiple Airlines
Fri 16 Oct - Thu 22 Oct
Multiple Airlines Logo
23:15 - 15:45CMB  Colombo Bandaranaike Intl-USM Ko Samui
15h 00m1 stop Bangkok Don Mueang Intl
Multiple Airlines Logo
07:50 - 22:15USM  Ko Samui-CMB Colombo Bandaranaike Intl
15h 55m1 stop Bangkok Suvarnabhumi
฿18,012Multiple Airlines
Fri 16 Oct - Thu 22 Oct
Multiple Airlines Logo
23:15 - 10:35CMB  Colombo Bandaranaike Intl-USM Ko Samui
9h 50m1 stop Bangkok Don Mueang Intl
Multiple Airlines Logo
11:05 - 21:55USM  Ko Samui-CMB Colombo Bandaranaike Intl
12h 20m2 stops Singapore Changi Kuala Lumpur Intl
฿18,312Multiple Airlines
Fri 16 Oct - Thu 22 Oct
Multiple Airlines Logo
23:15 - 21:35CMB  Colombo Bandaranaike Intl-USM Ko Samui
20h 50m1 stop Bangkok Don Mueang Intl
Multiple Airlines Logo
14:35 - 22:15USM  Ko Samui-CMB Colombo Bandaranaike Intl
9h 10m1 stop Bangkok Suvarnabhumi
฿18,379Multiple Airlines
Fri 16 Oct - Thu 22 Oct
Multiple Airlines Logo
23:15 - 10:35CMB  Colombo Bandaranaike Intl-USM Ko Samui
9h 50m1 stop Bangkok Don Mueang Intl
Multiple Airlines Logo
11:05 - 21:55USM  Ko Samui-CMB Colombo Bandaranaike Intl
12h 20m2 stops Singapore Changi Kuala Lumpur Intl
฿18,445Multiple Airlines
Fri 16 Oct - Thu 22 Oct
Multiple Airlines Logo
23:15 - 10:35CMB  Colombo Bandaranaike Intl-USM Ko Samui
9h 50m1 stop Bangkok Don Mueang Intl
Multiple Airlines Logo
11:05 - 21:55USM  Ko Samui-CMB Colombo Bandaranaike Intl
12h 20m2 stops Singapore Changi Kuala Lumpur Intl
฿18,578Multiple Airlines
Fri 16 Oct - Thu 22 Oct
Multiple Airlines Logo
22:55 - 13:55CMB  Colombo Bandaranaike Intl-USM Ko Samui
13h 30m2 stops Kuala Lumpur Intl Phuket City
Multiple Airlines Logo
11:05 - 21:55USM  Ko Samui-CMB Colombo Bandaranaike Intl
12h 20m2 stops Singapore Changi Kuala Lumpur Intl
฿19,011Multiple Airlines
Fri 16 Oct - Thu 22 Oct
Multiple Airlines Logo
22:55 - 13:55CMB  Colombo Bandaranaike Intl-USM Ko Samui
13h 30m2 stops Kuala Lumpur Intl Phuket City
Multiple Airlines Logo
14:30 - 22:15USM  Ko Samui-CMB Colombo Bandaranaike Intl
9h 15m2 stops Phuket City Bangkok Don Mueang Intl
฿19,244Multiple Airlines
Fri 16 Oct - Thu 22 Oct
Multiple Airlines Logo
23:15 - 11:55CMB  Colombo Bandaranaike Intl-USM Ko Samui
11h 10m2 stops Bangkok Don Mueang Intl Phuket City
Multiple Airlines Logo
06:00 - 16:15USM  Ko Samui-CMB Colombo Bandaranaike Intl
11h 45m2 stops Bangkok Suvarnabhumi Chennai
฿20,110Multiple Airlines
Thu 3 Dec - Mon 7 Dec
Multiple Airlines Logo
23:10 - 10:25CMB  Colombo Bandaranaike Intl-USM Ko Samui
9h 45m1 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
฿22,074Multiple Airlines
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 from Colombo Bandaranaike Intl Airport to Ko Samui with more confidence.

What is the cheapest stopover airport when flying from Colombo Bandaranaike Intl Airport to Ko Samui?

Flights via Bangkok Suvarnabhumi (BKK) offer the most affordable fares, with an average return price of ฿30,112. Based on KAYAK data over the past 3 months.

When flying from Colombo Bandaranaike Intl Airport to Ko Samui, which airport offers the shortest stopover?

Bangkok Suvarnabhumi (BKK) had the shortest average connection time for Colombo Bandaranaike Intl Airport to Ko Samui stopovers at 288 minutes over the past 3 months.

Find deals

Key details for Colombo Bandaranaike Intl Airport to Ko Samui flights

Cheapest flight

฿8,990
Flights 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 route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • 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 0h 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.

  • How much should I expect to pay for a Colombo Bandaranaike Intl Airport to Ko Samui flight?

    Return flights from Colombo Bandaranaike Intl Airport to Ko Samui range from ฿27,991 to ฿33,148, with an average of ฿29,599 over the past 12 months. Anything below ฿27,991 counts as a good deal.

  • 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 ฿17,380 to ฿98,518. That means the highest observed fare was about 6x 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 ฿9,652, which is 43% 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 ฿452 for economy cars. Top options include:
    • Drive Car Rental
    • Alamo
    • Sixt
    • Enterprise Rent-A-Car
    • Hertz

  • 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. Other stopover airports each see under 5%.

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

    On the Colombo Bandaranaike Intl Airport to Ko Samui route, being flexible with your departure day can save you up to 50%. Sunday is the cheapest day at ฿16,614 return on average, while Monday is the most expensive at ฿33,161 – a ฿16,547 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • 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 Maenam 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 Sunday departure instead of Monday. On this route, Sunday flights average ฿16,614 – about ฿16,547 less than Monday (50% 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
    - Cosi Samui Chaweng Beach

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