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Cheap flights from Ko Samui to Colombo Bandaranaike Intl Airport from ฿7,296

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
USM — CMB
30 Mar — 6 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ko Samui to Colombo

Enter your travel dates to find the best prices.

Cheapest flights from Ko Samui to Colombo
Explore the most affordable flight options available from Ko Samui to Colombo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 February 2026.

Mon 9/318:05
USM
-
CMB
2 stops18h 40m
Multiple Airlines
Tue 10/301:35
CMB
-
USM
1 stop15h 45m
Multiple Airlines
Deal found 24/2฿15,399
Fri 3/408:40
USM
-
CMB
2 stops26h 15m
Multiple Airlines
Mon 6/422:50
CMB
-
USM
2 stops14h 30m
Multiple Airlines
Deal found 24/2฿18,348
Sat 4/715:25
USM
-
CMB
2 stops9h 00m
Malaysia Airlines
Mon 6/700:05
CMB
-
USM
2 stops18h 50m
Malaysia Airlines
Deal found 26/2฿29,928
Sat 4/711:55
USM
-
CMB
1 stop13h 05m
Cathay Pacific
Mon 6/700:50
CMB
-
USM
2 stops28h 50m
Cathay Pacific
Deal found 26/2฿40,080

Find flight deals from Ko Samui to Colombo

Discover tips and strategies to find the most affordable flight options for your journey from Ko Samui (USM) to Colombo (CMB). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 28 February 2026.

Round-trip from

฿18,348

One-way from

฿7,296
3/4-6/4
  • 3/4-6/4
  • 4 total stops
  • 40h 45m total
  • Ko Samui to Colombo
Search Deals
8/5
  • 8/5
  • 2 total stops
  • 11h 05m total
  • Ko Samui to Colombo
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Ko Samui to Colombo that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 28 February 2026.
Use the filters below to find and compare flights from Ko Samui to Colombo Bandaranaike Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Ko SamuiColombo

USM - CMB

USMCMB

Ko Samui

Mon 9/3

19:45-11:00

1 stop16h 45m

Colombo Bandaranaike Intl

Wed 11/3

23:20-20:30

1 stop19h 40m

฿18,907

Ko SamuiColombo

USM - CMB

USMCMB

Ko Samui

Sat 4/7

15:25-22:55

2 stops9h 00m

Colombo Bandaranaike Intl

Mon 6/7

00:05-20:25

2 stops18h 50m

฿29,928

Ko SamuiColombo

USM - CMB

USMCMB

Ko Samui

Sat 4/7

11:55-23:30

1 stop13h 05m

Colombo Bandaranaike Intl

Mon 6/7

00:50-07:10

2 stops28h 50m

฿40,111

Ko SamuiColombo

USM - CMB

USMCMB

Ko Samui

Sat 4/7

08:40-23:35

1 stop16h 25m

Colombo Bandaranaike Intl

Tue 7/7

11:45-07:45

1 stop18h 30m

฿42,812

Ko SamuiColombo

USM - CMB

USMCMB

Ko Samui

Fri 10/4

19:00-22:10

2 stops28h 40m

Colombo Bandaranaike Intl

Fri 17/4

20:35-16:30

3 stops18h 25m

฿63,737

Ko SamuiColombo

USM - CMB

USMCMB

Ko Samui

Fri 3/4

21:00-18:30

3 stops23h 00m

Colombo Bandaranaike Intl

Mon 6/4

20:35-17:45

3 stops19h 40m

฿79,509

Ko SamuiColombo

USM - CMB

USMCMB

Ko Samui

Fri 8/5

08:00-17:35

2 stops11h 05m

฿7,296

Ko SamuiColombo

USM - CMB

USMCMB

Ko Samui

Wed 11/3

08:55-15:50

2 stops32h 25m

฿8,445

Ko SamuiColombo

USM - CMB

USMCMB

Ko Samui

Fri 6/3

13:20-09:25

2 stops21h 35m

฿8,848

Ko SamuiColombo

USM - CMB

USMCMB

Ko Samui

Mon 9/3

19:45-11:00

1 stop16h 45m

฿9,159

Flights are sorted by cheapest return flights first.

Deals found on 27/2

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

Best time to book a flight from Ko Samui to Colombo

Have a flexible travel schedule? Discover the best time to fly to Colombo from Ko Samui with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Ko Samui to Colombo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ko Samui to Colombo Bandaranaike Intl?

    Ko Samui (USM) is the airport you will fly out of if you book a flight from Ko Samui to Colombo Bandaranaike Intl. You should not have trouble finding flights to Colombo Bandaranaike Intl from Ko Samui; the airport handles an average of 0 outbound flights to Colombo Bandaranaike Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Ko Samui airport to Colombo Bandaranaike Intl. It is only a 3.3 km journey to Ko Samui (USM) from Ko Samui’s city centre.

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

    A quick flight from Ko Samui to Colombo Bandaranaike Intl Airport can take about 9h. Malaysia Airlines provides one of the quickest options available for as low as ฿29,928. Airlines will cover a distance of 2234 km. This flight may include one or multiple stops.

  • Can I find deals for flights from Ko Samui to Colombo that include hotel bookings?

    Yes. In addition to deals on Ko Samui to Colombo flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Ko Samui to Colombo?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ko Samui to Colombo.

  • Can I find deals for business class flights from Ko Samui to Colombo?

    Yes. Cheapflights offers flight deals from Ko Samui to Colombo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Fly with Cheapflights

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How does Cheapflights help users find flights from Ko Samui to Colombo?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ko Samui to Colombo. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Ko Samui to Colombo?

Cheapflights helps you find that perfect flight to Colombo from Ko Samui by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Ko Samui to Colombo with no change fees?

Yes! Cheapflights helps users easily find flights from Ko Samui to Colombo with no change fees.

Can Cheapflights notify me if prices for flights from Ko Samui to Colombo become cheaper?

Of course! You can now track prices for flights from Ko Samui to Colombo and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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