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Cheap flights from Ko Samui to Colombo Bandaranaike Intl Airport from ฿8,233

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 30/1. Fares are subject to change and may not be available on all flights or dates of travel.
USM — CMB
27 Nov — 4 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap 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 October 2025.

Round-trip from

฿18,525

One-way from

฿8,233
26/11-2/12
  • 26/11-2/12
  • 2 total stops
  • 32h 55m total
  • Ko Samui to Colombo
Search Deals
30/1
  • 30/1
  • 1 total stop
  • 16h 45m total
  • Ko Samui to Colombo
Search Deals

Find 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 October 2025.

Wed 26/1106:45USM - CMB
1 stop16h 45mMultiple Airlines
Tue 2/1202:50CMB - USM
1 stop16h 10mMultiple Airlines
Deal found 26/10฿18,525

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 October 2025.
Use the filters below to find and compare flights from Ko Samui to Colombo Bandaranaike Intl Airport that are best for you.

Fly from

Ko Samui

Fly to

Colombo

Route

Depart

Return

Price

Ko SamuiColombo

USM - CMB

USMCMB

Ko Samui

Wed 26/11

06:45-22:00

1 stop16h 45m

Colombo Bandaranaike Intl

Tue 2/12

02:50-20:30

1 stop16h 10m

฿18,525

Ko SamuiColombo

USM - CMB

USMCMB

Ko Samui

Fri 30/1

06:45-22:00

1 stop16h 45m

฿8,233

Ko SamuiColombo

USM - CMB

USMCMB

Ko Samui

Fri 13/2

07:55-15:45

1 stop9h 20m

฿9,867

Ko SamuiColombo

USM - CMB

USMCMB

Ko Samui

Sat 8/11

18:15-23:35

2 stops30h 50m

฿13,951

Ko SamuiColombo

USM - CMB

USMCMB

Ko Samui

Sat 8/11

11:40-23:30

1 stop13h 20m

฿20,191

Flights are sorted by cheapest return flights first.

Deals found on 26/10

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.

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

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