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Flights from Colombo to Koh Samui
Cheap flight deals from Colombo to Koh Samui
We've found these cheap flights for you. You can book one-way or round-trip flight tickets.
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Round-trip
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One way
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CMB 23:1520h 50m1 stopsUSM 21:35Colombo - Koh Samui | Tue, Jun 17 | Thai AirAsiaUSM 07:0016h 45m1 stopsCMB 22:15Koh Samui - Colombo | Tue, Jun 24 | Bangkok AirwaysAED 1,760 AED 2,15418% OFF18% OFFAED 2,154 AED 1,760
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CMB 23:1519h 45m1 stopsUSM 20:30Colombo - Koh Samui | Mon, Jun 16 | Thai AirAsiaUSM 06:5516h 50m1 stopsCMB 22:15Koh Samui - Colombo | Sun, Jun 22 | Bangkok AirwaysAED 1,776 AED 2,15418% OFF18% OFFAED 2,154 AED 1,776
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CMB 23:1519h1 stopsUSM 19:45Colombo - Koh Samui | Thu, Jun 26 | Thai AirAsiaUSM 06:5516h 50m1 stopsCMB 22:15Koh Samui - Colombo | Thu, Jul 3 | Bangkok AirwaysAED 1,810 AED 2,15416% OFF16% OFFAED 2,154 AED 1,810
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CMB 23:1520h 50m1 stopsUSM 21:35Colombo - Koh Samui | Sun, Jun 15 | Thai AirAsiaUSM 06:5516h 50m1 stopsCMB 22:15Koh Samui - Colombo | Thu, Jun 19 | Bangkok AirwaysAED 1,81416% OFFAED 2,154 AED 1,814
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CMB 23:1519h1 stopsUSM 19:45Colombo - Koh Samui | Fri, Jun 20 | Thai AirAsiaUSM 06:5516h 50m1 stopsCMB 22:15Koh Samui - Colombo | Mon, Jun 23 | Bangkok AirwaysAED 1,83615% OFFAED 2,154 AED 1,836
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CMB 23:1520h 50m1 stopsUSM 21:35Colombo - Koh Samui | Mon, Jun 23 | Thai AirAsiaUSM 06:5516h 50m1 stopsCMB 22:15Koh Samui - Colombo | Fri, Jun 27 | Bangkok AirwaysAED 1,85114% OFFAED 2,154 AED 1,851
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CMB 23:1514h 10m1 stopsUSM 14:55Colombo - Koh Samui | Tue, Jun 24 | Thai AirAsiaUSM 06:5516h 50m1 stopsCMB 22:15Koh Samui - Colombo | Tue, Jul 1 | Bangkok AirwaysAED 1,86214% OFFAED 2,154 AED 1,862
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CMB 23:1520h 50m1 stopsUSM 21:35Colombo - Koh Samui | Wed, Jun 18 | Thai AirAsiaUSM 06:5516h 50m1 stopsCMB 22:15Koh Samui - Colombo | Wed, Jun 25 | Bangkok AirwaysAED 1,86314% OFFAED 2,154 AED 1,863
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CMB 23:1519h 45m1 stopsUSM 20:30Colombo - Koh Samui | Fri, Jul 4 | Thai AirAsiaUSM 06:5516h 50m1 stopsCMB 22:15Koh Samui - Colombo | Sun, Jul 6 | Bangkok AirwaysAED 1,89112% OFFAED 2,154 AED 1,891
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CMB 23:1517h 45m1 stopsUSM 18:30Colombo - Koh Samui | Thu, Jun 12 | Thai AirAsiaUSM 06:5516h 50m1 stopsCMB 22:15Koh Samui - Colombo | Sun, Jun 15 | Bangkok AirwaysAED 1,89512% OFFAED 2,154 AED 1,895
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CMB 13:0017h 25m1 stopsUSM Invalid DateColombo - Koh Samui | Fri, Jun 13 | Normal AirlineUSM 15:006hNonstopCMB 16:00Koh Samui - Colombo | Sun, Jun 15 | Normal AirlineFind More FlightsFind More Flights
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CMB 23:1520h 50m1 stopsUSM 21:35Colombo - Koh Samui | Tue, Jul 22 | Thai AirAsiaAED 848 AED 1,30935% OFF35% OFFAED 1,309 AED 848
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CMB 23:1519h1 stopsUSM 19:45Colombo - Koh Samui | Thu, Jun 19 | Thai AirAsiaAED 850 AED 1,30935% OFF35% OFFAED 1,309 AED 850
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CMB 23:159h 50m1 stopsUSM 10:35Colombo - Koh Samui | Fri, Aug 1 | Thai AirAsiaAED 851 AED 1,30935% OFF35% OFFAED 1,309 AED 851
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CMB 23:1519h1 stopsUSM 19:45Colombo - Koh Samui | Wed, Jun 18 | Thai AirAsiaAED 86034% OFFAED 1,309 AED 860
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CMB 23:1519h 45m1 stopsUSM 20:30Colombo - Koh Samui | Fri, Jun 13 | Thai AirAsiaAED 87034% OFFAED 1,309 AED 870
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CMB 23:1519h 45m1 stopsUSM 20:30Colombo - Koh Samui | Wed, Jun 25 | Thai AirAsiaAED 87933% OFFAED 1,309 AED 879
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CMB 23:1519h 45m1 stopsUSM 20:30Colombo - Koh Samui | Mon, Jun 16 | Thai AirAsiaAED 88732% OFFAED 1,309 AED 887
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CMB 23:1519h1 stopsUSM 19:45Colombo - Koh Samui | Tue, Jun 24 | Thai AirAsiaAED 89232% OFFAED 1,309 AED 892
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CMB 23:1520h 50m1 stopsUSM 21:35Colombo - Koh Samui | Sun, Jun 15 | Thai AirAsiaAED 89432% OFFAED 1,309 AED 894
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CMB 23:1519h1 stopsUSM 19:45Colombo - Koh Samui | Sat, Jun 14 | Thai AirAsiaAED 1,15212% OFFAED 1,309 AED 1,152
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CMB 13:0017h 25m1 stopsUSM Invalid DateColombo - Koh Samui | Fri, Jun 13 | Normal AirlineFind More FlightsFind More Flights
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
Flight Info | Colombo to Koh Samui
Cheapest one-way flight price | AED 847 |
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Off-season for travel | May |
Peak season for travel | June |
Flight distance | 2,242.83 km |
Popular airline | Thai AirAsia |
When is the cheapest time to fly from Colombo to Koh Samui?
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Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Frequently Asked Questions
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When are flight tickets from Colombo (CMB) to Koh Samui (USM) the cheapest?
Airlines adjust prices for flights from Colombo to Koh Samui based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays. -
How much do flights from Colombo (CMB) to Koh Samui (USM) cost?
According to Trip.com's data, the lowest price is around AED 2,004. -
How many airports are there in Koh Samui (USM)?
There are 1 airport(s) near Koh Samui (USM): Samui Airport.
How to find a cheap flight from Colombo to Koh Samui
Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Colombo to Koh Samui. Book your flights at the right time and save more.
Being flexible with your dates to get the cheapest Colombo to Koh Samui ticket.
Tap "Date" on flight search bar to scan through the calender for Colombo to Koh Samui airfare over next 6 months in 2025. If you would like to fly in next 3 months, it seems the cheapest date is on Tue, Jul 22 at AED 848 for one-way flights.
Compare cheap Colombo to Koh Samui flight deals from over hundreds of airlines.
Our extensive search allows you to compare prices from over 500 airlines to choose the cheapest flight tickets from Colombo to Koh Samui. The cheapest airline operating is Thai AirAsia.
Set up a Price Alert
By setting up a Price Alert for your Colombo to Koh Samui route, you can easily track the price of your airline tickets from without manually checking every day.
Don't miss cheap Colombo to Koh Samui flight deals and promo codes.
You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights. If registering a free membership, you can receive more deals for your flights.
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
Search for flights on the go.
To get the best flight booking experience on the go, download Trip.com and search for cheap flight tickets from Colombo to Koh Samui to get exclusive deals for you.
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