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Cheap flights from Colombo to Koh Samui

One-way from $256, found by travellers in the last 7 days. The live price is checked when you book.

Departure
Return
Prices for nearby dates
Mon, Nov 9Any priceTue, Nov 10Any priceWed, Nov 11$274Thu, Nov 12$256Fri, Nov 13Any priceSat, Nov 14$271Sun, Nov 15Any priceMon, Nov 16$269

Cheapest one-way tickets

Recent finds on different dates, for 1 adult. Booking opens on Aviasales, which shows baggage, fare rules and the live price.

Cheapest
$256
Thai AirAsia, flight FD 141Found 4 days ago, 1 adult
Check live price
11:00pmColomboThu, Nov 12
Travel time 4h 35m, 1 stopCMBUSM
5:05amKoh SamuiFri, Nov 13
$269
Thai AirAsia, flight FD 141Found 7 days ago, 1 adult
Check live price
11:00pmColomboMon, Nov 16
Travel time 5h, 1 stopCMBUSM
5:30amKoh SamuiTue, Nov 17
$271
Thai AirAsia, flight FD 141Found 6 days ago, 1 adult
Check live price
11:00pmColomboSat, Nov 14
Travel time 4h 35m, 1 stopCMBUSM
5:05amKoh SamuiSun, Nov 15
$271
Thai AirAsia, flight FD 141Found 3 days ago, 1 adult
Check live price
11:00pmColomboMon, Feb 15
Travel time 4h 35m, 1 stopCMBUSM
5:05amKoh SamuiTue, Feb 16
$274
Thai AirAsia, flight FD 141Found today, 1 adult
Check live price
11:00pmColomboWed, Nov 11
Travel time 4h 35m, 1 stopCMBUSM
5:05amKoh SamuiThu, Nov 12

Round trips

The cheapest return tickets found recently, price for the whole trip.

Plan the rest of the trip

  • Mobile data in ThailandTravel eSIM from $4, installed before you fly.
    Compare plans
  • Getting from the airportTransfers and car hire in Koh Samui, booked ahead at a fixed price.
    See options
  • Things to do in Koh SamuiPopular tours from $30.07 per person.
    See ideas
  • Travel insuranceTravel insurance quotes for Thailand from EKTA; check what each policy covers.
    Get a quote
  • Flight delayed?Delayed or cancelled? See which passenger rights cover this route.
    Check

Price calendar

The lowest one-way fare found for each day over the next 60 days. A dash means no recent fare; you can still pick that day.

October 2026

MoTuWeThFrSaSu12345678910111213141516171819202122232425–26–27–28–29–30–31–

November 2026

MoTuWeThFrSaSu1–2–3–4–5–6–7–8–9–10–11$27412$25613–14$27115–16$26917–18–19–20–21–22–23–24–25–26–27–28–29–30–

December 2026

MoTuWeThFrSaSu1–2–3–4–5–6–7–8–9–10$33311–12–13–14–15–16–17–18–19$43120–21–22–23–2425262728293031
$274 or lessGreen: the cheapest fifth of fares on this route. Lowest in these 60 days: Nov 12, $256.

Lowest fares by month

In the fares found this week, November has the lowest: from $256 one-way, against $302 in December. Pick a month to see its cheapest date.

  1. Octno fares yet
  2. Nov$256
  3. Dec$302
  4. Jan$278
  5. Feb$271
  6. Marno fares yet
  7. Aprno fares yet
  8. Mayno fares yet
  9. Junno fares yet
  10. Julno fares yet
  11. Augno fares yet
  12. Sepno fares yet
$0$200$400Oct$256NovDecJanFebMarAprMayJunJulAugSep
Show as a table
MonthCheapest one-wayDateStops
October—
November$256Thu, Nov 121 stop
December$302Thu, Dec 311 stop
January 2027$278Tue, Jan 261 stop
February 2027$271Mon, Feb 151 stop
March 2027—
April 2027—
May 2027—
June 2027—
July 2027—
August 2027—
September 2027—

Fares and weather by month

The lowest one-way fare found for each month, next to the weather in Koh Samui. Average daily high and low and monthly precipitation, 1991–2020 normals.

Oct2026NovDecJan2027FebMarAprMayJunJulAugSep
Lowest fare–$256$302$278$271–––––––
High °C31°30°29°29°29°30°32°33°33°32°32°32°
Low °C24°24°24°24°25°25°26°26°25°25°25°25°
Precipitation mm2954452631276411683132134117102118

Source: Ko Samui on Wikipedia, CC BY-SA 4.0.

Questions travellers ask

What is the cheapest month to fly from Colombo to Koh Samui?

In the fares found this week, November has the lowest: from $256 one-way, against $302 in December.

What is the weather in Koh Samui in November?

In November, the cheapest month to fly, the average daily high in Koh Samui is 30 °C and the low 24 °C.

Are there direct flights from Colombo to Koh Samui?

None of the fares found recently are nonstop. The cheapest options have at least one stop.

Which day of the week is cheapest to fly?

In the fares we have, Monday departures are the cheapest, with a typical lowest fare of $314. Saturday is the priciest at about $410.

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