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Home / Colombo — Koh Samui

Cheap flights Colombo — Koh Samui

Colombo (CMB, LK) Koh Samui (USM, TH)
from $263 2 243 km ~3h 8m 9 flights found 1 airlines cheapest on Sunday
Reverse route
How many travellers?
Adults
12+ years
1
Children
2–11 years
0
Infants
under 2
0
Choose your departure date
Cheapest: $263 on 15.11.2026
Prices shown are from searches by other travellers over the last 24 hours. Missing a date? Click any day — we'll find tickets anyway.
November 2026
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Tu
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Th
Fr
Sa
Su
December 2026
Mo
Tu
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Th
Fr
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Su
January 2027
Mo
Tu
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Th
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Prices found for 7 of 90 days. Prices update as more travellers search. Click any date to search live.
Depart
—
Return
—
Cheapest flights found
15 Nov 2026, Sun
Thai AirAsia FD 141
20:30
CMB Bandaranaike International Airport
01:10
USM Koh Samui Airport
4h 40m 1 stop
Trip.com
$263
View this ticket
14 Nov 2026, Sat
Thai AirAsia FD 141
20:30
CMB Bandaranaike International Airport
01:30
USM Koh Samui Airport
5h 1 stop
Trip.com
$275
View this ticket
31 Dec 2026, Thu
Thai AirAsia FD 141
20:30
CMB Bandaranaike International Airport
01:25
USM Koh Samui Airport
4h 55m 1 stop
City.Travel
$302
View this ticket
10 Dec 2026, Thu
Thai AirAsia FD 141
20:30
CMB Bandaranaike International Airport
01:25
USM Koh Samui Airport
4h 55m 1 stop
Trip.com
$333
View this ticket
24 Dec 2026, Thu
Thai AirAsia FD 141
20:30
CMB Bandaranaike International Airport
01:30
USM Koh Samui Airport
5h 1 stop
Trip.com
$402
View this ticket
25 Dec 2026, Fri
Thai AirAsia FD 141
20:30
CMB Bandaranaike International Airport
01:25
USM Koh Samui Airport
4h 55m 1 stop
Trip.com
$402
View this ticket
Route characteristics
Distance
2 243 km
Flight time
3h 8m
Time difference
+1h
Minimum price
from $263 (15.11.2026)
Average price
$343
Maximum price
$427
Departures per week
1
Cheapest day
Sunday
Departure airports (1)
CMB Bandaranaike International Airport
Arrival airports (1)
USM Koh Samui Airport
Airlines (1)
FD Thai AirAsia
Agencies (2)
Trip.com City.Travel
Prices by day of week
Thursday
$302
avg $346
Friday
$402
avg $402
Saturday
$275
avg $275
Sunday
$263
avg $263
Cheapest
Price trend by month
November 2026
from $263
avg $269
2 flights
December 2026
from $302
avg $360
4 flights
Airlines — cheapest prices 1
Thai AirAsia
Thai AirAsia
Low-cost 9 flights · 9 days
$263
Where to buy tickets 2
Trip.com
8 tickets · 8 days
from $263
City.Travel
1 tickets · 1 days
from $302
Airports

From — Colombo (1)

  • CMB Bandaranaike International Airport

To — Koh Samui (1)

  • USM Koh Samui Airport
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Frequently asked questions about the route Colombo — Koh Samui
How long is the flight from Colombo to Koh Samui?
Approximate flight time — 3h 8m. This is an average for a direct flight. With connections, the time may be longer.
What is the distance from Colombo to Koh Samui?
The straight-line distance — 2 243 km.
How much do flights from Colombo to Koh Samui cost?
The minimum price over 3 months — from $263 on 15.11.2026.
What is the average ticket price?
The average price — $343. Range: $263 — $427.
What is the time difference between Colombo and Koh Samui?
The difference — +1h.
From which airports does Colombo operate flights?
From Colombo: CMB (Bandaranaike International Airport).
To which airports in Koh Samui do flights arrive?
To Koh Samui: USM (Koh Samui Airport).
Which airlines fly this route?
This route is served by 1 airline: Thai AirAsia.
Which day of the week is cheapest?
The cheapest day of the week — Sunday.
When is the best time to buy tickets?
Optimal — 1–3 months before departure. Check the calendar above — it shows the best dates.
How do I book flights?
Click "View this ticket" on any flight card — you'll be redirected to the booking page with this specific ticket pre-selected.
About the route Colombo — Koh Samui

Flights Colombo — Koh Samui is a popular route. The straight-line distance is 2 243 km. Flight time 3h 8m. Time difference +1h.

From Colombo (CMB) flights depart from 1 airport: CMB. To Koh Samui (USM) — 1 arrival airport: USM.

1 airline operate on this route: Thai AirAsia.

The minimum price for the next 3 months — from $263 (15.11.2026). The cheapest dates are highlighted in the calendar above.

The average ticket price — $343, ranging from $263 to $427. Book 1–3 months in advance to get the best deals.

Cheapest day to fly — Sunday.

Other destinations in Thailand from Colombo
Bangkok
TH
Chiang Mai
TH
Phuket
TH
Krabi
TH
Surat Thani
TH
Pattaya
TH

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