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Cheap flights Colombo — Siem Reap

Colombo (CMB, LK) Siem Reap (SAI, KH)
from $236 2 721 km ~3h 42m 3 flights found 2 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: $236 on 06.12.2026
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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December 2026
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January 2027
Mo
Tu
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Prices found for 5 of 90 days. Prices update as more travellers search. Click any date to search live.
Depart
—
Return
—
Cheapest flights found
06 Dec 2026, Sun
Vietnam Airlines VN 670
23:25
CMB Bandaranaike International Airport
05:30
SAI Siem Reap International Airport
6h 5m 1 stop
Trip.com
$236
View this ticket
23 Dec 2026, Wed
Vietnam Airlines VN 670
23:25
CMB Bandaranaike International Airport
05:30
SAI Siem Reap International Airport
6h 5m 1 stop
Trip.com
$239
View this ticket
30 Dec 2026, Wed
AirAsia AK 46
20:20
CMB Bandaranaike International Airport
02:10
SAI Siem Reap International Airport
5h 50m 1 stop
Kupi.com
$314
View this ticket
Route characteristics
Distance
2 721 km
Flight time
3h 42m
Time difference
+1h
Minimum price
from $236 (06.12.2026)
Average price
$253
Maximum price
$314
Cheapest day
Sunday
Departure airports (1)
CMB Bandaranaike International Airport
Arrival airports (1)
SAI Siem Reap International Airport
Airlines (2)
VN Vietnam Airlines AK AirAsia
Agencies (2)
Trip.com Kupi.com
Prices by day of week
Wednesday
$239
avg $277
Sunday
$236
avg $236
Cheapest
Airlines — cheapest prices 2
Vietnam Airlines
Vietnam Airlines
2 flights · 2 days
$236
AirAsia
AirAsia
Low-cost 1 flights · 1 days
$314
Where to buy tickets 2
Trip.com
2 tickets · 2 days
from $236
Kupi.com
1 tickets · 1 days
from $314
Airports

From — Colombo (1)

  • CMB Bandaranaike International Airport

To — Siem Reap (1)

  • SAI Siem Reap International Airport
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Frequently asked questions about the route Colombo — Siem Reap
How long is the flight from Colombo to Siem Reap?
Approximate flight time — 3h 42m. This is an average for a direct flight. With connections, the time may be longer.
What is the distance from Colombo to Siem Reap?
The straight-line distance — 2 721 km.
How much do flights from Colombo to Siem Reap cost?
The minimum price over 3 months — from $236 on 06.12.2026.
What is the average ticket price?
The average price — $253. Range: $236 — $314.
What is the time difference between Colombo and Siem Reap?
The difference — +1h.
From which airports does Colombo operate flights?
From Colombo: CMB (Bandaranaike International Airport).
To which airports in Siem Reap do flights arrive?
To Siem Reap: SAI (Siem Reap International Airport).
Which airlines fly this route?
This route is served by 2 airlines: Vietnam Airlines, 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 — Siem Reap

Flights Colombo — Siem Reap is a popular route. The straight-line distance is 2 721 km. Flight time 3h 42m. Time difference +1h.

From Colombo (CMB) flights depart from 1 airport: CMB. To Siem Reap (SAI) — 1 arrival airport: SAI.

2 airlines operate on this route: Vietnam Airlines, AirAsia.

The minimum price for the next 3 months — from $236 (06.12.2026). The cheapest dates are highlighted in the calendar above.

The average ticket price — $253, ranging from $236 to $314. Book 1–3 months in advance to get the best deals.

Cheapest day to fly — Sunday.

Other destinations in Cambodia from Colombo
Sihanoukville
KH
Phnom Penh
KH

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