Colombo to Siem Reap: buy now or wait?
Your call FareScore 47/100
€207 Today's best fare
Cheaper than 47% of what we have seen
3 Jan Vietnam Airlines With a stop
Usually €207
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All fares Colombo → Siem Reap
Cheapest first. Every price is live and goes straight to booking.
3 Jan
20:25
Vietnam Airlines · 14h 15m
With a stop ↓3%
€213 €207
13 Nov
20:25
Vietnam Airlines · 17h 05m
With a stop ↓1%
€211 €209
17 Jan
20:25
Vietnam Airlines · 14h 15m
With a stop
€211
29 Jan
20:25
Vietnam Airlines · 14h 15m
With a stop
€211
6 Dec
20:25
Vietnam Airlines · 17h 05m
With a stop
€213
25 Nov
17:20
AirAsia · 20h 10m
With a stop
€246
30 Dec
17:20
AirAsia · 32h 55m
With a stop
€281
29 Dec
17:30
Thai AirAsia · 7h 50m
With a stop
€287
What the history says
Prices recorded 92
Typical price €207
Lowest we saw €194
Based on 92 prices we recorded on this exact route, compared against every month we have on record.
Best booking window
14–27 days — is when this route has been cheapest to book: €204 typical, on 16 observations. That is about €7 less than booking in the last two weeks.
Cheapest months to fly to Siem Reap
November €210 26 observations
October €211 18 observations
December €211 38 observations
Booking tips from our fare data
- How far in advance should you book a flight?
- Book 1–1.5 months before departure. Tracking the same flights at every lead time (94,914 flights on 19,442 routes, 2026-06-14 to 2026-11-04), that window had the smallest average premium over each flight's lowest fare: +16.8%, against +49.3% in the last 3 days.
- What is the cheapest day of the week to fly?
- Wednesday. Comparing each fare with the median of its own route, Wednesday departures were +3.4% and Tuesday +4.2%, while Friday was the dearest at +10.6%. Weekend departures cost more than midweek ones.
- What is the cheapest month to fly?
- November 2026. Comparing each route's fares month by month (booked 8–60 days ahead), November 2026 departures were -1.1% against the route's own median, while January 2027 was the dearest at +17.5%. Covers September 2026, October 2026, November 2026, December 2026, January 2027; fares observed 2026-06-14 to 2026-11-04.
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