Guangzhou to Siem Reap: buy now or wait?
Buy now FareScore 69/100
usually CN¥1,025 CN¥988 ≈ €132 Today's best fare
Cheaper than 69% of what we have seen
30 Nov Thai AirAsia With a stop
Cheapest in January (~CN¥936)
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All fares Guangzhou → Siem Reap
Cheapest first. Every price is live and goes straight to booking.
30 Nov
16:05
Thai AirAsia · 12h 00m
With a stop ↓3%
€136 €132
15 Nov
16:05
Thai AirAsia · 12h 00m
With a stop ↓1%
€135 €133
12 Nov
19:15
Vietjet · 15h 50m
With a stop
€135
27 Nov
16:05
Thai AirAsia · 12h 00m
With a stop
€136
16 Dec
16:05
Thai AirAsia · 12h 00m
With a stop ↓1%
€137 €136
2 Dec
16:05
Thai AirAsia · 12h 00m
With a stop
€138
11 Jan
19:15
Vietjet · 15h 50m
With a stop ↓1%
€140 €138
29 Nov
21:00
K6 · 13h 25m
With a stop
€141
4 Jan
07:20
Vietnam Airlines · 6h 10m
With a stop
€155
What the history says
Prices recorded 89
Typical price €137
Lowest we saw €104
You save today €5
Based on 89 prices we recorded on this exact route, compared against the same departure month.
Best booking window
56–83 days — is when this route has been cheapest to book: €118 typical, on 26 observations. That is about €18 less than booking in the last two weeks.
Cheapest months to fly to Siem Reap
January €125 10 observations
November €136 33 observations
December €137 33 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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