Cheapest return flights from Siem-reap to London in December from $1158
AirHint found the following cheapest return flights from Siem-reap (REP) to London (LHR) in December 2025 (see full year).
Return flights
| 21 Dec - 04 Jan | VietJet Air | ||
| 20 Dec - 04 Jan | Vietnam Airlines |
Also check the deals for one-way flights from Siem-reap to London in December.
The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.
