Cheapest return flights from London to Phnom-penh in December from 593€

Best time to book flights for London (LHR) to Phnom-penh (PNH) flights at AirHint

AirHint found the following cheapest return flights from London (LHR) to Phnom-penh (PNH) in December 2025 (see full year).

Return flights

01 Dec - 10 Dec Air China
04 Dec - 03 Jan Air China
08 Dec - 24 Dec Air China
07 Dec - 03 Jan Air China
07 Dec - 05 Jan Air China
22 Dec - 31 Dec Air China
26 Dec - 02 Jan Air China
13 Dec - 03 Jan KLM
23 Dec - 02 Jan Air China
20 Dec - 03 Jan Air China
24 Dec - 03 Jan Air China
17 Dec - 07 Jan Air China
19 Dec - 03 Jan Air China

Also check the deals for one-way flights from London to Phnom-penh in December.

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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.

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