Cheapest return flights from London to Phnom-penh in December from $585

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

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

Return flights

01 Dec - 28 Dec Air China
10 Dec - 17 Dec British Airways
28 Dec - 15 Jan China Southern
24 Dec - 07 Jan Vueling Airlines
15 Dec - 01 Jan Wizz Air UK
13 Dec - 01 Jan Vueling Airlines
18 Dec - 01 Jan Wizz Air UK
27 Dec - 08 Jan China Airlines
26 Dec - 07 Jan Air China
12 Dec - 20 Jan British Airways
18 Dec - 25 Dec China Southern
24 Dec - 10 Jan Cathay Pacific
15 Dec - 30 Dec China Southern
26 Dec - 16 Jan Cathay Pacific
13 Dec - 27 Dec China Southern
19 Dec - 26 Dec China Southern
21 Dec - 28 Dec China Southern
15 Dec - 29 Dec Singapore Airlines
12 Dec - 26 Dec Emirates

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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