Cheapest return flights from London to Phnom-penh in December from $546

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 - 08 Dec Air China
01 Dec - 30 Jan Air China
01 Dec - 13 Dec Air China
23 Dec - 30 Dec Ryanair
29 Dec - 18 Jan Malaysia Airlines
05 Dec - 31 Dec Air China
09 Dec - 06 Jan Thai Airways
14 Dec - 31 Dec Wizz Air UK
10 Dec - 04 Jan British Airways
25 Dec - 04 Jan British Airways
25 Dec - 09 Jan British Airways
13 Dec - 31 Dec Ryanair
24 Dec - 31 Dec China Eastern
20 Dec - 10 Jan Ryanair
25 Dec - 10 Jan British Airways
24 Dec - 10 Jan Singapore Airlines
24 Dec - 09 Jan Cathay Pacific

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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