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

Return flights

01 Dec - 13 Dec	Wizz Air UK
05 Dec - 15 Dec	Wizz Air UK
11 Dec - 25 Dec	Wizz Air
01 Dec - 15 Dec	Wizz Air UK
11 Dec - 20 Jan	Wizz Air
09 Dec - 31 Dec	Wizz Air
28 Dec - 18 Jan	Wizz Air
13 Dec - 20 Dec	Wizz Air UK
28 Dec - 11 Jan	Wizz Air
13 Dec - 27 Dec	Wizz Air UK
28 Dec - 22 Jan	easyJet
23 Dec - 28 Dec	Fly One
23 Dec - 01 Jan	Fly One
19 Dec - 31 Dec	easyJet
20 Dec - 01 Jan	easyJet
20 Dec - 07 Jan	easyJet
19 Dec - 30 Dec	easyJet
20 Dec - 10 Jan	easyJet
20 Dec - 04 Jan	easyJet
20 Dec - 06 Jan	easyJet

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

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Cheapest return flights from London to Phnom-penh in December from 734€

Return flights