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

Return flights

13 Oct - 20 Oct	Air China
01 Oct - 13 Oct	Air China
01 Oct - 12 Oct	Air China
01 Oct - 17 Oct	Air China
01 Oct - 15 Oct	Air China
02 Oct - 17 Oct	China Southern
03 Oct - 23 Oct	China Southern
07 Oct - 05 Nov	Wizz Air Malta
10 Oct - 26 Oct	Wizz Air UK
03 Oct - 10 Oct	China Southern
03 Oct - 24 Oct	China Southern
28 Oct - 08 Nov	Wizz Air UK
20 Oct - 05 Nov	China Southern
31 Oct - 07 Nov	Wizz Air UK
29 Oct - 08 Nov	Wizz Air UK
25 Oct - 07 Nov	Wizz Air Malta
22 Oct - 07 Nov	Air China
30 Oct - 08 Nov	Wizz Air UK
17 Oct - 17 Nov	China Southern
17 Oct - 16 Nov	Wizz Air Malta

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

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 October from 417€

Return flights