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

Return flights

18 Oct - 30 Oct	Ryanair
05 Oct - 12 Oct	Ryanair
17 Oct - 17 Nov	Ryanair
01 Oct - 13 Oct	Ryanair
31 Oct - 21 Nov	Ryanair
09 Oct - 17 Oct	Ryanair
16 Oct - 31 Oct	Ryanair
22 Oct - 01 Nov	Ryanair
03 Oct - 18 Oct	Ryanair
17 Oct - 16 Nov	Ryanair
15 Oct - 29 Oct	Ryanair
13 Oct - 31 Oct	Ryanair
25 Oct - 01 Nov	Ryanair
12 Oct - 19 Oct	Emirates
12 Oct - 20 Nov	Emirates
30 Oct - 21 Nov	Emirates
01 Oct - 08 Oct	Emirates
31 Oct - 30 Nov	Emirates
31 Oct - 08 Nov	Emirates
26 Oct - 09 Nov	Emirates

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 719€

Return flights