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

Return flights

06 Oct - 20 Oct	Ryanair
04 Oct - 11 Oct	Ryanair
23 Oct - 06 Nov	Ryanair
01 Oct - 10 Oct	Ryanair
02 Oct - 17 Oct	Ryanair
22 Oct - 29 Oct	Ryanair
15 Oct - 26 Oct	Ryanair
03 Oct - 25 Oct	Ryanair
26 Oct - 06 Nov	Ryanair
09 Oct - 26 Oct	Ryanair
10 Oct - 17 Oct	Ryanair
08 Oct - 22 Oct	Emirates
30 Oct - 20 Nov	Emirates
16 Oct - 01 Nov	Ryanair
30 Oct - 17 Nov	Emirates
31 Oct - 16 Nov	Emirates
30 Oct - 16 Nov	Emirates
31 Oct - 14 Nov	Emirates
24 Oct - 01 Nov	Ryanair
10 Oct - 01 Nov	Ryanair

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 733€

Return flights