Cheapest return flights from London to Phnom-penh in September from 727€

Best time to book flights for London (LGW) to Phnom-penh (PNH) flights at AirHint

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

Return flights

13 Sep - 22 Sep Air China
30 Sep - 14 Oct Wizz Air UK
01 Sep - 14 Sep Wizz Air UK
16 Sep - 30 Sep SKY express
05 Sep - 20 Sep Corendon Airlines
22 Sep - 30 Sep Singapore Airlines
10 Sep - 17 Sep Singapore Airlines
13 Sep - 27 Sep Air China
04 Sep - 09 Sep China Southern

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

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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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