Cheapest return flights from London to Phnom-penh in September from 709€

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

Return flights

02 Sep - 02 Oct Air India
03 Sep - 03 Oct Shenzhen Airlines
05 Sep - 11 Sep Shenzhen Airlines
02 Sep - 18 Sep Air India
06 Sep - 29 Sep Shenzhen Airlines
04 Sep - 24 Sep Air India
04 Sep - 03 Oct Air India
07 Sep - 05 Oct Air India
14 Sep - 23 Sep Shenzhen Airlines
15 Sep - 23 Sep Shenzhen Airlines
05 Sep - 07 Sep Turkish Airlines
05 Sep - 18 Sep Air India
12 Sep - 15 Sep Shenzhen Airlines
15 Sep - 10 Oct Shenzhen Airlines
08 Sep - 07 Oct Shenzhen Airlines
19 Sep - 28 Sep Shenzhen Airlines
06 Sep - 06 Oct Etihad Airways
09 Sep - 14 Oct China Southern
19 Sep - 06 Oct Shenzhen Airlines
16 Sep - 15 Oct Air China

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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