Cheapest one-way flights from London to Phnom-penh in September from $468

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

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

One-Way flights

24 Sep Shenzhen Airlines
14 Sep Shenzhen Airlines
22 Sep Shenzhen Airlines
21 Sep Shenzhen Airlines
07 Sep China Southern
23 Sep China Southern
18 Sep Oman Air
04 Sep China Southern
19 Sep Shenzhen Airlines

Also check the deals for return 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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