AirHint found the following cheapest return flights from London (LHR) to Phnom-penh (PNH) in April 2026 (see full year).

Return flights

02 Apr - 13 Apr	Etihad Airways
10 Apr - 27 Apr	Singapore Airlines
30 Apr - 10 May	British Airways
01 Apr - 22 Apr	Singapore Airlines
02 Apr - 22 Apr	Singapore Airlines
04 Apr - 17 Apr	Singapore Airlines
06 Apr - 26 Apr	British Airways

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

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 April from $864

Return flights