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

Return flights

03 Mar - 31 Mar	China Southern
14 Mar - 28 Mar	Lufthansa
06 Mar - 04 Apr	China Southern
23 Mar - 06 Apr	Etihad Airways
27 Mar - 10 Apr	Scandinavian Airlines
27 Mar - 12 Apr	Scandinavian Airlines
21 Mar - 11 Apr	Singapore Airlines

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

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 March from 610€

Return flights