Cheapest return flights from London to Phnom-penh in March from $651

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

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

Return flights

07 Mar - 16 Mar Air China
03 Mar - 31 Mar Air China
01 Mar - 16 Mar Air China
01 Mar - 29 Mar Air China
17 Mar - 28 Mar Air China
03 Mar - 15 Mar Air China
12 Mar - 29 Mar Air China
19 Mar - 28 Mar Air China
08 Mar - 18 Mar Air China
01 Mar - 09 Mar Air China
16 Mar - 06 Apr China Southern
20 Mar - 01 Apr China Southern
27 Mar - 06 Apr China Southern
18 Mar - 15 Apr China Southern
15 Mar - 25 Apr China Southern
29 Mar - 05 Apr China Southern
27 Mar - 29 Apr China Southern
30 Mar - 19 Apr Singapore Airlines
28 Mar - 19 Apr Thai Airways
27 Mar - 19 Apr EVA Air

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

Skyscanner

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.

Book a cheap hotel in Phnom-penh

Cheap car rent in Phnom-penh