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

Return flights

31 Jul - 27 Aug	China Eastern
28 Jul - 27 Aug	China Eastern
27 Jul - 27 Aug	China Eastern
23 Jul - 27 Aug	China Eastern
24 Jul - 27 Aug	China Eastern
25 Jul - 27 Aug	China Eastern
26 Jul - 27 Aug	China Eastern
29 Jul - 27 Aug	China Eastern
30 Jul - 27 Aug	China Eastern
21 Jul - 27 Aug	China Eastern
24 Jul - 31 Jul	China Eastern
19 Jul - 28 Jul	China Eastern
17 Jul - 25 Jul	China Eastern
07 Jul - 14 Jul	China Eastern
17 Jul - 24 Jul	Emirates
03 Jul - 24 Jul	Emirates
06 Jul - 19 Jul	Emirates
05 Jul - 18 Jul	Emirates
11 Jul - 19 Jul	Emirates

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

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 Phnom-penh to London in July from 577€

Return flights