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

Return flights

03 Jul - 07 Jul	Ryanair
01 Jul - 09 Jul	Ryanair
03 Jul - 13 Jul	Ryanair
14 Jul - 21 Jul	Ryanair
15 Jul - 29 Jul	Ryanair
03 Jul - 23 Jul	Ryanair
12 Jul - 26 Jul	Ryanair
16 Jul - 23 Jul	Ryanair
10 Jul - 15 Jul	Ryanair
01 Jul - 11 Aug	Ryanair
16 Jul - 25 Jul	Ryanair
14 Jul - 01 Aug	Ryanair
17 Jul - 19 Aug	Ryanair
27 Jul - 17 Aug	Ryanair
17 Jul - 15 Aug	Ryanair
18 Jul - 03 Aug	Ryanair
23 Jul - 06 Aug	Ryanair
22 Jul - 28 Aug	Ryanair
21 Jul - 13 Aug	Ryanair
15 Jul - 30 Aug	Ryanair

Also check the deals for one-way flights from London to Phnom-penh 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 London to Phnom-penh in July from 763€

Return flights