AirHint found the following cheapest return flights from London (STN) to Colombo (CMB) in July 2025 (see full year).

Return flights

16 Jul - 19 Jul	Ryanair
08 Jul - 20 Jul	Ryanair
07 Jul - 20 Jul	Ryanair
16 Jul - 22 Jul	Ryanair
16 Jul - 24 Jul	Ryanair
07 Jul - 21 Jul	Ryanair
11 Jul - 20 Jul	Ryanair
07 Jul - 14 Jul	Ryanair
06 Jul - 20 Jul	Ryanair
02 Jul - 20 Jul	Ryanair
16 Jul - 01 Aug	Ryanair
06 Jul - 03 Aug	Jet2
09 Jul - 05 Aug	Pegasus Airlines
09 Jul - 01 Aug	Pegasus Airlines
16 Jul - 03 Aug	Ryanair
08 Jul - 01 Aug	Ryanair
07 Jul - 01 Aug	Ryanair
27 Jul - 03 Aug	Ryanair
14 Jul - 03 Aug	Ryanair
15 Jul - 01 Aug	Ryanair

Also check the deals for one-way flights from London to Colombo 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 Colombo in July from 547€

Return flights