AirHint found the following cheapest return flights from Colombo (CMB) to London (LHR) in July 2026 (see full year).

Return flights

15 Jul - 22 Aug	Etihad Airways
13 Jul - 17 Aug	Air India
31 Jul - 13 Aug	Air India
01 Jul - 08 Jul	Air India
06 Jul - 13 Jul	Air India
03 Jul - 10 Jul	Air India
04 Jul - 11 Jul	Air India
07 Jul - 14 Jul	Air India
28 Jul - 04 Aug	Air India
27 Jul - 03 Aug	Air India
29 Jul - 05 Aug	Air India
30 Jul - 06 Aug	Air India
26 Jul - 02 Aug	Air India
01 Jul - 15 Jul	Air India
08 Jul - 15 Jul	Air India
09 Jul - 16 Jul	Air India
13 Jul - 28 Jul	IndiGo
02 Jul - 16 Jul	Air India
21 Jul - 01 Aug	IndiGo
13 Jul - 17 Aug	SriLankan Airlines	direct

Also check the deals for one-way flights from Colombo 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 Colombo to London in July from 589€

Return flights