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

Return flights

01 Jul - 08 Jul	Air India
25 Jul - 22 Aug	Air India
30 Jul - 13 Aug	Air India
31 Jul - 13 Aug	Air India
03 Jul - 06 Jul	Air India
02 Jul - 09 Jul	Air India
01 Jul - 03 Jul	Air India
03 Jul - 05 Jul	Air India
24 Jul - 08 Aug	Air India
03 Jul - 10 Jul	Air India
08 Jul - 15 Jul	Air India
06 Jul - 13 Jul	Air India
07 Jul - 14 Jul	Air India
04 Jul - 15 Jul	Air India
08 Jul - 05 Aug	Air India
06 Jul - 05 Aug	Air India
07 Jul - 05 Aug	Air India
09 Jul - 05 Aug	Air India
25 Jul - 22 Aug	SriLankan Airlines	direct
09 Jul - 05 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 626€

Return flights