AirHint found the following cheapest return flights from Kochi (COK) to London (LHR) in September 2025 (see full year).

Return flights

06 Sep - 28 Sep	Air India
05 Sep - 03 Oct	Air India
11 Sep - 24 Oct	Air India
04 Sep - 19 Sep	Air India
04 Sep - 07 Sep	Air India
16 Sep - 22 Sep	IndiGo
10 Sep - 08 Oct	IndiGo
18 Sep - 30 Sep	Air India
10 Sep - 30 Sep	Air India
16 Sep - 02 Oct	Air India
09 Sep - 16 Sep	Air India
17 Sep - 30 Sep	Air India
11 Sep - 30 Sep	Air India
23 Sep - 29 Sep	Air India
08 Sep - 02 Oct	Air India
09 Sep - 06 Oct	Air India
14 Sep - 08 Oct	Air India
20 Sep - 08 Oct	IndiGo
16 Sep - 08 Oct	Air India
16 Sep - 01 Oct	Air India

Also check the deals for one-way flights from Kochi to London in September.

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 Kochi to London in September from 468€

Return flights