AirHint found the following cheapest return flights from London (LHR) to Mumbai (BOM) in September 2026 (see full year).

Return flights

06 Sep - 16 Sep	Air France
01 Sep - 24 Sep	KLM
24 Sep - 14 Oct	KLM
07 Sep - 25 Sep	Etihad Airways
13 Sep - 27 Sep	KLM
08 Sep - 19 Sep	KLM
02 Sep - 19 Sep	KLM
09 Sep - 26 Sep	KLM
18 Sep - 09 Oct	Scandinavian Airlines
12 Sep - 26 Sep	Scandinavian Airlines
04 Sep - 27 Sep	Scandinavian Airlines
11 Sep - 26 Sep	Scandinavian Airlines
23 Sep - 02 Oct	KLM
18 Sep - 09 Oct	British Airways	direct
24 Sep - 14 Oct	IndiGo	direct
23 Sep - 02 Oct	IndiGo	direct
24 Sep - 07 Oct	British Airways	direct

Also check the deals for one-way flights from London to Mumbai 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 London to Mumbai in September from 461€

Return flights