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

Return flights

21 Sep - 05 Oct	Etihad Airways
16 Sep - 26 Sep	Etihad Airways
16 Sep - 27 Oct	Etihad Airways
22 Sep - 28 Sep	Etihad Airways
25 Sep - 12 Oct	Etihad Airways
25 Sep - 15 Oct	Etihad Airways
25 Sep - 29 Sep	Etihad Airways
30 Sep - 13 Oct	Etihad Airways
28 Sep - 06 Oct	Etihad Airways
30 Sep - 08 Oct	Etihad Airways
29 Sep - 21 Oct	Lufthansa
30 Sep - 21 Oct	Lufthansa
22 Sep - 30 Sep	Lufthansa
26 Sep - 29 Oct	Lufthansa
17 Sep - 30 Sep	Lufthansa
17 Sep - 24 Sep	Lufthansa
17 Sep - 29 Sep	Lufthansa
15 Sep - 17 Sep	Air India	direct
17 Sep - 24 Sep	Air India	direct
15 Sep - 22 Sep	Air India	direct

Also check the deals for one-way flights from Bangalore 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 Bangalore to London in September from $496

Return flights