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

Return flights

21 Dec - 10 Jan	Lufthansa
26 Dec - 10 Jan	Lufthansa
23 Dec - 30 Jan	Lufthansa
22 Dec - 15 Jan	Lufthansa
24 Dec - 21 Jan	Lufthansa
23 Dec - 28 Jan	Lufthansa
26 Dec - 16 Jan	Lufthansa
24 Dec - 14 Jan	Lufthansa
23 Dec - 22 Jan	Lufthansa
26 Dec - 13 Jan	Lufthansa
21 Dec - 31 Dec	Lufthansa
24 Dec - 31 Dec	Lufthansa
24 Dec - 31 Dec	Air India	direct
26 Dec - 31 Dec	Air India
21 Dec - 31 Dec	Air India	direct
20 Dec - 31 Dec	Air India	direct
26 Dec - 31 Dec	Air India	direct
22 Dec - 31 Dec	Air India	direct
21 Dec - 28 Dec	Lufthansa
24 Dec - 30 Dec	KLM

Also check the deals for one-way flights from Bangalore to London in December.

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 December from 432€

Return flights