AirHint found the following cheapest return flights from London (LCY) to Mumbai (BOM) in December 2025 (see full year).

Return flights

30 Dec - 15 Jan	SWISS
02 Dec - 15 Dec	SWISS
02 Dec - 17 Dec	SWISS
02 Dec - 19 Dec	SWISS
09 Dec - 24 Dec	SWISS
09 Dec - 23 Dec	SWISS
01 Dec - 07 Dec	KLM
02 Dec - 09 Dec	SWISS
02 Dec - 13 Jan	SWISS
04 Dec - 17 Dec	SWISS
11 Dec - 15 Jan	SWISS
04 Dec - 15 Jan	SWISS
05 Dec - 16 Dec	SWISS
09 Dec - 07 Jan	SWISS
09 Dec - 30 Dec	SWISS
26 Dec - 16 Jan	SWISS
09 Dec - 06 Jan	SWISS
04 Dec - 21 Jan	SWISS
11 Dec - 21 Jan	SWISS
30 Dec - 14 Jan	Lufthansa

Also check the deals for one-way flights from London to Mumbai 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 London to Mumbai in December from $787

Return flights