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

Return flights

02 Dec - 24 Dec	KLM
02 Dec - 23 Dec	KLM
13 Dec - 03 Jan	Aegean Airlines
01 Dec - 22 Dec	KLM
02 Dec - 17 Dec	KLM
01 Dec - 07 Dec	Oman Air
05 Dec - 11 Dec	Oman Air
01 Dec - 08 Dec	Oman Air
01 Dec - 04 Dec	Oman Air
01 Dec - 10 Dec	Oman Air
05 Dec - 10 Dec	Oman Air
08 Dec - 22 Jan	Oman Air
01 Dec - 30 Jan	Oman Air
05 Dec - 25 Jan	Oman Air
31 Dec - 12 Jan	British Airways
27 Dec - 17 Jan	British Airways
07 Dec - 12 Jan	British Airways
08 Dec - 09 Jan	British Airways
30 Dec - 11 Jan	British Airways
26 Dec - 17 Jan	British Airways

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 453€

Return flights