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

Return flights

11 Dec - 09 Jan	IndiGo
21 Dec - 11 Jan	IndiGo
19 Dec - 31 Dec	IndiGo
14 Dec - 30 Dec	IndiGo
09 Dec - 30 Dec	IndiGo
20 Dec - 09 Jan	IndiGo
18 Dec - 05 Jan	IndiGo
13 Dec - 07 Jan	SWISS
09 Dec - 14 Dec	IndiGo
21 Dec - 31 Jan	IndiGo
27 Dec - 17 Jan	SWISS
20 Dec - 30 Dec	IndiGo
23 Dec - 14 Jan	IndiGo
23 Dec - 17 Jan	IndiGo
06 Dec - 28 Dec	Flynas
19 Dec - 21 Jan	IndiGo
08 Dec - 28 Dec	IndiGo
15 Dec - 28 Dec	Qatar Airways
11 Dec - 18 Dec	IndiGo
20 Dec - 27 Dec	IndiGo

Also check the deals for one-way flights from Mumbai 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.

Book a cheap hotel in London

Cheap car rent in London

Cheapest return flights from Mumbai to London in December from $431

Return flights