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

Return flights

21 Dec - 29 Jan	IndiGo
22 Dec - 07 Jan	IndiGo
22 Dec - 30 Jan	IndiGo
23 Dec - 08 Jan	Royal Jordanian
27 Dec - 10 Jan	Royal Jordanian
23 Dec - 22 Jan	IndiGo
23 Dec - 23 Jan	IndiGo
23 Dec - 20 Jan	IndiGo
21 Dec - 19 Jan	IndiGo
25 Dec - 10 Jan	IndiGo
25 Dec - 31 Dec	IndiGo
23 Dec - 29 Dec	IndiGo
23 Dec - 30 Dec	IndiGo
22 Dec - 29 Dec	IndiGo
25 Dec - 29 Dec	IndiGo
21 Dec - 28 Dec	IndiGo
25 Dec - 28 Dec	IndiGo
24 Dec - 31 Dec	Air India
24 Dec - 28 Dec	IndiGo
23 Dec - 25 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.

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Cheapest return flights from Mumbai to London in December from 346€

Return flights