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

Return flights

12 Dec - 04 Jan	Kuwait Airways
23 Dec - 30 Dec	Finnair
05 Dec - 02 Jan	Finnair
17 Dec - 27 Dec	Finnair
13 Dec - 27 Dec	Finnair
25 Dec - 28 Dec	Finnair
23 Dec - 03 Jan	Finnair
23 Dec - 04 Jan	Finnair
25 Dec - 31 Dec	Finnair
20 Dec - 29 Dec	Finnair
05 Dec - 04 Jan	Finnair
23 Dec - 05 Jan	Finnair
22 Dec - 05 Jan	Finnair
20 Dec - 11 Jan	Finnair
23 Dec - 28 Dec	Finnair
18 Dec - 27 Dec	Finnair
02 Dec - 09 Dec	Finnair
18 Dec - 28 Dec	Finnair
25 Dec - 06 Jan	Finnair
20 Dec - 03 Jan	Finnair

Also check the deals for one-way flights from Delhi 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 Delhi to London in December from $567

Return flights