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

Return flights

03 Dec - 09 Dec	Kuwait Airways
17 Dec - 11 Jan	Kuwait Airways
11 Dec - 26 Jan	AZAL
02 Dec - 15 Jan	AZAL
18 Dec - 19 Jan	AZAL
06 Dec - 29 Dec	AZAL
12 Dec - 14 Jan	AZAL
10 Dec - 10 Jan	AZAL
19 Dec - 11 Jan	AZAL
14 Dec - 14 Jan	AZAL
19 Dec - 16 Jan	AZAL
20 Dec - 11 Jan	AZAL
03 Dec - 10 Dec	IndiGo
06 Dec - 28 Dec	AZAL
21 Dec - 28 Dec	AZAL
10 Dec - 14 Dec	Kuwait Airways
15 Dec - 27 Dec	Kuwait Airways
01 Dec - 07 Dec	AZAL
01 Dec - 28 Dec	AZAL
11 Dec - 26 Dec	Kuwait Airways

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.

Book a cheap hotel in London

Cheap car rent in London

Cheapest return flights from Delhi to London in December from 317€

Return flights