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

Return flights

03 Dec - 18 Dec	SWISS
02 Dec - 18 Dec	SWISS
02 Dec - 16 Dec	SWISS
31 Dec - 22 Jan	Lufthansa
03 Dec - 28 Jan	SWISS
29 Dec - 29 Jan	SWISS
30 Dec - 30 Jan	Lufthansa
03 Dec - 19 Dec	ITA Airways
04 Dec - 16 Dec	Lufthansa
02 Dec - 17 Dec	ITA Airways
31 Dec - 20 Jan	Lufthansa
03 Dec - 13 Dec	ITA Airways
05 Dec - 16 Dec	SWISS
07 Dec - 18 Dec	SWISS
01 Dec - 30 Jan	SWISS
09 Dec - 29 Jan	SWISS
05 Dec - 18 Dec	SWISS
03 Dec - 20 Jan	ITA Airways
30 Dec - 22 Jan	Lufthansa
09 Dec - 22 Jan	SWISS

Also check the deals for one-way flights from London to Delhi 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 Delhi in December from 485€

Return flights