AirHint found the following cheapest return flights from Delhi (DEL) to London (LHR) in May 2026 (see full year).

Return flights

20 May - 09 Jun	Lufthansa
20 May - 30 May	Lufthansa
21 May - 31 May	Lufthansa
20 May - 29 May	SWISS
22 May - 28 May	Etihad Airways
01 May - 08 May	Etihad Airways
14 May - 18 May	Etihad Airways
01 May - 30 May	Finnair
22 May - 30 Jun	Finnair
01 May - 09 May	Finnair
10 May - 17 May	Finnair
09 May - 23 May	Finnair
21 May - 07 Jun	Etihad Airways
29 May - 06 Jun	Finnair
31 May - 21 Jun	Finnair
27 May - 20 Jun	Finnair
20 May - 09 Jun	Air India	direct
27 May - 20 Jun	Air India	direct
21 May - 07 Jun	Air India	direct
29 May - 06 Jun	Air India	direct

Also check the deals for one-way flights from Delhi to London in May.

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 May from 443€

Return flights