AirHint found the following cheapest return flights from Delhi (DEL) to Keflavik (KEF) in August 2025 (see full year).

Return flights

18 Aug - 29 Aug	SWISS
21 Aug - 29 Aug	SWISS
23 Aug - 06 Sep	SWISS
24 Aug - 08 Sep	Lufthansa
13 Aug - 24 Aug	SWISS
13 Aug - 23 Aug	SWISS
20 Aug - 28 Aug	SWISS
23 Aug - 28 Aug	SWISS
25 Aug - 05 Sep	Lufthansa
23 Aug - 28 Sep	Lufthansa
14 Aug - 21 Aug	Finnair
15 Aug - 23 Aug	Finnair
03 Aug - 06 Aug	Finnair
08 Aug - 18 Aug	Lufthansa

Also check the deals for one-way flights from Delhi to Keflavik in August.

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 Keflavik in August from 644€

Return flights