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

Return flights

28 Aug - 04 Sep	Ryanair
28 Aug - 31 Aug	Fly Play	direct
28 Aug - 04 Sep	Fly Play	direct
31 Aug - 14 Sep	Fly Play	direct
29 Aug - 09 Sep	Ryanair
31 Aug - 04 Sep	airBaltic
31 Aug - 04 Sep	Fly Play	direct
31 Aug - 06 Sep	airBaltic
24 Aug - 04 Sep	Finnair
21 Aug - 31 Aug	Finnair
24 Aug - 28 Aug	Finnair
24 Aug - 31 Aug	Finnair
23 Aug - 25 Aug	LOT
21 Aug - 28 Aug	Finnair
24 Aug - 31 Aug	Fly Play	direct
21 Aug - 24 Aug	Finnair
19 Aug - 24 Aug	airBaltic
22 Aug - 31 Aug	Finnair

Also check the deals for one-way flights from Vilnius 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 Vilnius to Keflavik in August from $273

Return flights