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

Return flights

19 Sep - 22 Sep	Fly Play	direct
18 Sep - 23 Sep	Ryanair
23 Sep - 05 Oct	Wizz Air
25 Sep - 29 Sep	Wizz Air
26 Sep - 02 Oct	Fly Play	direct
24 Sep - 05 Oct	Wizz Air
22 Sep - 29 Sep	Scandinavian Airlines
18 Sep - 22 Sep	Wizz Air
27 Sep - 01 Oct	Scandinavian Airlines
19 Sep - 23 Sep	Fly Play
19 Sep - 29 Sep	Fly Play	direct
29 Sep - 02 Oct	Scandinavian Airlines
04 Sep - 07 Sep	Fly Play	direct
04 Sep - 14 Sep	Fly Play	direct
16 Sep - 23 Sep	Ryanair
29 Sep - 10 Oct	Scandinavian Airlines
29 Sep - 02 Oct	Fly Play	direct
29 Sep - 10 Oct	Fly Play	direct
29 Sep - 03 Oct	Wizz Air
28 Sep - 03 Oct	Wizz Air

Also check the deals for one-way flights from Vilnius to Keflavik in September.

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 September from $197

Return flights