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

Return flights

30 Sep - 07 Oct	Wizz Air	direct
23 Sep - 04 Oct	Wizz Air	direct
27 Sep - 04 Oct	Wizz Air
23 Sep - 07 Oct	Wizz Air	direct
25 Sep - 04 Oct	Wizz Air
27 Sep - 07 Oct	Wizz Air
30 Sep - 02 Oct	Wizz Air	direct
23 Sep - 02 Oct	Wizz Air	direct
24 Sep - 30 Sep	Wizz Air
25 Sep - 30 Sep	Wizz Air
29 Sep - 02 Oct	Wizz Air
11 Sep - 30 Sep	Wizz Air	direct
02 Sep - 02 Oct	Wizz Air Malta
23 Sep - 30 Sep	Wizz Air	direct
11 Sep - 16 Sep	Wizz Air
06 Sep - 16 Sep	Wizz Air
27 Sep - 30 Sep	Wizz Air
11 Sep - 18 Sep	Wizz Air	direct
06 Sep - 09 Sep	Wizz Air
23 Sep - 27 Sep	Wizz Air

Also check the deals for one-way flights from Budapest 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 Budapest to Keflavik in September from $162

Return flights