AirHint found the following cheapest return flights from Basel (BSL) to Keflavik (KEF) in October 2025 (see full year).

Return flights

25 Oct - 26 Oct	easyJet	direct
14 Oct - 26 Oct	easyJet	direct
21 Oct - 26 Oct	easyJet	direct
14 Oct - 15 Oct	easyJet	direct
25 Oct - 29 Oct	easyJet
07 Oct - 15 Oct	easyJet	direct
18 Oct - 26 Oct	easyJet	direct
11 Oct - 15 Oct	easyJet	direct
25 Oct - 28 Oct	easyJet
25 Oct - 01 Nov	easyJet
14 Oct - 19 Oct	easyJet	direct
25 Oct - 02 Nov	easyJet
31 Oct - 07 Nov	Wizz Air
18 Oct - 01 Nov	easyJet
27 Oct - 02 Nov	Wizz Air
19 Oct - 02 Nov	Austrian Airlines

Also check the deals for one-way flights from Basel to Keflavik in October.

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 Basel to Keflavik in October from $97

Return flights