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

Return flights

30 Aug - 07 Sep	easyJet	direct
26 Aug - 03 Sep	easyJet	direct
30 Aug - 03 Sep	easyJet	direct
26 Aug - 31 Aug	easyJet	direct
23 Aug - 03 Sep	easyJet	direct
23 Aug - 27 Aug	easyJet	direct
19 Aug - 27 Aug	easyJet	direct
16 Aug - 20 Aug	easyJet	direct
30 Aug - 06 Sep	easyJet
19 Aug - 24 Aug	easyJet	direct
23 Aug - 31 Aug	easyJet	direct
16 Aug - 24 Aug	easyJet	direct
12 Aug - 17 Aug	easyJet	direct
23 Aug - 01 Sep	easyJet
29 Aug - 07 Sep	Wizz Air
09 Aug - 13 Aug	easyJet	direct
29 Aug - 01 Sep	easyJet
26 Aug - 30 Aug	easyJet
19 Aug - 06 Sep	easyJet

Also check the deals for one-way flights from Basel 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 Basel to Keflavik in August from 152€

Return flights