Cheapest return flights from Basel to Keflavik in September from $137

Best time to book flights for Basel (BSL) to Keflavik (KEF) flights at AirHint

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

Return flights

02 Sep - 10 Sep easyJet direct
06 Sep - 14 Sep easyJet direct
06 Sep - 17 Sep easyJet direct
16 Sep - 23 Sep easyJet
11 Sep - 14 Sep British Airways
02 Sep - 09 Sep easyJet
25 Sep - 04 Oct British Airways
06 Sep - 13 Sep easyJet
08 Sep - 19 Sep British Airways
19 Sep - 22 Sep British Airways

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

Skyscanner

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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