Cheapest return flights from Sofia to Keflavik in September from 210€

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

Return flights

17 Sep - 24 Sep Ryanair
16 Sep - 29 Sep Wizz Air
23 Sep - 29 Sep Wizz Air
16 Sep - 30 Sep Wizz Air
21 Sep - 28 Sep Wizz Air
20 Sep - 30 Sep Ryanair
20 Sep - 27 Sep Ryanair
06 Sep - 12 Sep Ryanair
07 Sep - 12 Sep Ryanair

Also check the deals for one-way flights from Sofia 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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