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

Best time to book flights for Sofia (SOF) to Keflavik (KEF) flights at AirHint

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

Return flights

02 Oct - 05 Oct LOT
01 Oct - 11 Oct Ryanair

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

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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