AirHint found the following cheapest return flights from Sofia (SOF) to Keflavik (KEF) in May 2026 (see full year).
Return flights
| 08 May - 14 May | Austrian Airlines | ||
| 02 May - 09 May | Lufthansa | ||
| 19 May - 25 May | Wizz Air | ||
| 08 May - 16 May | Austrian Airlines | ||
| 01 May - 04 May | Austrian Airlines | ||
| 27 May - 30 May | Ryanair |
Also check the deals for one-way flights from Sofia to Keflavik in May.
Powered by
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.
Find us on social media