What is the cheapest month to fly from Sofia to Kastoria?

Based on current 6-month forward fare data, May 2026 is the cheapest month to fly from Sofia (SOF) to Kastoria (KSO), with fares starting from $350.

What is the lowest current fare from SOF to KSO?

The lowest currently-listed fare from Sofia (SOF) to Kastoria (KSO) is $350 on 2026-05-29.

Is there a direct flight from Sofia to Kastoria?

There is currently no non-stop service from SOF to KSO. Most travellers connect through a hub airport. See our route page for current stopover options.

Cheap flights from Sofia to Kastoria

Cheapest current fares: $350 in May 2026 on connecting flights.

Last updated May 23, 2026 · By Flightmaps Editorial

Cheapest month-by-month fares

Lowest available fare per calendar month from Sofia (SOF) to Kastoria (KSO). Refreshed daily.

Sofia (SOF) → Kastoria (KSO)

May 2026 $350

Frequently asked questions

What is the cheapest month to fly from Sofia to Kastoria?

Based on current 6-month forward fare data, May 2026 is the cheapest month to fly from Sofia (SOF) to Kastoria (KSO), with fares starting from $350.
What is the lowest current fare from SOF to KSO?

The lowest currently-listed fare from Sofia (SOF) to Kastoria (KSO) is $350 on 2026-05-29.
Is there a direct flight from Sofia to Kastoria?

There is currently no non-stop service from SOF to KSO. Most travellers connect through a hub airport. See our route page for current stopover options.

Related guides for this route

Sibling pages — full route detail, airport overviews, visa context, per-airline routes.