For the cheapest flights to Sofia book 51 days before departure.
The most popular airlines on the route Glasgow - Sofia: Ryanair (FR), British Airways (BA), KLM (KL).
The cheapest flights are on the route Glasgow Intl Airport (GLA) - Sofia Airport (SOF).
Direct flights last about 3h 34min.
Direct flights available 2 days a week - Wednesday, Sunday.
Direct flights: Ryanair (FR).