AirHint found the following cheapest return flights from Glasgow (GLA) to Sofia (SOF) in December 2025 (see full year).
Return flights
| 01 Dec - 05 Dec | easyJet | ||
| 01 Dec - 08 Dec | easyJet | ||
| 06 Dec - 08 Dec | easyJet | ||
| 11 Dec - 16 Dec | easyJet | ||
| 13 Dec - 19 Dec | Ryanair |
Also check the deals for one-way flights from Glasgow to Sofia in December.
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