AirHint found the following cheapest return flights from Southampton (SOU) to Budapest (BUD) in December 2025 (see full year).
Return flights
| 12 Dec - 14 Dec | easyJet | ||
| 03 Dec - 10 Dec | Aer Lingus | ||
| 03 Dec - 06 Dec | Aer Lingus | ||
| 04 Dec - 07 Dec | Aer Lingus | ||
| 29 Dec - 31 Dec | Aer Lingus |
Also check the deals for one-way flights from Southampton to Budapest in December.
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