AirHint found the following cheapest return flights from Santander (SDR) to Basel (BSL) in December 2025 (see full year).
Return flights
| 31 Dec - 11 Jan | Iberia | ||
| 18 Dec - 07 Jan | Vueling Airlines | ||
| 19 Dec - 23 Dec | Vueling Airlines | ||
| 13 Dec - 14 Dec | Vueling Airlines | ||
| 25 Dec - 30 Dec | Vueling Airlines | ||
| 17 Dec - 21 Dec | Vueling Airlines |
Also check the deals for one-way flights from Santander to Basel in December.
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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.
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