AirHint found the following cheapest one-way flights from San Diego (SAN) to Madrid (MAD) in December 2025 (see full year).
One-Way flights
| 04 Dec | Frontier Airlines | ||
| 08 Dec | Frontier Airlines | ||
| 30 Dec | United | ||
| 03 Dec | Delta | ||
| 16 Dec | Air Europa | ||
| 19 Dec | Frontier Airlines |
Also check the deals for return flights from San Diego to Madrid 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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