Cheapest return flights from Madrid to San Juan in December from $641

AirHint found the following cheapest return flights from Madrid (MAD) to San Juan (SJU) in December 2025 (see full year).

Return flights

26 Dec - 15 Jan Iberia
24 Dec - 12 Jan Iberia direct
11 Dec - 17 Jan Wizz Air Malta
08 Dec - 14 Dec Iberia
07 Dec - 12 Dec Scandinavian Airlines
04 Dec - 09 Dec British Airways
04 Dec - 11 Dec British Airways
08 Dec - 15 Dec Iberia
28 Dec - 24 Jan Iberia
14 Dec - 23 Dec Iberia direct
02 Dec - 10 Dec British Airways
30 Dec - 13 Jan British Airways
28 Dec - 12 Jan Iberia direct
05 Dec - 14 Dec Iberia direct
10 Dec - 17 Dec Iberia direct
09 Dec - 17 Dec Iberia direct
30 Dec - 13 Jan Iberia direct
31 Dec - 06 Jan Iberia direct
30 Dec - 09 Jan Scandinavian Airlines
24 Dec - 02 Jan Iberia direct

Also check the deals for one-way flights from Madrid to San Juan 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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