Cheapest return flights from Madrid to San Juan in December from $585

Best time to book flights for Madrid (MAD) to San Juan (SJU) flights at AirHint

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

Return flights

08 Dec - 16 Dec Finnair direct
04 Dec - 09 Dec Finnair direct
03 Dec - 10 Dec Iberia direct
08 Dec - 15 Dec Finnair direct
30 Dec - 20 Jan British Airways direct
30 Dec - 13 Jan Iberia direct
05 Dec - 12 Dec Iberia direct
13 Dec - 23 Dec British Airways direct
08 Dec - 21 Dec British Airways direct
08 Dec - 18 Dec Finnair direct
02 Dec - 07 Dec British Airways
02 Dec - 11 Dec Delta
22 Dec - 15 Jan American Airlines
22 Dec - 15 Jan Iberia direct
16 Dec - 05 Jan Finnair direct
25 Dec - 11 Jan Air France
25 Dec - 05 Jan Finnair direct
29 Dec - 07 Jan Finnair direct
24 Dec - 05 Jan Finnair direct
29 Dec - 05 Jan Finnair direct

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

Skyscanner

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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