Cheapest return MAD–SJU flights, December

AirHint found the following cheapest return flights from Madrid (MAD) to San Juan (SJU) in December 2026 (see full year).

Return flights

17 Dec - 16 Jan Finnair direct
17 Dec - 12 Jan Finnair direct
02 Dec - 10 Dec Lufthansa
02 Dec - 09 Dec Lufthansa
03 Dec - 08 Dec Lufthansa
01 Dec - 11 Dec Lufthansa
09 Dec - 17 Dec Iberia direct
03 Dec - 08 Dec Iberia direct
07 Dec - 17 Dec Finnair direct
02 Dec - 09 Dec Finnair direct
02 Dec - 12 Dec Delta
05 Dec - 09 Dec Delta
30 Dec - 16 Jan United
31 Dec - 09 Jan Delta
31 Dec - 10 Jan Delta
30 Dec - 11 Jan Iberia
30 Dec - 16 Jan Iberia direct
29 Dec - 08 Jan British Airways
29 Dec - 07 Jan British Airways
28 Dec - 09 Jan British Airways

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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