Cheapest return flights from Madrid to San Juan in April from $638

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

Return flights

30 Apr - 07 May Avianca
02 Apr - 09 Apr Avianca
01 Apr - 08 Apr Avianca
25 Apr - 01 May United
28 Apr - 05 May Iberia
30 Apr - 04 May Iberia
30 Apr - 07 May Iberia direct
23 Apr - 30 Apr Iberia direct
14 Apr - 21 Apr Iberia
24 Apr - 26 Apr Avianca
18 Apr - 24 Apr Avianca
06 Apr - 13 Apr Iberia
15 Apr - 29 Apr Avianca
02 Apr - 17 Apr Avianca
28 Apr - 03 May British Airways
30 Apr - 03 May British Airways
09 Apr - 19 Apr Iberia direct
29 Apr - 03 May British Airways
26 Apr - 02 May Iberia

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

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