Cheapest return flights from Santiago to San Juan in December from 159€

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

Return flights

06 Dec - 13 Dec Spirit Airlines
06 Dec - 12 Dec Spirit Airlines
16 Dec - 31 Dec jetBlue direct
06 Dec - 25 Dec Spirit Airlines
15 Dec - 25 Dec Spirit Airlines
17 Dec - 03 Jan jetBlue direct
17 Dec - 25 Dec Spirit Airlines
06 Dec - 23 Dec Spirit Airlines
30 Dec - 06 Jan Spirit Airlines
15 Dec - 23 Dec Spirit Airlines
17 Dec - 06 Jan Spirit Airlines
25 Dec - 04 Jan jetBlue direct
15 Dec - 03 Jan Spirit Airlines
17 Dec - 23 Dec Spirit Airlines
30 Dec - 03 Jan Spirit Airlines

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

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