Cheapest return flights from Miami to San Juan in January from $124

AirHint found the following cheapest return flights from Miami (MIA) to San Juan (SJU) in January 2026 (see full year).

Return flights

09 Jan - 16 Jan Frontier Airlines direct
18 Jan - 23 Jan Frontier Airlines direct
09 Jan - 26 Jan Frontier Airlines direct
30 Jan - 06 Feb Frontier Airlines direct
01 Jan - 08 Jan Frontier Airlines direct
07 Jan - 11 Jan Frontier Airlines direct
11 Jan - 18 Jan Frontier Airlines direct
05 Jan - 07 Jan Frontier Airlines direct
09 Jan - 18 Jan Frontier Airlines direct
09 Jan - 12 Jan Frontier Airlines direct
03 Jan - 08 Jan Frontier Airlines direct
26 Jan - 05 Feb Spirit Airlines direct
26 Jan - 08 Feb Spirit Airlines direct
26 Jan - 02 Feb Spirit Airlines direct
29 Jan - 05 Feb Spirit Airlines direct
29 Jan - 06 Feb Spirit Airlines direct
29 Jan - 08 Feb Spirit Airlines direct
29 Jan - 02 Feb Spirit Airlines direct
30 Jan - 05 Feb Spirit Airlines direct
30 Jan - 08 Feb Spirit Airlines direct

Also check the deals for one-way flights from Miami to San Juan in January.

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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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