Cheapest return flights from Jacksonville to San Juan in January from 151€

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

Return flights

08 Jan - 15 Jan Frontier Airlines
08 Jan - 12 Jan Frontier Airlines
18 Jan - 22 Jan Frontier Airlines
12 Jan - 16 Jan Delta
11 Jan - 15 Jan Frontier Airlines
20 Jan - 29 Jan Delta
29 Jan - 01 Feb Frontier Airlines
30 Jan - 06 Feb Frontier Airlines
15 Jan - 18 Jan Frontier Airlines direct
10 Jan - 15 Jan Frontier Airlines
08 Jan - 14 Jan Frontier Airlines
14 Jan - 18 Jan Breeze Airways
28 Jan - 11 Feb Breeze Airways
30 Jan - 03 Feb Frontier Airlines
24 Jan - 13 Feb Frontier Airlines
31 Jan - 03 Feb Frontier Airlines

Also check the deals for one-way flights from Jacksonville 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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