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

Return flights

22 Jan - 27 Jan	Spirit Airlines
22 Jan - 24 Jan	Spirit Airlines
22 Jan - 10 Feb	Spirit Airlines
22 Jan - 11 Feb	Spirit Airlines
06 Jan - 24 Jan	Spirit Airlines
07 Jan - 24 Jan	Spirit Airlines
08 Jan - 27 Jan	Spirit Airlines
08 Jan - 24 Jan	Spirit Airlines
09 Jan - 27 Jan	Spirit Airlines
09 Jan - 24 Jan	Spirit Airlines
22 Jan - 08 Feb	Spirit Airlines
06 Jan - 27 Jan	Spirit Airlines
07 Jan - 27 Jan	Spirit Airlines
19 Jan - 08 Feb	Spirit Airlines

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

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.

Book a cheap hotel in San Juan

Cheap car rent in San Juan

Cheapest return flights from Charlotte to San Juan in January from $306

Return flights