AirHint found the following cheapest one-way flights from St. Thomas (STT) to San Juan (SJU) in January 2026 (see full year).
One-Way flights
| 30 Jan | Spirit Airlines | ||
| 22 Jan | Spirit Airlines | ||
| 31 Jan | Spirit Airlines | ||
| 12 Jan | Cape Air | direct | |
| 13 Jan | Cape Air | direct | |
| 01 Jan | Cape Air | direct | |
| 05 Jan | Cape Air | direct | |
| 07 Jan | Spirit Airlines |
Also check the deals for return flights from St. Thomas 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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