AirHint found the following cheapest one-way flights from Trenton (TTN) to San Juan (SJU) in July 2026 (see full year).
One-Way flights
| 16 Jul | Allegiant Air | ||
| 29 Jul | Frontier Airlines | ||
| 15 Jul | Frontier Airlines | ||
| 14 Jul | Frontier Airlines | ||
| 09 Jul | Frontier Airlines | ||
| 23 Jul | Frontier Airlines | ||
| 11 Jul | Frontier Airlines | ||
| 08 Jul | Frontier Airlines |
Also check the deals for return flights from Trenton to San Juan in July.
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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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