AirHint found the following cheapest return flights from Trenton (TTN) to San Juan (SJU) in March 2026 (see full year).
Return flights
| 05 Mar - 09 Mar | Frontier Airlines | ||
| 04 Mar - 07 Mar | Frontier Airlines | ||
| 12 Mar - 16 Mar | Frontier Airlines | ||
| 11 Mar - 16 Mar | Frontier Airlines | ||
| 30 Mar - 06 Apr | Frontier Airlines |
Also check the deals for one-way flights from Trenton to San Juan in March.
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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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