Cheapest one-way flights from Trenton to San Juan in June from $176

AirHint found the following cheapest one-way flights from Trenton (TTN) to San Juan (SJU) in June 2026 (see full year).

One-Way flights

01 Jun Frontier Airlines
14 Jun Allegiant Air
04 Jun Frontier Airlines
17 Jun Frontier Airlines
26 Jun Frontier Airlines

Also check the deals for return flights from Trenton to San Juan in June.

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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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