Cheapest return flights from Trenton to San Juan in July from $380

Best time to book flights for Trenton (TTN) to San Juan (SJU) flights at AirHint

AirHint found the following cheapest return flights from Trenton (TTN) to San Juan (SJU) in July 2025 (see full year).

Return flights

02 Jul - 08 Jul Frontier Airlines
04 Jul - 11 Jul Frontier Airlines
01 Jul - 15 Jul Frontier Airlines
05 Jul - 07 Jul Frontier Airlines
17 Jul - 21 Jul Frontier Airlines
17 Jul - 01 Aug Frontier Airlines
09 Jul - 14 Jul Frontier Airlines
16 Jul - 01 Aug Frontier Airlines
15 Jul - 22 Jul Frontier Airlines
15 Jul - 18 Jul Frontier Airlines
10 Jul - 14 Jul Frontier Airlines
01 Jul - 07 Jul Frontier Airlines
30 Jul - 15 Aug Frontier Airlines
18 Jul - 01 Aug Frontier Airlines
31 Jul - 03 Aug Frontier Airlines
26 Jul - 03 Aug Frontier Airlines
31 Jul - 02 Aug Frontier Airlines

Also check the deals for one-way flights from Trenton to San Juan in July.

Skyscanner

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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