Cheapest return flights from Trenton to San Juan in July from $404

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

01 Jul - 08 Jul Frontier Airlines
04 Jul - 11 Jul Frontier Airlines
05 Jul - 09 Jul Frontier Airlines
27 Jul - 07 Aug Frontier Airlines
27 Jul - 08 Aug Frontier Airlines
25 Jul - 03 Aug Frontier Airlines
23 Jul - 06 Aug Frontier Airlines
18 Jul - 02 Aug Frontier Airlines
12 Jul - 19 Jul Frontier Airlines
17 Jul - 31 Jul Frontier Airlines
23 Jul - 27 Jul Frontier Airlines
02 Jul - 05 Jul Frontier Airlines
04 Jul - 07 Jul Frontier Airlines
20 Jul - 26 Jul Frontier Airlines
11 Jul - 18 Jul Frontier Airlines
27 Jul - 01 Aug Frontier Airlines
29 Jul - 03 Aug Frontier Airlines
28 Jul - 01 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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