Cheapest return flights from Trenton to San Juan in January from 157€

AirHint found the following cheapest return flights from Trenton (TTN) to San Juan (SJU) in January 2026 (see full year).

Return flights

31 Jan - 04 Feb Frontier Airlines
31 Jan - 07 Feb Frontier Airlines
26 Jan - 04 Feb Frontier Airlines
29 Jan - 04 Feb Frontier Airlines
27 Jan - 03 Feb Frontier Airlines
29 Jan - 05 Feb Frontier Airlines
28 Jan - 04 Feb Frontier Airlines
29 Jan - 03 Feb Frontier Airlines
24 Jan - 27 Jan Frontier Airlines
28 Jan - 31 Jan Frontier Airlines
28 Jan - 30 Jan Frontier Airlines
31 Jan - 02 Feb Frontier Airlines
23 Jan - 27 Jan Frontier Airlines
22 Jan - 27 Jan Frontier Airlines
21 Jan - 28 Jan Frontier Airlines
24 Jan - 26 Jan Frontier Airlines
21 Jan - 27 Jan Frontier Airlines
25 Jan - 30 Jan Frontier Airlines
23 Jan - 30 Jan Frontier Airlines
30 Jan - 02 Feb Frontier Airlines

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

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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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