Cheapest return flights from Newark to San Juan in January from 88€

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

Return flights

26 Jan - 29 Jan Spirit Airlines direct
19 Jan - 27 Jan Frontier Airlines direct
27 Jan - 29 Jan Frontier Airlines direct
20 Jan - 23 Jan Frontier Airlines direct
06 Jan - 17 Jan Frontier Airlines
07 Jan - 17 Jan Frontier Airlines
11 Jan - 17 Jan Frontier Airlines
20 Jan - 22 Jan Frontier Airlines direct
11 Jan - 22 Jan Frontier Airlines direct
19 Jan - 28 Jan Frontier Airlines direct
27 Jan - 03 Feb Frontier Airlines
20 Jan - 07 Feb Spirit Airlines direct
20 Jan - 04 Feb Spirit Airlines direct
20 Jan - 06 Feb Spirit Airlines direct
20 Jan - 03 Feb Spirit Airlines direct
31 Jan - 03 Feb Spirit Airlines direct
31 Jan - 05 Feb Spirit Airlines direct
28 Jan - 04 Feb Spirit Airlines direct
27 Jan - 03 Feb Spirit Airlines direct
27 Jan - 07 Feb Spirit Airlines direct

Also check the deals for one-way flights from Newark 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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