Cheapest return flights from Newark to San Juan in January from $103

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

Return flights

27 Jan - 07 Feb Spirit Airlines direct
12 Jan - 30 Jan Frontier Airlines direct
26 Jan - 11 Feb Spirit Airlines direct
31 Jan - 07 Feb Spirit Airlines direct
21 Jan - 28 Jan Spirit Airlines
25 Jan - 28 Jan Spirit Airlines
09 Jan - 14 Jan Spirit Airlines direct
21 Jan - 28 Jan Spirit Airlines direct
25 Jan - 28 Jan Spirit Airlines direct
25 Jan - 10 Feb Spirit Airlines direct
25 Jan - 07 Feb Spirit Airlines direct
25 Jan - 03 Feb Spirit Airlines direct
27 Jan - 10 Feb Spirit Airlines direct
27 Jan - 03 Feb Spirit Airlines direct
20 Jan - 07 Feb Spirit Airlines direct
20 Jan - 03 Feb Spirit Airlines direct
12 Jan - 22 Jan Frontier Airlines
24 Jan - 28 Jan Spirit Airlines
12 Jan - 17 Jan Frontier Airlines direct
21 Jan - 29 Jan 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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