Cheapest one-way flights from San Juan to Newark in January from $70

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

One-Way flights

30 Jan Spirit Airlines direct
28 Jan Spirit Airlines direct
29 Jan Spirit Airlines direct
24 Jan Frontier Airlines direct
23 Jan Spirit Airlines direct
22 Jan Frontier Airlines direct
27 Jan United direct
14 Jan Frontier Airlines
17 Jan Frontier Airlines
16 Jan Frontier Airlines

Also check the deals for return flights from San Juan to Newark 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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