Cheapest one-way flights from Newark to San Juan in January from 31€

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

One-Way flights

27 Jan Frontier Airlines direct
11 Jan Frontier Airlines direct
08 Jan Frontier Airlines direct
07 Jan Frontier Airlines direct
17 Jan Frontier Airlines direct
12 Jan Frontier Airlines direct
26 Jan Spirit Airlines direct
28 Jan Spirit Airlines direct
25 Jan Spirit Airlines direct
24 Jan Spirit Airlines direct

Also check the deals for return 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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