AirHint found the following cheapest one-way flights from New York (JFK) to San Juan (SJU) in July 2025 (see full year).

One-Way flights

22 Jul	Frontier Airlines	direct
14 Jul	jetBlue	direct
13 Jul	Frontier Airlines	direct
16 Jul	Frontier Airlines	direct
21 Jul	jetBlue	direct
09 Jul	Frontier Airlines	direct
10 Jul	jetBlue	direct
12 Jul	Frontier Airlines	direct
18 Jul	jetBlue	direct
23 Jul	Frontier Airlines	direct

Also check the deals for return flights from New York to San Juan in July.

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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Cheapest one-way flights from New York to San Juan in July from 61€

One-Way flights