Cheapest one-way flights from Newark to San Juan in September from $111

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

One-Way flights

17 Sep jetBlue direct
18 Sep jetBlue direct
01 Sep Spirit Airlines
02 Sep Spirit Airlines
08 Sep Spirit Airlines
01 Sep Spirit Airlines direct
02 Sep Spirit Airlines direct
08 Sep Spirit Airlines direct
07 Sep jetBlue direct
28 Sep jetBlue direct

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

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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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