Cheapest one-way EWR–SJU flights, September

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

One-Way flights

02 Sep Delta
06 Sep Frontier Airlines
13 Sep Frontier Airlines
12 Sep Frontier Airlines
06 Sep jetBlue direct
13 Sep United direct
02 Sep jetBlue direct
18 Sep Frontier Airlines
10 Sep Frontier Airlines
27 Sep United 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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