Cheapest return flights from Newark to San Juan in September from 252€

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

Return flights

10 Sep - 17 Sep jetBlue direct
16 Sep - 23 Sep jetBlue direct
23 Sep - 26 Sep United direct
13 Sep - 20 Sep jetBlue
14 Sep - 21 Sep jetBlue
19 Sep - 26 Sep United direct
11 Sep - 18 Sep jetBlue direct
14 Sep - 21 Sep jetBlue direct
04 Sep - 11 Sep jetBlue direct
03 Sep - 03 Sep Spirit Airlines

Also check the deals for one-way 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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