Cheapest return flights from Newark to San Juan in September from $217

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

Return flights

23 Sep - 30 Sep United direct
08 Sep - 22 Sep Delta
08 Sep - 22 Sep United direct
02 Sep - 08 Sep Spirit Airlines
24 Sep - 29 Sep United
24 Sep - 01 Oct United
02 Sep - 08 Sep United direct
10 Sep - 20 Sep American Airlines
10 Sep - 20 Sep jetBlue direct
24 Sep - 29 Sep jetBlue direct
24 Sep - 01 Oct jetBlue direct

Also check the deals for one-way flights from Newark to San Juan in September.

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