Cheapest return EWR–SJU flights, August

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

Return flights

04 Aug - 11 Aug Frontier Airlines
22 Aug - 26 Aug Frontier Airlines
20 Aug - 26 Aug Frontier Airlines
18 Aug - 26 Aug Frontier Airlines
25 Aug - 03 Sep United direct
16 Aug - 19 Aug Frontier Airlines
23 Aug - 27 Aug Frontier Airlines
18 Aug - 26 Aug United direct
04 Aug - 13 Aug Frontier Airlines
19 Aug - 26 Aug United direct
21 Aug - 26 Aug United direct
26 Aug - 02 Sep Frontier Airlines
28 Aug - 01 Sep United direct
31 Aug - 06 Sep Frontier Airlines
30 Aug - 06 Sep Frontier Airlines
31 Aug - 06 Sep United direct
26 Aug - 02 Sep United direct

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

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