Cheapest return flights from Newark to San Juan in August from $226

Best time to book flights for Newark (EWR) to San Juan (SJU) flights at AirHint

AirHint found the following cheapest return flights from Newark (EWR) to San Juan (SJU) in August 2025 (see full year).

Return flights

16 Aug - 21 Aug United
09 Aug - 15 Aug Frontier Airlines direct
11 Aug - 15 Aug Frontier Airlines direct
03 Aug - 08 Aug Frontier Airlines direct
23 Aug - 27 Aug Spirit Airlines
13 Aug - 20 Aug Frontier Airlines
18 Aug - 22 Aug Frontier Airlines
17 Aug - 22 Aug Frontier Airlines
09 Aug - 14 Aug Frontier Airlines
17 Aug - 21 Aug Frontier Airlines
31 Aug - 06 Sep jetBlue
26 Aug - 09 Sep United
29 Aug - 05 Sep jetBlue
25 Aug - 01 Sep Spirit Airlines
27 Aug - 06 Sep Spirit Airlines
23 Aug - 06 Sep United
26 Aug - 15 Sep Spirit Airlines
28 Aug - 03 Sep Spirit Airlines
28 Aug - 29 Sep American Airlines
27 Aug - 01 Sep Spirit Airlines

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

Skyscanner

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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