Cheapest return flights from Newark to San Juan in May from $189

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

Return flights

05 May - 08 May Frontier Airlines
05 May - 14 May Frontier Airlines
09 May - 14 May Frontier Airlines
06 May - 13 May Frontier Airlines
01 May - 06 May Frontier Airlines
08 May - 12 May Frontier Airlines
03 May - 09 May Frontier Airlines
06 May - 12 May Frontier Airlines
03 May - 08 May Frontier Airlines
19 May - 03 Jun Frontier Airlines
04 May - 06 May Frontier Airlines
28 May - 02 Jun Frontier Airlines
31 May - 09 Jun Frontier Airlines
29 May - 03 Jun Frontier Airlines
30 May - 02 Jun Frontier Airlines
28 May - 04 Jun Frontier Airlines
27 May - 03 Jun Spirit Airlines
27 May - 02 Jun Spirit Airlines
17 May - 01 Jun Spirit Airlines
17 May - 02 Jun Spirit Airlines

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

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