Cheapest return flights from Newark to San Juan in June from $159

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

Return flights

22 Jun - 01 Jul Frontier Airlines
25 Jun - 01 Jul Frontier Airlines
23 Jun - 25 Jun Frontier Airlines direct
22 Jun - 25 Jun Frontier Airlines direct
29 Jun - 01 Jul Spirit Airlines
23 Jun - 26 Jun Frontier Airlines direct
16 Jun - 19 Jun Frontier Airlines direct
16 Jun - 17 Jun Frontier Airlines direct
25 Jun - 26 Jun Frontier Airlines direct
15 Jun - 24 Jun Frontier Airlines direct
16 Jun - 24 Jun Frontier Airlines direct
17 Jun - 18 Jun Frontier Airlines direct
24 Jun - 26 Jun Frontier Airlines direct
30 Jun - 18 Jul Spirit Airlines
30 Jun - 14 Jul Spirit Airlines
30 Jun - 13 Jul Spirit Airlines
30 Jun - 10 Jul Spirit Airlines
30 Jun - 17 Jul Spirit Airlines
30 Jun - 11 Jul Spirit Airlines
25 Jun - 01 Jul Frontier Airlines direct

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

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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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