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

Return flights

12 May - 19 May	American Airlines
13 May - 20 May	United
23 May - 27 May	jetBlue
29 May - 31 May	American Airlines
08 May - 13 May	Delta
25 May - 30 May	United
26 May - 31 May	United
22 May - 25 May	jetBlue

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

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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Cheapest return flights from New York to San Juan in May from $294

Return flights