Cheapest return flights from Newark to San Juan in December from $258

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 December 2025 (see full year).

Return flights

01 Dec - 05 Dec United direct
10 Dec - 17 Dec American Airlines
06 Dec - 13 Dec American Airlines
10 Dec - 17 Dec jetBlue direct
06 Dec - 13 Dec jetBlue direct
02 Dec - 09 Dec jetBlue direct
17 Dec - 24 Dec American Airlines
29 Dec - 05 Jan jetBlue direct
18 Dec - 23 Dec jetBlue
18 Dec - 22 Dec jetBlue
18 Dec - 22 Dec jetBlue direct
27 Dec - 01 Jan jetBlue
27 Dec - 02 Jan jetBlue
27 Dec - 03 Jan jetBlue
27 Dec - 05 Jan jetBlue
26 Dec - 05 Jan jetBlue

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

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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