Cheapest return flights from Newark to San Juan in December from $276

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

03 Dec - 10 Dec United direct
04 Dec - 08 Dec United direct
02 Dec - 09 Dec jetBlue direct
03 Dec - 06 Dec jetBlue direct
06 Dec - 08 Jan jetBlue direct
11 Dec - 14 Dec United direct
16 Dec - 28 Dec jetBlue direct
16 Dec - 01 Jan jetBlue direct
22 Dec - 29 Dec jetBlue direct
23 Dec - 27 Dec jetBlue
25 Dec - 06 Jan jetBlue
24 Dec - 31 Dec jetBlue direct
27 Dec - 01 Jan jetBlue direct
27 Dec - 05 Jan jetBlue direct
21 Dec - 31 Dec jetBlue direct
27 Dec - 04 Jan jetBlue direct
23 Dec - 03 Jan jetBlue direct
25 Dec - 06 Jan jetBlue direct
24 Dec - 03 Jan jetBlue direct
25 Dec - 03 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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