Cheapest return flights from Newark to San Juan in December from $419

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

02 Dec - 09 Dec jetBlue direct
14 Dec - 19 Dec jetBlue direct
16 Dec - 23 Dec jetBlue direct
18 Dec - 22 Dec jetBlue
18 Dec - 23 Dec jetBlue
18 Dec - 22 Dec jetBlue direct
25 Dec - 29 Dec jetBlue direct
28 Dec - 04 Jan jetBlue direct
27 Dec - 02 Jan jetBlue
17 Dec - 27 Dec jetBlue direct
22 Dec - 02 Jan jetBlue direct
13 Dec - 03 Jan jetBlue direct
23 Dec - 04 Jan jetBlue direct
25 Dec - 02 Jan jetBlue direct
22 Dec - 01 Jan jetBlue direct
18 Dec - 23 Dec United direct
26 Dec - 06 Jan jetBlue
20 Dec - 29 Dec jetBlue
26 Dec - 05 Jan jetBlue
26 Dec - 04 Jan jetBlue

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

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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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