Cheapest return flights from Newark to San Juan in December from 148€

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

Return flights

31 Dec - 14 Jan jetBlue direct
09 Dec - 17 Dec Frontier Airlines direct
03 Dec - 06 Dec Frontier Airlines
03 Dec - 10 Dec Frontier Airlines
04 Dec - 09 Dec Frontier Airlines direct
04 Dec - 12 Dec Frontier Airlines direct
08 Dec - 15 Dec United
31 Dec - 09 Jan jetBlue direct
08 Dec - 12 Dec Spirit Airlines
08 Dec - 17 Dec Spirit Airlines
04 Dec - 05 Dec Spirit Airlines
08 Dec - 09 Dec Spirit Airlines
31 Dec - 21 Jan Spirit Airlines
31 Dec - 17 Jan Spirit Airlines
30 Dec - 09 Jan United direct
30 Dec - 17 Jan Spirit Airlines
30 Dec - 14 Jan Spirit Airlines
29 Dec - 17 Jan Spirit Airlines
28 Dec - 17 Jan Spirit Airlines
31 Dec - 18 Jan Spirit Airlines

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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