Cheapest return flights from Newburgh to San Juan in December from 346€

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

Return flights

05 Dec - 14 Dec Allegiant Air
05 Dec - 07 Dec Allegiant Air
12 Dec - 11 Jan Allegiant Air
11 Dec - 18 Dec Breeze Airways
22 Dec - 26 Dec Allegiant Air
11 Dec - 14 Dec Breeze Airways
07 Dec - 14 Dec Breeze Airways
22 Dec - 28 Dec Allegiant Air
04 Dec - 07 Dec Breeze Airways
14 Dec - 19 Dec Breeze Airways
19 Dec - 01 Jan Allegiant Air
27 Dec - 01 Jan Allegiant Air
19 Dec - 28 Dec Allegiant Air
29 Dec - 05 Jan Allegiant Air
19 Dec - 05 Jan Allegiant Air
29 Dec - 04 Jan Allegiant Air
19 Dec - 04 Jan Allegiant Air
29 Dec - 02 Jan Allegiant Air
19 Dec - 02 Jan Allegiant Air
26 Dec - 04 Jan Allegiant Air

Also check the deals for one-way flights from Newburgh 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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