AirHint found the following cheapest return flights from Dallas-Fort Worth (DFW) to San Juan (SJU) in December 2025 (see full year).

Return flights

03 Dec - 07 Dec	United
03 Dec - 06 Dec	United
02 Dec - 08 Dec	United
04 Dec - 09 Dec	United
05 Dec - 14 Dec	United
04 Dec - 07 Dec	United
24 Dec - 03 Jan	Delta
23 Dec - 03 Jan	Southwest Airlines
22 Dec - 02 Jan	Delta
20 Dec - 13 Jan	United
22 Dec - 04 Jan	United

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

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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Cheapest return flights from Dallas-Fort Worth to San Juan in December from 374€

Return flights