AirHint found the following cheapest return flights from Washington (DCA) to Port-of-spain (POS) in December 2025 (see full year).
Return flights
| 25 Dec - 17 Jan | Air Canada | ||
| 06 Dec - 09 Dec | jetBlue | ||
| 22 Dec - 29 Dec | United | ||
| 14 Dec - 16 Dec | United | ||
| 19 Dec - 30 Dec | United | ||
| 20 Dec - 23 Dec | United | ||
| 19 Dec - 07 Jan | United |
Also check the deals for one-way flights from Washington to Port-of-spain in December.
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