AirHint found the following cheapest return flights from Washington (IAD) to Port-of-spain (POS) in April 2026 (see full year).
Return flights
| 24 Apr - 11 May | Air Canada | ||
| 01 Apr - 09 Apr | United | ||
| 01 Apr - 08 Apr | United | ||
| 01 Apr - 07 Apr | United | ||
| 01 Apr - 06 Apr | United | ||
| 13 Apr - 18 Apr | United |
Also check the deals for one-way flights from Washington to Port-of-spain in April.
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