AirHint found the following cheapest return flights from Washington (IAD) to Port-of-spain (POS) in August 2025 (see full year).
Return flights
| 19 Aug - 26 Aug | United | ||
| 20 Aug - 27 Aug | Copa | ||
| 27 Aug - 31 Aug | United | ||
| 27 Aug - 03 Sep | Copa | ||
| 28 Aug - 30 Aug | United | ||
| 17 Aug - 01 Sep | United | ||
| 29 Aug - 01 Sep | United |
Also check the deals for one-way flights from Washington to Port-of-spain in August.
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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