AirHint found the following cheapest return flights from Washington (IAD) to Port-of-spain (POS) in January 2026 (see full year).

Return flights

30 Jan - 07 Feb	Copa
29 Jan - 07 Feb	Copa
30 Jan - 06 Feb	Copa
22 Jan - 26 Jan	Copa
20 Jan - 24 Jan	Copa
23 Jan - 26 Jan	Air Canada
30 Jan - 13 Feb	Air Canada
28 Jan - 01 Feb	Copa
15 Jan - 19 Jan	Air Canada
16 Jan - 19 Jan	Air Canada
16 Jan - 20 Jan	Copa

Also check the deals for one-way flights from Washington to Port-of-spain in January.

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.

Book a cheap hotel in Port-of-spain

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Cheapest return flights from Washington to Port-of-spain in January from $306

Return flights