Cheapest return IAD–POS flights, May

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

Return flights

15 May - 18 May Copa
09 May - 16 May Copa
08 May - 15 May Copa
11 May - 08 Jun Air Canada
10 May - 08 Jun Air Canada
14 May - 27 Jun Copa
14 May - 08 Jun Copa

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

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