Cheapest return flights from Houston to Port-of-spain in March from $610

AirHint found the following cheapest return flights from Houston (IAH) to Port-of-spain (POS) in March 2026 (see full year).

Return flights

26 Mar - 12 Apr Spirit Airlines
26 Mar - 12 Apr United direct
20 Mar - 01 Apr Frontier Airlines
20 Mar - 01 Apr United direct
12 Mar - 17 Mar United direct
12 Mar - 16 Mar United direct

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

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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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