Cheapest one-way flights from Houston to Port-of-spain in March from $201

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

One-Way flights

31 Mar Spirit Airlines
11 Mar Spirit Airlines
03 Mar Frontier Airlines
14 Mar Spirit Airlines
07 Mar Spirit Airlines
31 Mar United direct
24 Mar Air Canada
24 Mar United direct
14 Mar United direct
11 Mar United direct

Also check the deals for return 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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