AirHint found the following cheapest return flights from Houston (HOU) to Port-of-spain (POS) in December 2025 (see full year).

Return flights

11 Dec - 18 Dec	American Airlines
12 Dec - 21 Dec	United	direct
14 Dec - 20 Dec	Spirit Airlines
12 Dec - 19 Dec	American Airlines
26 Dec - 31 Dec	United	direct
14 Dec - 21 Dec	American Airlines
14 Dec - 20 Dec	United	direct
17 Dec - 24 Dec	American Airlines
19 Dec - 26 Dec	Spirit Airlines
15 Dec - 22 Dec	American Airlines
21 Dec - 02 Jan	Spirit Airlines
21 Dec - 02 Jan	United	direct
22 Dec - 03 Jan	Frontier Airlines
22 Dec - 03 Jan	United	direct
19 Dec - 03 Jan	Spirit Airlines
20 Dec - 03 Jan	Frontier Airlines
20 Dec - 03 Jan	United	direct
19 Dec - 03 Jan	United	direct

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

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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Cheapest return flights from Houston to Port-of-spain in December from 475€

Return flights