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

Return flights

10 Dec - 28 Jan	Air Canada
12 Dec - 13 Jan	Air Canada
16 Dec - 16 Jan	Caribbean Airlines
23 Dec - 16 Jan	Caribbean Airlines
19 Dec - 25 Jan	KLM
12 Dec - 26 Dec	KLM
23 Dec - 07 Jan	Caribbean Airlines
22 Dec - 05 Jan	Caribbean Airlines
15 Dec - 02 Jan	KLM
21 Dec - 28 Dec	KLM
20 Dec - 27 Dec	KLM
12 Dec - 13 Dec	Caribbean Airlines
10 Dec - 05 Jan	KLM
27 Dec - 31 Dec	United
29 Dec - 02 Jan	Caribbean Airlines
10 Dec - 17 Dec	KLM
12 Dec - 19 Dec	KLM
11 Dec - 25 Dec	United

Also check the deals for one-way flights from Port-of-spain to London 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 Port-of-spain to London in December from 789€

Return flights