From 05 January 2022, a private PCR test will be required before you fly to Cuba.

The information below has been taken from the FCO about travel to Cuba:

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Summary

Updated:: 30 December 2021
Latest update:: Updated information on PCR test requirements for everyone travelling to Cuba from 05 January 2022 (‘Summary’ and ‘Entry Requirements’ pages)

Travel to Cuba is subject to entry restrictions.

From 05 January 2022, everyone travelling to Cuba must have certified proof of a negative result of a PCR test taken within 72 hours before travelling to an accredited testing centre in the UK or the country you are travelling from. Children are not exempt. You should not use the NHS testing services to get a test to facilitate your travel to another country. You should arrange to take a private test. You will still be given a PCR test on arrival in Cuba.
Everyone arriving in Cuba will have a PCR test on arrival.
Returning residents (Cuban and foreign nationals) have to self-isolate until they have a second PCR test with a negative result.
Tourists arriving on holiday charter flights will have a PCR test on arrival and be transferred to their holiday resort.
Tourists staying in cases, particulares, should not leave the casa until they receive a negative PCR test result.

PCR Test Required before your holiday to Cuba