Originally Posted by
VidaNaPraia
First of all, this is not specific to Southwest, but all airlines flying direct from US to Cuba.
Secondly, while Aduana is aware of this, it is not clear that clinics and hospitals in Cuba are aware of this policy, in case you ever actually need medical care. There is a letter floating around on one of the Cuba forums that explains to clinic staff that the boarding pass serves as proof of insurance. Worth finding, printing and carrying IMO.
Good idea to print that document, too. Some airlines charge separately for the medical insurance (Spirit, $25). Not sure NK passengers also use boarding pass as a proof. In any case, mobile BP isn't a good idea, and WN in general collects BP which they are not doing for Cuba flights.