Confirming that Santiago de Cuba to Dominican Republic route exists

I finish my Cuba trip in Santiago de Cuba and need to connect to South America. As of now, my two options, according to Rome2Rio, are

Get back to Havana, Cuba, then take a flight to my next destination, or
Go from Santiago de Cuba, Cuba to Santo Domingo, Dominican Republic, then connect to my next destination.

According to Cubana's site, the Santiago de Cuba to Santo Domingo route exists, but according to Skyscanner, no flight information comes up for that. This worries me as I would like to make sure that this route exists. I know this may seem trivial, but because I have to pay for these tickets in cash and can't book online or in advance (US citizen), I want to be sure since I plan on booking a connecting flight from Santo Domingo. But if the Santiago de Cuba to Santo Domingo, Dominican Republic route doesn't exist, then I need to change my connecting flight.

Can someone help confirm this from a reliable source?

Best Answer

There is only one definite confirmation and that is the flight. If you are on it, then it exists. Now, you might want to know if it will probably occur in advance and for that, the second best option is the airline itself.

You checked Cubana's site which is a good step.
To do better, call them and ask about that flight when whether it runs a the particular date or dates you are interested in. Some routes are seasonal, so they exist but do not occur for months.

Back to my intro above. I have been booked on a flight and checked-in with a valid boarding pass even already printed and seat assigned yet the flight did not run. I got an email 2 hours before the departure saying it was cancelled. When I called, they said they cancelled my flight for that day. The next day, the same thing happened and they cancelled it for the next 3 days. It just was not getting full enough. Instead I took a 3 hour bus to the next closest airport to get a new flight. They charged me for the change but then I got a 100% refund back to my credit card a few weeks later and an apology.