On Tuesday and Wednesday, Cubana de Aviacion flights to Buenos Aires were canceled because fuel suppliers in Argentina refused to serve the airline.
The companies have invoked "provisions of the United States blockade against Cuba" to not supply the aircraft of the Cuban state airline.
Additionally, this measure has affected other airlines contracted by Cubana de Aviacion, preventing them from fulfilling commitments to passengers.
This surprising decision took place despite the Cuban flights being approved by the Argentina's National Civil Aviation Administration (ANAC).
In response to this situation, the airline has decided to assist affected passengers in Cuba by sending them back on flights operated by other airlines connecting to Argentina. Other passengers will be eligible for a full refund of their airfare.
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During the first quarter of 2024, the Cuban airline transported 3,221 passengers with an occupancy rate of 61 percent. The number of Argentine travelers to Cuba increased by 44 percent compared to the same period last year, reaching 12,753 people.
I was in Miami International Airport two days ago and there was a direct flight to Havana Cuba. There are flights back and forth every day.
American operates more than 49 flights per week from Miami to Havana!. Also Miami to Santiago de Cuba and Varadero 5 days a week, and Santa Clara, Camagüey, Holguín 7 days a week.
Southwest operates flights from Fort Lauderdale to Havana 21 times a week. (3/day), additionally once daily from Tampa to Havana (twice on Saturday).
Delta flies Miami to Havana twice daily
United flies Houston to Havana once daily.
Source: I hope to visit soon and researched
Of course none of these are on Cuba's airline Cubana as I assume the US doesn't allow it.
The Havana to Buenos Aires route is also served once weekly by Euroairlines.