The news comes after JetBlue and American Airlines both announced plans in the last two months to reduce their service to Cuba, either by scaling back on the number of flights or flying smaller planes to Cuba.
The cutbacks suggest that the nation’s airlines may have overestimated the demand for flights to Cuba when U.S.-based airlines scrambled for the slots offered last year by the Obama administration to fly to Havana and other Cuban cities.
Denver-based Frontier Airlines, which flies one daily flight between Miami and Havana, said it will end that service June 4. An airline spokesman said the cost of operating the route was higher than expected and other carriers offered more seats than needed to meet the demand.
Florida-based Silver, which flies 21 round-trip flights a week, primarily to smaller Cuban cities, said it will end Cuba service on April 22. The carrier also cited excess supply offered by other carriers. …