"Frontier daily between Chicago O'Hare and Santiago de Cuba beginning Oct. 27, four times weekly on Mondays, Wednesdays, Fridays and Saturdays between Philadelphia and Camaguey beginning Dec. 15; three times weekly on Tuesdays, Thursdays and Sundays between Philadelphia and Santa Clara beginning Dec. 15; and weekly flights on Saturdays between O'Hare and Philadelphia and Varadero starting Jan. 7, 2017. The flights will be on Airbus A320 or A320neo aircraft."

http://www.usatoday.com/story/news/world/2016/06/10/united-states-airlines-scheduled-flights-cuba/85693838/