Two more Canadian airlines, Air Transat and WestJet, announced a halt in flights to Cuba . Air Transat said it was canceling all flights to Cuba until at least April 30. This follows "the rapid developments of the past few hours and the announcement by Cuban authorities of an anticipated aviation fuel shortage at destination airports," it said in a statement. Cuba warned on Sunday that jet fuel will be unavailable at airports across the island beginning 10 February through 11 March. WestJet