Want to know what happens when you’re declared a no-show passenger on a JetBlue flight? JetBlue no show policy applies to passengers who have not arrived at the checkpoint by the time of departure due to any reason. It can be due to a medical emergency, delay in security check-in, or personal issues. Under this policy, a stand-by flight, if available, is alloted to no-show passengers if they arrive within 2 hours with some additional fee. In case of delay due to medical emergencies, no such fee is charged if relevant documents are shown by the traveler which prove their reason.