Are you worried about having missed your flight with JetBlue? To make the rules and regulations regarding missed flights clear to the passengers JetBlue Missed flight policy is n made. Under this policy, if any traveler has missed their flight due to any genuine reason they will be assigned any available standby flight within 2 hours of late arrival. If no standby flights are available the traveler can rebook their flight after paying the JetBlue rebooking fee which can be exempted in case of a medical emergency if the traveler shows the evidential documents of the same.