Have you missed a flight with JetBlue airlines? Passengers can end up missing their flights due to several reasons. It can be due to traffic, personal reasons, delay or cancellation of a previous flight, etc. JetBlue missed flight regulations give us a number of options in case we have missed our flight due to any genuine reasons. In case you wish to rebook your flight a certain amount of fee would be applicable, this fee can be exempted on flights that are missed because of medical emergencies and health issues. The person requesting fee exemption may be however asked for evidence.