When using the jetblue change flight option, understanding the cost implications is key. Some tickets are eligible for free changes, while others come with penalties. The total cost can include a change fee and any difference in fare. If your new itinerary is more expensive, expect to pay the balance. Conversely, if your new flight costs less, you might receive travel credits. Timing ... https://www.flightaura.com/flight-change-policy/jetblue-flight-change-policy/