JetBlue flight change policy depending on your fare type. For Blue, Blue Plus, and Blue Extra fares, changes are allowed for a fee, plus any fare difference. However, Mint and Even More Space fares offer more generous change options. If you make changes within 24 hours of booking, you won’t incur any fees. In certain situations like cancellations or major schedule shifts, JetBlue allows free flight modifications. Changes can be easily handled online or by reaching out to customer support.