To change or upgrade your copyright flight, visit the official website and go to the “Manage Trips” section. For assistance, call +18002307697 to speak with a representative. Enter your confirmation code and last name to access your booking. You can modify your flight or purchase upgrades like “Even More Space” seats for extra legroom. To enjoy JetBlue Mint, book a Mint fare or reques... https://flyavionic.com/how-to-change-and-upgrade-my-jet-blue-airlines-flight/