Understand jetBlue Airlines' Policies: Before making any changes, it's crucial to familiarize yourself with jetBlue Airlines' policies regarding cancellations, changes, fees, and refunds. These policies can vary based on factors such as the type of ticket you purchased, the fare rules associated with it, and whether your ticket is refundable or non-refundable. Review Your Ticket: Locate your jetBlue Airlines flight confirmation or ticket information. This typically includes your confirmation number or ticket number, as well as details about your itinerary, such as the flight dates, times, and destinations.