JetBlue allows the use of personal electronic devices during flights, with certain guidelines in place. Passengers may use their devices in airplane mode throughout the flight, which disables cellular service but allows for Wi-Fi and Bluetooth usage if the device supports those features. In general, small devices such as smartphones, tablets, and e-readers can be used from the moment the passenger is seated until disembarkation. However, larger devices, such as laptop computers, must be stowed during takeoff and landing phases of the flight. It is advisable for passengers to follow the crew's instructions regarding when it is appropriate to use their devices. JetBlue's policies may vary, so always check the most current information on their website for any specific regulations related to electronic device use on flights.