How do you change your seat on Jet Blue?

To change your seat on JetBlue, log in to your account on the JetBlue website or app and navigate to your flight details. Select the "Change Seats" option and choose a new seat from the available options. If you wish to change your seat after check-in, you can still do so online or at the airport, depending on availability. Keep in mind that some seat changes may incur additional fees.