You can check in online for JetBlue flights starting 24 hours before your scheduled departure time and up to 40 minutes before domestic flights or 60 minutes before international flights. This option is available through JetBlue’s official website or mobile app, providing a convenient way to avoid lines at the airport. To begin, you need to enter your reservation confirmation number, e-ticket number, or the email address associated with your booking along with your last name. Once your flight details are displayed, you can confirm your personal information, select or change your seat if available, and add any extras such as additional baggage or priority boarding. After completing the process, you will be able to download, print, or save your boarding pass on your mobile device, which you can then use to proceed directly to security if you have no checked baggage. If you need to check bags, you must visit the airline’s baggage drop counters at the airport prior to the check-in cutoff time. It is important to adhere to these deadlines because failure to check in on time or drop off luggage may result in denied boarding. While online check-in is available for most passengers, some restrictions apply. Travelers accompanied by pets in the cabin, unaccompanied minors, passengers requiring special assistance, or those traveling with certain international documentation may be required to check in at the airport counters for additional verification. JetBlue provides self-service kiosks at many airports where you can also check in, print boarding passes, and tag checked bags, which can be a helpful alternative if you miss the online window or prefer handling it in person. Using the mobile app for check-in not only speeds up the process but also gives you real-time updates on flight status, gate changes, and boarding times, keeping you informed and prepared. JetBlue recommends arriving at the airport at least two hours before departure for domestic flights and three hours for international flights, allowing enough time for baggage drop, security screening, and other procedures. If you have completed online check-in and are traveling with carry-on luggage only, you can proceed directly to security checkpoints without visiting the ticket counter. It is always important to carry proper identification and any required travel documents, including passports, visas, or health declarations, as these will be checked during boarding. If you are connecting to other flights on separate tickets or different airlines, confirm the check-in procedures and baggage transfer policies to avoid complications. In summary, JetBlue’s online check-in process opens 24 hours before departure and closes 40 to 60 minutes prior depending on the flight type. It allows passengers to conveniently select seats, manage their reservation, and obtain boarding passes in advance. Passengers with checked luggage should drop bags at the airport counters within the designated timeframe. Certain passenger categories must check in at the airport. Mobile app check-in and self-service kiosks provide additional options for convenience. Following JetBlue’s recommended arrival times and check-in deadlines ensures a smooth start to your journey.