JetBlue allows passengers to check in online starting 24 hours before the scheduled departure of their flight. This service is available through the JetBlue website and mobile app, making it convenient for travelers to complete the check-in process from home or on the go. To check in online, you simply enter your last name along with your confirmation code, e-ticket number, or TrueBlue member number. Once your booking is retrieved, you can confirm your travel details, choose or change your seat depending on availability, and add any necessary extras like checked baggage. After completing the check-in steps, you can either print your boarding pass, email it to yourself, or download it to your smartphone. If you're traveling with only carry-on luggage, you can head straight to airport security with your digital or printed boarding pass. For passengers with checked baggage, online check-in still applies, but you must drop your bags off at the airport bag drop counter. These counters usually open three hours before departure and close 40 minutes before for domestic flights and 60 minutes before for international flights. JetBlue also offers self-service kiosks at many airports where you can check in, print boarding passes, and tag your checked baggage. These kiosks are helpful for those who have not checked in online or who need to make last-minute changes before proceeding through security. Staffed check-in counters are also available at all airports for travelers needing extra help, such as those flying with pets, small children, or needing special assistance. These counters follow the same opening and closing times as bag drop services. In some locations, JetBlue may offer curbside check-in, allowing passengers to check in and leave their bags right at the curb, saving time during peak travel periods. JetBlue recommends arriving at the airport two hours prior to departure for domestic flights and three hours for international flights. This ensures enough time for check-in, security checks, and reaching your departure gate without rushing. For specific destinations like Cuba, earlier check-in may be required, with some flights asking passengers to arrive four hours in advance due to additional processing steps. Once you’ve checked in and passed through security, it’s important to arrive at your gate early. JetBlue boarding gates typically close 15 minutes before departure for domestic flights and 20 minutes before for international routes. If you arrive after the gate closes, you may not be allowed to board even if you have already checked in. JetBlue's check-in system is designed to be user-friendly and efficient, providing multiple ways to complete the process depending on your preferences and travel needs. Whether using the online method, mobile app, kiosk, curbside, or speaking directly with an agent, the key is to complete check-in and arrive at the gate on time. Being prepared and understanding the timeline helps avoid last-minute issues and ensures a smooth start to your journey.