Hello, Passengers can check in online, through the Jetblue JFK Terminal mobile app, or at self-service kiosks located in JFK Terminal 5 according to the airline’s check-in rules. Arrive at least two to three hours before your flight, particularly if you’re traveling abroad. For individuals who have checked their bags, there are baggage drop areas and check-in counters. Check-in at JFK Terminal is made easier by JetBlue, and help is available upon request.