Emirates online check-in opens 48 hours before departure and closes 90 minutes before the flight. For flights to and from the United States, boarding passes are issued 24 hours before due to regulations. Passengers can check in via the website or mobile app. Online check-in may be unavailable if the first flight is operated by another airline, in which case check-in must be done with that airline. After online check-in, luggage can be dropped at designated counters. This process helps speed up airport procedures.