Emirates Airlines offers online check-in starting 48 hours before your flight's scheduled departure time. This service is available through the Emirates website or the Emirates mobile app. Online check-in closes 90 minutes before departure for all passengers with e-tickets. During the online check-in process, passengers can select seats, update traveler information, and receive a digital boarding pass. If traveling with checked baggage, passengers must drop off their luggage at the airport check-in counter or designated bag drop area. For flights departing from Dubai, passengers can drop off their bags 24 hours before departure, or 12 hours before departure if flying to the U.S. It's important to note that online check-in is not available if the first flight in your itinerary is not operated by Emirates, such as codeshare flights with other airlines. Additionally, passengers traveling with infants, unaccompanied minors, or those requiring special assistance may need to check in at the airport. Emirates recommends arriving at the airport at least 3 hours before departure for international flights and 2 hours before for domestic flights, even if you have checked in online. This allows ample time for security screening, passport control, and any unforeseen delays. For flights departing from Dubai, passengers should proceed to the designated check-in counters or self-service kiosks to drop off their checked baggage and obtain a boarding pass. In summary, online check-in for Emirates flights opens 48 hours before departure and closes 90 minutes prior to takeoff. Passengers are encouraged to complete online check-in early to select preferred seats and expedite the airport process. However, certain conditions and exceptions apply, so it's advisable to review Emirates' specific policies or contact their customer service for detailed information.(airlineshq.com, emirates.com, emirates.com, emirates.com)