Flying with Emirates? Make your journey smoother with the convenience of online check-in. Whether you’re traveling for business or leisure, Emirates’ online check-in feature helps you save time, choose your preferred seat, and avoid unnecessary airport hassle. What is Emirates Online Check-In? Online check-in is a service that allows passengers to check in for their flights via the Emirates website or mobile app before arriving at the airport. This feature is available 48 hours before departure and closes 90 minutes before the flight.