For Sunday Airlines flights, online check-in closes 3 hours before departure and opens 24 hours before scheduled departure. Check-in and baggage collection for flights ends 60 minutes before departure on international flights and 40 minutes on domestic flights. After online check-in, the passenger arrives at the international or domestic lounge (depending on the route of the passenger's ticket) no later than 60 minutes before the flight departure time indicated on the ticket and is immediately screened and boarded by presenting a printed boarding pass.

You can check-in online. If you are traveling with baggage exceeding the hand baggage dimensions, you must check-in your baggage at the check-in desk of your flight before the check-in time expires

- unaccompanied children
- passengers with additional seats
- passengers with disabilities
- passengers traveling with an animal
- passengers with a special request (sports equipment, weapons)

Online check-in is performed by a passenger on the official website of the Airline on his own. Airline representatives are not authorized to conduct online check-in for passengers. Also during online check-in a passenger must personally familiarize himself/herself with the list of cargo prohibited for transportation and online check-in rules