Good afternoon, Thank you for contacting the airline Aeroflot.
You can correct/add your passport details on our website www.aeroflot.com . We recommend you to use the main website, not a mobile application. From the main page, please, select "Online services", choose "Check the reservation". Enter the reservation code (PNR) and passenger surname. In the window that opens, see the Passenger details section. There will be available information about the passport data, press EDIT.