If you need to change the date and time of departure on your ticket, it is important to remember that the editing conditions depend on the airline's rules, the selected fare, time before departure, agency rules (if applicable), and several other factors.
Usually, these rules are available for review during the ticketing process. If you do not remember the conditions, you can always check with the company where the tickets were purchased, or directly with the carrier.
For the most accurate and quick answers and for editing the flight, we recommend that you contact the airline directly. In the confirmation email for your ticket, you will find a link to your booking (usually six letters). Using this link and your first/last name, go to the airline's website and find the booking management page. Enter your details, and here you can see the details of the reservation, the conditions for editing it, and a menu with options for editing the reservation.
In case the flight was booked through the App in the Air application, please write a request to change the date on tickets to us at firstname.lastname@example.org, and we will provide you with all the information you need and help you as quickly as possible.