Fees may be charged for changes to the ticket in accordance with the conditions of application of tariffs, or changes may not be provided at all. If there are no seats on new flights at a previously paid fare, you may need to pay for the difference in ticket prices — upgrade to a higher fare level. If You have issued tickets on our website, then the ticket can be exchanged automatically on the website through the "My Order" service. In other cases, contact the place of registration of transportation.