If you want to exchange a ticket purchased at discounted, cheapest, rate, he, as a rule, does not provide for refunds and changes in dates and route of the flight. You'll just have to take the old and buy new tickets, but in some cases the cost of the returned ticket may be credited against a future trip, which will be implemented during the period of its validity. This rate is called upgrade, and provides for the fee for a new ticket if the cost is higher and the penalties specified in the tariff. Usually, penalties are in the order of 1500-4500 rubles.
If a passenger wants to change the date and flight number, but the route remains the same, the terms of exchange are the same – you pay the difference in cost of tickets and fines. If the class of the ticket remains the same, you only have to pay penalties. Some tariffs negotiated the possibility of sharing a ticket only for tickets of a higher class.
Most expensive passenger cost route change route or avoiding the use of the route. For example, if you fly from Moscow to Los Angeles with a stopover in new York, but upon arrival in new York decide to continue their journey by another mode of transport, then the company may cancel your return ticket from Los Angeles to Moscow and you will have to pay again the cost of the return ticket.
If the change is allowed rate, you have the right to exchange your e-ticket. For this you need to complete the application form available on the website of the respective airline and send it, attaching thereto the copy of the passport. Supplement is produced in accordance with the rules of application of this tariff.
The more expensive the purchased tickets, the fewer problems you will have if sharing. Issued full-fare tickets in economy and business classes allow you to change flights, dates and routes during the validity period of the tickets. The most stringent restrictions and regulations apply for cases when the route of your journey is served by several airlines.