Aeroflot

Besides waiting for discount price, you can also save money with the "Secure the Ticket Price for 48 Hours" service offered by the airline. What does this option entail and what do you get? For a booking fee of 10 GBP (14 USD), the price of the selected ticket will be frozen for 48 hours, giving you plenty of time to make your purchase. This service is great if you're expecting a payday in the next few days and you are worried that tickets will be more expensive later, or if you're organising a vacation for a large number of people from whom you haven't received money yet.