My trip isn't for 5 months yet and I don't know when to buy airline tickets. The prices now are double what I paid last year for the same trip, so when do airlines drop their rates to sell empty seats? I want to be sure of a seat but I want the best price too. If I buy now to get assured of a seat, can I get a refund later when rates decrease and how do I do that? Just ask at the ticket counter or what? I get my tickets online.