For those of you who actually plan ahead there’s Hopper. This app is more suitable for people who have flexible travel dates. Maybe you’re just thinking about going somewhere, but haven’t made up your mind for sure.This app analyzes millions of flights every day and seeks out those times when the prices drop. You can put in the city you’re planning on going and the app will analyze flights for it every day, making predictions. You can even set up push notifications, so it will let you know when is the best time to buy a ticket. You can save a lot of money with this app.