Booking your journey from George Bush Intercontinental Airport (IAH) to U Michaeli Airport at the last minute could save you a pretty penny if you get lucky and find an epic deal. However, fares usually don't drop in price as the departure date nears. If you choose to wait, flights could also be booked out or the best seats gone (hello, middle seat!). If you want to be on the safe side, book well ahead of when you want to leave. In fact, you can find some of the biggest deals up to a year in advance. If your favorite carrier hasn't released its airfares yet, check back regularly as offers are constantly updated on Expedia.