Flying throughout the U.S. brings travelers closer to national monuments like the Golden Gate Bridge of San Francisco, the Gateway Arch in St. Louis, and the Sears Tower in Chicago. Add to this the mind-blowing landscapes, found in the magnificent National Parks like Yosemite, Yellowstone and Death Valley, as well as spectacular sights like the Grand Canyon and the Rocky Mountains, and visitors will begin to discover something of what makes U.S.A. flights so unique.
You're not crazy for thinking that a flight price has changed after searching it a few times in your web browser. Based on the cookies in your browser, flight prices do increase when a particular route is repeatedly searched, as the site wants to scare you into booking the flight quickly before prices get even higher. Always search for flights in incognito or private browsing mode to see the lowest prices.