The “land of opportunity” is also a land of great diversity made up of many cultures and incredible scenery. International travelers booking flights to the United States are welcomed throughout the 50 states and domestic travelers find plenty of opportunity to hop US flights and take in the vast regions that grace the country. Scattered U.S. territories, including Puerto Rico, Guam, American Samoa, the Midway Islands and U.S. Virgin Islands, are popular destinations for US travelers seeking cheap USA flights to seemingly far-away destinations.
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.