Nobody wants to pay $800 for an airline ticket when they
Fly on multiple airlines. Looking for flights on single airlines may be the easiest, but you may have better results if you look into flying on multiple airlines. Try taking one airline to your destination, and a separate one from. Or, include a layover with another airline mid-flight. Breaking up your trip and splitting it between carriers is likely to save you money, which is worth the extra time and hassle it will cost you.
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.
look for good deals or even deal with a specific airline
Another thing to note when you're booking your flight tickets online is to consider extra fees and "hidden" charges such as credit/debit card fees, baggage, meals, certain seats, extra leg room et cetera. Factor all these in before you compare between different airlines and flights before making the final purchase. Most online travel portals require you to pay via credit card, and may charge you a hefty credit card fee. But some sites also accept PayPal (including American Airlines website aa.com, Agoda.com, hotels.com). If you buy tickets directly from most airlines, you also won't be charge a credit card fee, and you should take those charges into consideration when choosing between booking through an airline website or other travel websites. Some online travel agencies let you pay via wire transfer from your bank account.
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.