I fly across the country every few months (live in Arizona, family in Pennsylvania) and I usually pay around $450, round trip. I could pay less, but I stick wi

I fly across the country every few months (live in Arizona, family in Pennsylvania) and I usually pay around $450, round trip. I could pay less, but I stick with US Airways so I can rack up miles. When I made less money I'd fly whatever airline was cheapest - just under $400 was common. I've done it all: bus, train, and drove myself. Flying is the best deal, hands down. There's no comparison - round-trip cross-country for $500 is a modern miracle.