The idea of a road trip can be enticing—until you’ve spent 12 hours (including four bathroom breaks and three fast-food binges) winding through remote mountain passes only to have a day or two at your destination. Although several popular Western towns have airports, conventional wisdom tells us that tickets are too pricey to even consider. To test that theory, we scoured online travel sites in search of deals that might make it worth your while to leave the gas-guzzler at home. Here’s what we found.