Midwest Airlines sale ends May 11

Midwest Airlines, they of the freshly baked-onboard cookies and 100% two-by-two seating on some routes, is having a sale for travel through May 24. What's significant about this sale is that it requires just a two-day advance purchase. These aren't the cheapest fares on all routes, mostly to/from Kansas City, Milwaukee, and Omaha, but they are the least restrictive. Smaller towns such as Appleton, Green Bay, and Grand Rapids are also included. Sale ends May 11.