Q. I have a fare watch on several sites for fare sales between Minneapolis and Detroit. Delta never seems to put these two hubs on sale except sometimes going through Chicago and hardly ever nonstop. There are sales for all other cities in the Midwest from Minneapolis except Detroit. Is it because they have a non-stop monopoly on this route any other particular reason for this?

A. Yep, you're absolutely right. Same thing with other monopoly nonstop routes, such as Newark/Boston and Cincinnati/Detroit...especially if you don't stay over a Saturday night or just fly one-way. It's the shape of things to come thanks to airline consolidation. Eventually, however, another airline will see an opportunity (perhaps Southwest?) and jump in, assuming that gates and take off slots become available.