3 years ago I was traveling from northern Poland to southern Poland by train - the only option unless you have a car. It so happened that my family was flying from Toronto to Warsaw at the exact same time. They arrived before I did and were much more comfortable than I was, too. Not to mention the safety aspect.
Of course if we're talking about cities that are 20-30 minutes away by car, then flying would not be reasonable.
Of course if we're talking about cities that are 20-30 minutes away by car, then flying would not be reasonable.