Taking the night train is a common way to travel within Finland. By train, it takes around 10 hours and 1000-1100km north to Lapland (taking Helsinki-Levi as example). It's possible to take a local flight at vastly higher prices and no room for the equipment people tend to take along for such trips, such as skis and hiking gear.

In central Europe, commuting by train is also pretty common. You might get packed pretty tightly at the most busy commuting times, but you avoid the huge traffic jams in and out of major cities which can waste hours of your day.