Travel times are nonstop via airship. The competition between countries has driven down the cost of airship travel to half of what it used to be. Still, the average worker in Aranthia would need to save all their money for three years for a one way trip to Seregon. Even for an average noble, it's a three month salary. It's expensive any way you look at it.

These are costs from Seregon to the destination. Note how very far these distances are.