More information on this way of entry will be available later on. Shorter journeys are subsidized by the government, so a flight to Gilgit or Skardu is not that much more expansive than taking the bus. Pakistan International Airways has many routes within Pakistan. More information is to follow. Many of the railways are feats of engineering, rising through hilly, difficult terrain and crossing mighty rivers and long bridges.
Steam engines are very common.
The trains can get very crowded, so it is best to make reservations several days in advance. Passengers on First class provide their own bedding. A sleeper has to be booked separately from the First Class ticket. Pakistan Railways offers concessionary fares to various types of travelers, including students, groups on study tours, tourists, sports groups, youth organizations, etc. The provincial governments have Road Transport Corporations, which run the regular services between the major cities.