Travel

From Zaragoza or Huesca: There is a bus line (a bus every two to three hours) that serves the Zaragoza-Huesca-Jaca route. Tickets can be purchased online from Alosa or Movelia.
From Madrid: There are two main options.
Buses depart on an hourly basis directly from the airport (check schedules here).
High speed trains depart from the Atocha train station to Zaragoza or Huesca (tickets can be purchased online from Renfe), and then a bus can be taken to Jaca (see above). Special rates may be offered for tickets purchased well in advance. Also, check price differences between one-way and round-trip tickets. The train and bus stations in both Zaragoza and Huesca are located in the same facilities, so the transfer should be easy.
From Pamplona: There is a bus line (one or two buses every day) from Pamplona to Jaca. Tickets can be purchased from Alosa, or Movelia.
From Barcelona: The best way to travel is to take the train to Zaragoza or Huesca (tickets can be purchased online from Renfe), and then take a bus to Jaca (see above). Special rates may be offered for tickets purchased well in advance and as two one-way tickets rather than round trip. The train and bus stations in both Zaragoza and Huesca are located in the same facilities, so the transfer should be easy.
From Pamplona: There is a bus line (one or two buses every day) from Pamplona to Jaca. Tickets can be purchased from Alosa, or Movelia.

A simple map of the city can be found here. For a more detailed map click here.