In April, we are flying into Madrid from London and I then want to go directly by AVE train from Atocha to Zaragoza. I have been to Spain many times so I am familiar with Madrid and getting from airport to Atocha and we speak Spanish. I see that there are Ave trains leaving for Zaragoza every hour on the half hour. My question is if I should buy an AVE ticket in advance for late afternoon or can I take my chances and just buy the tickets at the station. Given flight unforeseen delays I am reluctant to lock myself into a timed train departure. Do the AVE trains usually sell out? We are two people travelling Wednesday of Holy Week so I know that is a busier week.
We plan to spend a few days in Zaragoza, three days in Huesca and a one night stop in Sigüenza on our way back to Madrid. We have never been to this part of Spain and I know that ideally it is best to explore the area with a car but we are only using public transportation. A while back I saved Jaime el Sabio's suggestions for numerous stops in this area that all look so intriguing but are hard to get to without a car. Any lodging, restaurant or must see/ hidden gem recs for Huesca or Sigūenza?