train
I was told on various forums that the train from Madrid to Pamploma was considerably faster than the bus-which made quite a few stops along the way, so I went the train route. As I recall, I took a very early one in the morning, still arrived in Pamploma in the early morning and the taxi from right outside the train entrance in pamploma to SJPdP and i still arrived there before noon as I vaguely recall. I know I had to wait outside the pilgrim's office while they closed for lunch siesta so I commenced to take one too, with my back propped up against the wall beside the entrance, waiting for them to return, trying to catch up on a little sleep i was unable to get on the trans-atlantic flight over..
I started my Camino that very afternoon. I was quite tired but started anyway. If I did it over again I would have spent the night there and rested up before striking out early, refreshed, the next morning.