How you get to St Jean Pied de Port depends on which direction you are coming from, it is an awkward start to the Camino Frances. Most people are either coming from Pamplona or from Biarritz.
From Pamplona you get a bus from the bus station. During busy times of the year they arrange more buses, however if you are in Pamplona during the day go and buy your ticket well before time to make sure you have a place. The current 2009 price is €5.60 and it takes just over one hour. The buses leave Mon – Fri at 6pm, Sat at 4pm, and currently there are no buses on Sundays.
The website for the bus company can be found here http://www.autobusesdenavarra.com/siv/internet/busquedas.jsp
This gets you to Roncesvalles. From there the only way is a taxi to St Jean. I have never travelled this way to St Jean – others have told me it is fairly easy to get a taxi to St Jean. The cost of a taxi is dependant on how many are sharing; expect to pay €20 per person if there are four. Do you know any exact details for this? If you do could you please drop me a mail – lesliegilmour@gmail.com – thanks.
Getting to St Jean Pied de Port from the other side of the Pyrenees is much easier. Whether you are getting a train from Paris or flying into Biarritz it is all very simple.
If you are flying into Biarritz get the airport bus to Bayonne train station, where you then get a train to St Jean.
If you are travelling by train from Paris get off at Bayonne and do the same. This is the link for the timetable and up to date fares. http://www.voyages-sncf.com/