Travelingpen:
Imo, yes.
Flying from Bangkok to Paris or Madrid in June 2014 is approximately the same price. Returning from Santiago to Madrid is much cheaper and quicker than Santiago to Paris. Unless you have a compelling reason to fly into Paris, I would recommend you fly round-trip to Madrid.
I assume you are planning on starting in SJPdP. If so, from Paris CDG arrange transport to Montparnesse train station. Take TGV train to Bayonne, then local train to SJPdP. If you choose Madrid, train or bus from airport to Pamplona, then bus or cab to SJPdP.
Thanks Joe...
Not sure why I though of Paris rather than Madrid... perhaps because everyone else seems to do that. But I started thinking about getting back again, hence the question.
Ultreya,
Joe