The Biarritz – Anglet – Bayonne Airport (BIQ) can be reached through many cities in Europe (Brussels, Rotterdam, Paris, London, Stockholm, Geneva, Dublin, Manchester and many other french cities).
For your information, there are some EasyJet flights between Paris (CDG) and Biarritz (BIQ).
From the airport, you can get to the town center of Bayonne using Chronoplus line C (1€ one way): bus stop plan, bus timetable from Biarritz airport to Bayonne (one bus every 30 minutes) & global bus map. The journey time between the airport and Bayonne is about 20 minutes. For more information, please consult the Chronoplus urban transport network website.
Bayonne can be reached by train (SNCF). The railway station is located in the town center, close to the AIAI 2015 conference (5 minutes by feet).
Bayonne can be reached by car through the A63 and A64 highways. You can consult a road map and the current trafic on this website.