There are a good choice of airports with Barcelona offering many direct transcontinental as well as European services.
Within France, the closest airport offering flights with the widest range of International airlines is Toulouse, some 88 km away, with listed current airlines, (among others) including Air France, Lufthansa, KLM and British Airways.
Ryanair offers direct flights from Paris and Brussels to Perpignan on the Mediterranean coast 75 km away and also fly into Carcassonne the closest airport to Chalabre, 35 km away, with flight connections from London, Liverpool, Dublin and Brussels.
Car hire is available at all airports and the access to Chalabre is well served by the French autoroute. Try France Car Hire for competitive rental car rates.
Barcelona is a 3.5 hour drive, with coastal or mountain routes offering similar journey times.
Toulouse is a 75 minute drive.
The Mediterranean towns of Perpignan & Narbonne are just over an hour away and Carcassonne is within 30 minutes.