Getting there
Flights
Closest airports are either Toulouse or Lourdes-Tarbes. Toulouse is a busier airport so potentially more options. There are a range of flights from London (all airports), but also some from Bristol or Birmingham (albeit limited timings/days).
If flying from Manchester, unfortunately the journey on the other side will be slightly longer but the options include flying to Carcassonne, Bilbao, Bordeaux or Barcelona.
The nearest train station is Montrejeau Gourdan Polignan.
Transfer
It is 1hr20 minute drive from Toulouse, or 1hr from Lourdes. Car hire easy at either airport, or please say if you'd like to be put in touch with people on similar flights to share lifts.
https://farrusvoyages.com/ offer group transfers from the airport.