Maybe you are trying to find flights to BIA or flights from Occitania or even flights Occitania BIA. From BIA you can also fly to Paris (Beauvais), Lyon, and Strasbourg.
"One-way tickets, taxes included, limited places subject to availability and payment with Visa Debit. Prices shown on this page correspond with the cheapest available fare for the selected date. The seats for this fare are limited. Click on “Book flight” and you’ll get the price for the selected flights, which will be shown in the “Summary” section on the following page."