Here You can find a list of airlines which operated in Biarritz airport.
Brussels-Charleroi - Ryanair
Lyon - AirFrance
Paris Charles de Gaulle - AirFrance
Paris Orly - Transavia France
Strasbourg - Volotea
London Gatwick - easyJet
London Stansted - Ryanair
Dublin - Ryanair
Luxembourg - Luxair
Köln Bonn - Ryanair