Airlines that fly in and out of Toulouse airport Flybe BA Gatwick, Hertz,
This came from Wikipedia in 2012, routes get changed frequently. Posted so you can get an idea of other airlines you can use in the face of a strike by one of them.

Aer Lingus - Seasonal: Dublin
Aigle Azur - Algiers, Oran
Air Algérie - Algiers, Oran Seasonal: Constantine
Air Corsica - Seasonal: Ajaccio, Bastia C
Air Austral - Saint-Denis de la Réunion [ends 19 january] D
Air France - Athens [ends 28 October 2012], Berlin-Tegel [ends 28 October 2012], Casablanca, Hamburg, Istanbul-Atatürk, Lyon, Malaga [ends 28 October 2012], Malta, Marrakech, Milan-Malpensa [ends 26 october], Naples, Paris-Charles de Gaulle, Paris-Orly, Prague, Rome-Fiumicino, Seville, Strasbourg, Tunis, Venice-Marco Polo, Vienna [ends 28 October 2012] C
Air France operated by Airlinair Marseille, Nice C
Air France operated by Brit Air Nantes, Rennes C
Air France operated by Régional Lille
Seasonal: Calvi, Figari C
Air Transat - Seasonal: Montréal-Trudeau D
Alitalia - Rome-Fiumicino B
British Airways - London-Heathrow C
Brussels Airlines - Brussels B
Eastern Airways - Dijon B
EasyJet - Basel/Mulhouse, Bristol, Brussels, Lille, Lisbon, London-Gatwick, Lyon, Madrid, Milan-Malpensa, Nantes, Nice, Paris-Charles de Gaulle, Paris-Orly, Porto, Rome-Fiumicino, Venice-Marco Polo C
EasyJet Switzerland Geneva C
Iberia operated by Air Nostrum Madrid, Seville B - Seasonal: Edinburgh, Leeds/Bradford, Manchester, Newcastle-upon-Tyne D
Jet4you - Agadir, Casablanca, Marrakech D
KLM - operated by KLM Cityhopper Amsterdam C
Lufthansa - Frankfurt B
Lufthansa Regional operated by Lufthansa CityLine Frankfurt, Munich B
Ostfriesische Lufttransport Bremen B
Royal Air Maroc - Casablanca, Marrakech
TAP Portugal operated by Portugália Lisbon B
Tunisair - Tunis D
Turkish Airlines - Istanbul-Atatürk C
Twin Jet  - Basel/Mulhouse, Metz-Nancy B
Vueling - Barcelona
Seasonal: Ibiza, Malaga, Palma de Mallorca B
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