Ambérieu-en-Bugey Air Base (French: Détachement Air 278 Ambérieu-en-Bugey) (ICAO: LFXA) is a front-line French Air and Space Force (French: Armée de l'air et de l'espace or ALA) base located approximately 5 km north-northwest of Ambérieu-en-Bugey, in the Ain department of the Rhône-Alpes region in eastern France.