Founded in 1949 by former Gordonstoun teacher John C. Corlette, it occupies a scenic location in the alpine village of Chesieres, close to the ski resort of Villars-sur-Ollon, 58 kilometers from Lausanne.

The school prepares its students for IGCSE exams and the IB Diploma, and is also known for its extensive program of outdoor education and prowess in winter sports.

[5] Corlette's decision to open a school in Switzerland was likely inspired by his own experience: he left Stowe at 16 to finish his education at Alpine College, having been sent there for the benefit of his health.

[5] Following a financially precarious beginning, during which it rented various chalets, the school acquired its first permanent building with the purchase of the Hotel Beau-Site in 1955.

Though founded as a boys' school, Aiglon occasionally admitted girls under exceptional circumstances; a female student, Marsi Paribatra, was enrolled in 1949.

[13] Yet, a 1995 Newsweek profile noted that high fees did not "buy luxury" at Aiglon, and student dormitories were surprisingly modest.