|Focus cities||Isle-aux-Grues Airport|
|Headquarters||640, boul. Taché Est, Montmagny, Quebec|
Air Montmagny was founded in 1954 by Gilles Couillard.
Air Montmagny serves five of the islands of the Isle-aux-Grues archipelago.
Since the nearby l'Isle-aux-Grues island has no ferry service during winter, Air Montmagny serves as the main link to the land. They carry passengers, goods, and also serves as "school bus" for students attending school in Montmagny.
Grosse-île island, also known as l'île de la Quarantaine is a regular user of Air Montmagny for employees and VIPs.
As of June 2017, Air Montmagny fleet includes: