Alpes–Isère Airport (formerly Grenoble-Isère Airport) or Aéroport Alpes–Isère (IATA: GNB, ICAO: LFLS), is an international airport serving Grenoble which is situated 2.5 km north-northwest of Saint-Étienne-de-Saint-Geoirs and 40 km west-northwest of Grenoble, both communes in the Isère, département of France. The airport handled 307,979 passengers in 2019 and mostly features winter seasonal leisure traffic.

Formerly known as Grenoble–Saint-Geoirs Airport since the 1968 Winter Olympics, its appellation of Isere, refers to the department of Isère. A campus of the École nationale de l'aviation civile is also located at the airport.