EuroAirport Basel Mulhouse Freiburg is an international airport in the administrative commune of Saint-Louis, in the French Alsace part of the Trinational Eurodistrict of Basel. It is 4.7 km (2.9 mi) west of the tripoint of France, Germany, and Switzerland, 3.5 km (2.2 mi) northwest of the city of Basel in Switzerland, 20 km (12 mi) southeast of Mulhouse in France, and 46 km (29 mi) south-southwest of Freiburg im Breisgau in Germany. The airport is jointly administered by France and Switzerland, governed by a 1949 international convention. The airport serves as a base for easyJet Switzerland and mainly features flights to European metropolitan and leisure destinations.

An IATA airport code, also known as an IATA location identifier, IATA station code, or simply a location identifier, is a three-letter geocode designating many airports and metropolitan areas around the world, defined by the International Air Transport Association (IATA). The characters prominently displayed on baggage tags attached at airport check-in desks are an example of a way these codes are used.