EuroAirport Basel
Mulhouse Freiburg

The airport lies entirely in France, in the communes of Saint-Louis, Hesingue and Blotzheim in Alsace. It is jointly administered by France and Switzerland under an international convention of 1949, and it is the only binational airport in the world. It also has a Swiss customs sector, which means passengers can clear directly into Switzerland without entering France on the ground.

Because the arrival country becomes a choice rather than a given. The same aircraft, at the same airport, can deliver passengers into either France or Switzerland depending on which sector is used for clearance. For a meeting in Basel or northern Switzerland that removes a border crossing from the ground journey. For a trip into Alsace or eastern France the French side is the direct route. Very few airports in Europe work this way.

BSL is the Swiss code, MLH the French one, and EAP the neutral code for the airport as a whole. They refer to the same airport. Which one appears on a booking or a flight plan depends on the system and on which side of the operation is being addressed, and it is a routine source of confusion when comparing quotes or schedules.

The main runway 15/33 is 12,795 feet by 197 feet in concrete, which is the same length as Geneva's. There is a second runway, 07/25, at 5,971 feet. Field elevation is 885 feet. Nothing in business aviation is constrained by the runway here.

Prior permission applies and ground handling is mandatory. Neither is difficult, but both need arranging as part of the booking rather than on the day. Fire cover is ICAO Category 7.

Jet A-1. The airport also has a substantial maintenance and overhaul presence for business jets and airliners, which is one of the reasons operators know the field well beyond its passenger traffic.

When the destination is Basel, northern Switzerland, Alsace or the southern Baden region around Freiburg. The airport sits 3.5 kilometres northwest of Basel, 20 kilometres southeast of Mulhouse and 46 kilometres south-southwest of Freiburg, and is 4.7 kilometres west of the point where France, Germany and Switzerland meet. For that trinational corner nothing else is close.

Basel, in most cases, if the destination is Basel itself or the pharmaceutical and chemical corridor around it. Zurich is roughly an hour away by road and adds slot coordination and a night curfew that Basel does not impose in the same form. Zurich wins where the destination is genuinely Zurich or where the connection onto a scheduled long-haul matters.

The airport sits close to residential areas on both sides of the border and noise is a live local issue, so night operating restrictions should be confirmed for the specific date rather than assumed. This is one of the items we check before committing a late arrival or an early departure.

Plans for a joint Swiss and French airport began in the 1930s and were halted by the Second World War. Swiss planners had identified Basel as one of four cities needing a main urban airport, and the existing field at Sternenfeld in Birsfelden was too small and hemmed in by the river port to expand. A site at Allschwil was proposed, which would have required building across the Franco-Swiss border, and that led to the talks with France that produced a single shared airport.

The first enlargement project was approved by referendum in Basel in 1960, and the terminals and runways were extended repeatedly over the following decades. The north-south runway reached its present 3,900 metres in 1972. The airport passed one million passengers a year in 1984, and the trademark name EuroAirport Basel Mulhouse Freiburg was introduced in 1987.

Central European Time, CET in winter and CEST in summer, which is UTC+1 and UTC+2. France and Switzerland share the same time, so the binational arrangement raises no timekeeping question.