EuroAirport Basel–Mulhouse–Freiburg

EuroAirport Basel–Mulhouse–Freiburg is one of the most unusual airports in the world: a single physical facility jointly operated by France and Switzerland under a 1946 binational treaty, sited entirely on French soil but serving three countries through a partitioned terminal with separate French, Swiss, and (by road) German customs areas. Located in Saint-Louis, France — 2 mi (3 km) north of Basel and 12 mi (20 km) south of Mulhouse — BSL handles 128 routes to 107 destinations operated by 35 airlines. The destination count is exceptional for a non-hub airport and reflects EuroAirport's role as the principal aviation gateway for the TriRegio economic zone spanning northwest Switzerland, the French Alsace, and Germany's southern Baden-Württemberg. The airport uses three different IATA codes: BSL (Basel), MLH (Mulhouse), and EAP (EuroAirport itself). EasyJet Switzerland operates its only Swiss base at BSL and is by far the largest carrier. Ryanair, Wizz Air, Wizz Air Malta, Pegasus, Helvetic Airways, Vueling, Transavia, TUI fly Belgium, TUI fly Deutschland, Eurowings, Nouvelair, Tunisair, Air Serbia, Pobeda (historically), and a rotation of Turkish, Eastern European, and North African leisure operators populate the remainder. The route map is dominated by European business and leisure destinations, with notable depth of service to the UK, Spain, Portugal, Italy, Greece, Turkey, North Africa, and Eastern Europe. Long-haul service is limited; most intercontinental passengers connect via Zürich or Frankfurt. The airfield sits at 885 ft (270 m) elevation with two concrete runways: the primary 15/33 at 12,795 ft (3,900 m) — one of the longer civil runways in Europe, built to accommodate emergency diversions from Zürich and Geneva — and a short 07/25 crosswind runway at 5,626 ft (1,715 m). The terminal is divided by an internal customs wall into French and Swiss sectors; passengers, baggage, and cargo must use the appropriate sector for their destination country, and this unique arrangement influences rental-car bookings, taxi ranks, and even airside retail. The airport is the largest aviation facility in the Jura region.