EuroAirport Basel–Mulhouse–Freiburg
airport in France near the Swiss and German borders
Basel–Mulhouse International Airport (French: Aéroport de Bâle-Mulhouse), commercially known as EuroAirport Basel–Mulhouse–Freiburg (IATA: BSL, MLH, EAP, ICAO: LFSB) or simply EuroAirport, is a Franco-Swiss international airport located in France, in the administrative commune of Saint-Louis, Hésingue, and Blotzheim, 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. It is the only binational airport in the world. The airport serves as a base for easyJet Switzerland and mainly features flights to European metropolitan and leisure destinations.
History
Foundation and early years
Plans for the construction of a joint Swiss–French airport started in the 1930s but were halted by the Second World War. Swiss planners identified Basel as one of the four cities for which a main urban airport would be developed and recognized that the existing airfield at Sternenfeld in Birsfelden was too small and, due to the development of the adjacent river port facilities, unsuitable for expansion. The suburb of Allschwil was proposed for a new airport, and this would require being constructed across the Franco-Swiss border, leading to talks with French authorities centered on developing a single airport that would serve both countries, enhancing its international airport status.
The first enlargement project was approved by referendum in Basel in 1960 and, over the following decades, the terminals and runways were continually extended. The north–south runway was extended further to 3,900 m (12,800 ft) in 1972.
The public source identifies “EuroAirport Basel–Mulhouse–Freiburg” as airport in France near the Swiss and German borders. This brief keeps that definition visible, then builds a research path around EuroAirport, Basel and Mulhouse.
Why this record matters
A short description can identify a subject without explaining its stakes. For “EuroAirport Basel–Mulhouse–Freiburg”, the useful work is to connect “airport in France near the Swiss and German borders” to the records capable of establishing context and consequence.
The strongest evidence will usually combine a dated visual record with documents produced by the authority responsible for the place. The source revision retrieved here is dated Sep 25, 2026. The linked authority identifier is Q156971. VIAF identifies the subject as 140643874. The Library of Congress control number is n84235116. Authority coordinates are 47.600, 7.532. 4 of 7 selected statements include explicit references; 2 carry qualifiers and 1 use preferred rank. The first chronological checks are 1949, 1960 and 1972.
Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “EuroAirport Basel–Mulhouse–Freiburg”, its source revision and the description used here.
- Expand the search: follow EuroAirport Basel–Mulhouse–Freiburg primary sources, EuroAirport Basel–Mulhouse–Freiburg archive and EuroAirport research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “EuroAirport Basel–Mulhouse–Freiburg”?
- Which authority defined the place, boundary or structure at the relevant date?
- Which earlier names or jurisdictions may reveal additional records?
Search terms from this dossier
This entry incorporates text from “EuroAirport Basel–Mulhouse–Freiburg” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.