Swiss International Air Lines has its operational headquarters at EuroAirport Basel Mulhouse Freiburg near Basel, Switzerland.
The French-Swiss airport is located on French territory and has customs-free access to Switzerland.
The Swiss head office is located in the Swiss section of the airport, and it is only accessible from Switzerland.
According to the commercial register, the legal seat is in Basel itself.

Swiss International Air Lines' head office was previously the head office of Crossair.
In 2002 the "Crossair" sign on the building was replaced by a "Swiss International Air Lines" one.
As of 2004 the Basel area offices housed about 1,000 employees, while the Zurich area offices housed about 850 employees.
When Swiss started as a company, about 1,400-1,500 worked at the Basel offices.

SWISS also operates offices at Zurich Airport in Kloten and at Geneva Airport.
Swiss International Air Lines has its operational headquarters at EuroAirport Basel Mulhouse Freiburg near Basel, Switzerland. The French-Swiss airport is located on French territory and has customs-free access to Switzerland. The Swiss head office is located in the Swiss section of the airport, and it is only accessible from Switzerland. According to the commercial register, the legal seat is in Basel itself.
Swiss International Air Lines' head office was previously the head office of Crossair. In 2002 the "Crossair" sign on the building was replaced by a "Swiss International Air Lines" one. As of 2004 the Basel area offices housed about 1,000 employees, while the Zurich area offices housed about 850 employees. When Swiss started as a company, about 1,400-1,500 worked at the Basel offices.
SWISS also operates offices at Zurich Airport in Kloten and at Geneva Airport.
Swiss International Air Lines