The world-famous "Balloon Week" has been held each year since 1979 in the last week of January. Up to 100 balloonists gather for the festival each year. The Breitling Orbiter 3, the first hot air balloon to circumnavigate the earth, took off from Château-d'Œx on 1 March 1999. Commemorative insignia (pins) are created for each festival and are sold as pass-tickets to the museum and sportive manifestations for the whole duration of it.
A museum dedicated to Montgolfier type balloons is located in the center of the town.
As of 2010, Château-d'Œx had an unemployment rate of 2.3%. As of 2008, there were 234 people employed in the primary economic sector and about 97 businesses involved in this sector. 252 people were employed in the secondary sector and there were 54 businesses in this sector. 1,012 people were employed in the tertiary sector, with 173 businesses in this sector. There were 1,372 residents of the municipality who were employed in some capacity, of which females made up 43.5% of the workforce.
In 2008 the total number of full-time equivalent jobs was 1,196. The number of jobs in the primary sector was 169, all of which were in agriculture. The number of jobs in the secondary sector was 232 of which 60 or (25.9%) were in manufacturing and 156 (67.2%) were in construction. The number of jobs in the tertiary sector was 795. In the tertiary sector; 191 or 24.0% were in wholesale or retail sales or the repair of motor vehicles, 50 or 6.3% were in the movement and storage of goods, 116 or 14.6% were in a hotel or restaurant, 15 or 1.9% were the insurance or financial industry, 46 or 5.8% were technical professionals or scientists, 42 or 5.3% were in education and 198 or 24.9% were in health care.
In 2000, there were 238 workers who commuted into the municipality and 266 workers who commuted away. The municipality is a net exporter of workers, with about 1.1 workers leaving the municipality for every one entering. Of the working population, 5.5% used public transportation to get to work, and 53.3% used a private car.
Skiing is a key activity in the area with the ski station of La Braye accessible via cable car (also open in Summer) from the heart of Château-d'Œx village. The International Hot-Air Balloon Festival in Château-d'Oex is held every year in January, since 1979.