Everything started with the Swiss National Redoubt Strategy in the Second World War. With the concentration of the armed forces in the Alps, the military airfields located in the Swiss Central Plateau region were not adequately defended, therefore they had to be replaced by airfields in the Redoubt zone. This is the reason why the construction of the Saanen airfield was ordered.
In October 1939, the preparations for this new military airfield were finalised and Saanen could be covered. However, the airfield consisted of just a large reed bed which had to be rolled level and gradually drained. But with the introduction of heavier aircraft, the rolled grass runway was no longer good enough. So at the beginning of 1942, construction of the hard-surfaced runway measuring 900 x 40 metres then started. At the same time, the taxiing areas were hardened and drained, access roads and bridges were built and any obstacles to safe takes-off and landings removed. The new runway was became operational at the end of 1942.
After the active war years, the Cold War then dominated and the military occupation of Saanen was increased even further. As property of the military, the airfield became a “no-go area” for private pilots, making them all the more anxious to fly here. In 1970, there was no entry for the Saanen airfield in the “Aero Almanac”,