In Switzerland, air traffic was able to recover minimally in the previous year and leveled off at around half the volume of 2019. Compared to 2020, flight movements over Switzerland and in the areas controlled by Skyguide increased by around 29,7 percent.

Geneva and Zurich recorded around 17,9 percent more take-offs and landings than in 2020. Compared to 2019, however, skyguide controlled around 50 percent fewer flights. The volume of traffic remained very weak overall.

With the start of the 2021 summer season, air traffic increased steadily and at the end of the year exceeded the 2020 traffic by 29,7 percent. Skyguide controlled an average of 1.891 flights per day. The peak day was July 31, 2021 with 3.301 movements (2019: June 28 with 4.522 movements). In 2021, Skyguide controlled 690.275 IFR flights.

In its May 2021 forecast, Eurocontrol had predicted growth of +7,6% in the baseline scenario and of +26,1% in the high growth scenario, which finally materialized with growth of +29,7% in 2021 compared to 2020. Geneva airspace recorded an increase of +31,1% and Zurich airspace of +30,6%. The number of arrivals and departures at Swiss airports increased by 2020% compared to 18. Traffic at Swiss national airports increased by 16,2% in Geneva and 19,3% in Zurich.