• Total fuel consumption: 1.15 million metric tonnes (2009)
• Fuel consumption per 100 passenger-kilometres: 3.88 litres (2009)
  
  

• Total CO2 emissions: 3.83 million metric tonnes (2009)
  
• CO2 emissions per 100 passenger-kilometre (2009): 9.78 kg

• Aviation's share of global CO2 emissions: 2 percent¹

• Average age of the SWISS fleet (as of 31 Dec. 2009): 10.8 years

Ever quieter
• Aircraft noise emissions: All SWISS aircraft produce at least 10 percent less noise than the ICAO's latest limit (Chapter 4)
• Noise emissions at Zurich Airport: Around two-thirds of the area heavily affected by noise around Zurich Airport has been eliminated in the past 20 years – despite an increase of roughly 50 percent in the number of aircraft movements
• SWISS has ordered regional aircraft (to be put into service starting in 2014) that are 15-20 dB quieter than today's Avro RJ100
  

¹ Source: IPCC/WIR 2007