Figures and Tables
Summer 2021 traffic was about two thirds of pre-pandemic summer traffic
Following the recovery from the COVID-19 pandemic, numbers of flights are predicted to grow slowly out to 2050
Trend of increasing scheduled connectivity impacted by COVID-19 pandemic
The average aircraft age per flight has increased to 11.6 years
The number of night time arrivals and departures increased until 2019
Summary of air traffic indicators (% change to 2005)
All passenger-related indicators are for commercial flight departures only (other indicators include arrivals) and their 2021 values are preliminary estimates. Passenger kilometres are based on the shortest (great circle) distance between origin and destination. Cargo is for both all-cargo and passenger aircraft.
Noise exposure was reduced by two-thirds between 2019 and 2020 and may stay below 2005 levels after recovery from the COVID-19 outbreak
Summary of noise indicators (% change to 2005)
Full-flight CO2 emissions may grow beyond 2019 levels under the base and high traffic forecast
Net CO2 emissions could be halved by 2050 using sustainable aviation fuels
CO2 emissions of traditional scheduled airlines saw significant growth between 2016 and 2019
NOx emissions reached about 700 thousand tonnes in 2019
Single-aisle jets have the larger share of flights and noise, but twin-aisle jets have the larger share of fuel burn and emissions in 2019
Share of flights and CO2 emissions by destination region in 2019
Summary of full-flight emission indicators (% change to 2005)
Blue and red lines represent the range of aircraft/engine technology and ATM improvements in 2050. The net CO2 indicator also includes emission reductions from the EU ETS up to 2021, sustainable aviation fuels (SAF) and electric/hydrogen aircraft out to 2050. No assumptions on potential improvements to HC, CO and PM have been made out to 2050 from technology, ATM and SAF.
Average fuel consumption is for commercial passenger aircraft only and does not take into account belly freight. Kilometres used in this indicator represent the shortest (or great circle) distance between origin and destination, while fuel consumption is based on the actual flown distance (i.e. this indicator includes the effect of ATM horizontal inefficiency).