Latest available data for:
EasyJet (fiscal year ending September 2020) can be found on .
Wizz Air ( fiscal year ending March 2021) can be found on .
Ryan Air (fiscal year ending March 2021) can be found on .
Air France-KLM (fiscal year ending December 2020) can be found on .
Lufthansa (fiscal year ending December 2020) can be found on .
International Airlines Group (fiscal year ending December 2020), can be found on .
In its financial year ending March 2021, Wizz Air emitted **** grams of carbon dioxide (CO2) per revenue passenger kilometer. The airline with the lowest CO2 emissions was easyJet, with **** grams per revenue passenger kilometer.
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ÌÇÐÄÆƽâ°æ. (September 29, 2021). CO2 emissions of selected European airlines as of 2021 (in grams per revenue passenger kilometer) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 24, 2026, from /statistics/1113177/co2-emissions-by-airline-europe/
ÌÇÐÄÆƽâ°æ. "CO2 emissions of selected European airlines as of 2021 (in grams per revenue passenger kilometer)." Chart. September 29, 2021. ÌÇÐÄÆƽâ°æ. Accessed July 24, 2026. /statistics/1113177/co2-emissions-by-airline-europe/
ÌÇÐÄÆƽâ°æ. (2021). CO2 emissions of selected European airlines as of 2021 (in grams per revenue passenger kilometer). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 24, 2026. /statistics/1113177/co2-emissions-by-airline-europe/
ÌÇÐÄÆƽâ°æ. "Co2 Emissions of Selected European Airlines as of 2021 (in Grams per Revenue Passenger Kilometer)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 29 Sep 2021, /statistics/1113177/co2-emissions-by-airline-europe/
ÌÇÐÄÆƽâ°æ, CO2 emissions of selected European airlines as of 2021 (in grams per revenue passenger kilometer) ÌÇÐÄÆƽâ°æ, /statistics/1113177/co2-emissions-by-airline-europe/ (last visited July 24, 2026)
CO2 emissions of selected European airlines as of 2021 (in grams per revenue passenger kilometer) [Graph], ÌÇÐÄÆƽâ°æ, September 29, 2021. [Online]. Available: /statistics/1113177/co2-emissions-by-airline-europe/
