![Alaska Airlines 737 MAX 9](/sites/default/files/styles/crop_freeform/public/2024-04/mkt_2310_737_max_9_air2air_source_alaska_airlines.jpg?itok=p8Oeuq-K)
Alaska Airlines Boeing 737-9
Credit: Alaska Airlines
This week’s Carbon Analysis revisits the U.S. “Second Four,” this time considering annual figures. The airlines in question are Alaska Airlines, Frontier Airlines, JetBlue Airways and Spirit Airlines. Emissions are shown for 2019, 2021 and 2023 in kgCO2/Available Seat Kilometer (ASK). The results...
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Carbon Analysis: U.S. ‘Second Four’ Efficiency Improves Yearly is published in Aviation Daily, an Aviation Week Intelligence Network (AWIN) Market Briefing and is included with your AWIN membership.
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