ICCT updates US airline fuel efficiency rankings; Alaska stays on top, American on bottom
Green Car Congress
OCTOBER 22, 2015
Key findings of the updated study include: Alaska, Spirit, Frontier, and Southwest Airlines remained the top four most fuel-efficient airlines on US domestic operations in 2014. On average, Alaska has operated the most efficient US domestic flights for five years running since 2010. America Airlines ranked last for the third year in a row, burning 25% more fuel than Alaska to provide a comparable level of transport service.