U.S. Domestic Airline Fuel Efficiency Ranking 2010
A new study by the International Council on Clean Transportation (ICCT), finds that Alaska Airlines is the most fuel efficient domestic airliner, while Allegiant Air is the least fuel-efficient, among 15 domestic air carriers operating in the U.S. in 2010. In other words, of the 15 airlines analyzed, Allegiant Airlines generates the most greenhouse gas emissions to provide a comparable level of service.
The International Council on Clean Transportation, a nonprofit research organization, used publicly available data to compare the efficiency of the airlines independent of size, network structure, or type of service.
The figure highlights the large gap between the most and least efficient airlines serving the U.S. domestic market. The analysis found that Allegiant would have used 26 percent more fuel than Alaska Airlines to provide a comparable level of transport service.