Airlines
Study Ranks Trans-Pacific Airline Fuel Efficiency
Hainan Airlines and ANA were found to be the most fuel efficient in terms of transporting passengers.

Hainan Airlines and All Nippon Airways (ANA) ranked first in overall fuel efficiency, both with an average fuel efficiency of 36 passenger-kilometers per liter of fuel (pax-km/L), according to a recently released study by the International Council on Clean Transportation (ICCT) on the 2016 fuel efficiency statistics for transpacific airlines. Qantas Airways ranked as the least fuel-efficient of the 20 airlines operating nonstop flights between the mainland U.S. and East Asia/Oceania, burning an average of 64 percent more fuel per passenger-kilometer than Hainan and ANA. According to the report, freight share was the most important driver of fuel efficiency overall, explaining almost half of the variation in airline fuel efficiency across carriers, followed by seating density.