SEATTLE, Sept. 19, 2013 /PRNewswire/ -- Boeing [NYSE:BA] welcomes Lufthansa's selection of the 777-9X for its future long-haul fleet. The launch of the 777X family is targeted for later this year and entry into service around the end of the decade. Advanced technology including a new composite wing, all-new engines and superior aerodynamics will result in the incredible fuel efficiency promised by the 777X family. The 777-9X, with around 400 seats, will be the largest and most efficient twin-engine commercial jet in the world with the lowest operating cost per seat of any commercial airplane and no competitor in its market segment. "We are focused on developing and delivering a superior airplane that ensures the 777 remains the unequivocal long-haul leader," said John Wojick, Senior Vice President of Global Sales, Boeing Commercial Airplanes. "With its new engines and an all-new composite wing design, the 777X will be the largest and most-efficient twin engine jet in the world with 20 percent lower fuel consumption and 15 percent lower operating costs than today's 777. Boeing is delighted that Lufthansa is continuing its longstanding partnership with Boeing by selecting the 777X for its future fleet development." "Boeing and Lufthansa share more than 50 years of partnership and innovation and a tradition of launching new airplane models – starting with the original 737s and most recently, the efficient 747-8 Intercontinental," said Nico Buchholz, Executive Vice President and Head of Fleet, Lufthansa. "Lufthansa is demonstrating its legacy of innovation and market leadership again with its selection of the 777X. We look forward to many years of partnership with Boeing, as we make air travel more efficient, comfortable and environmentally sustainable with airplanes such as the 777X." Earlier this year, the Lufthansa Group ordered six 777-300ERs for the fleet of Swiss International Airlines. Boeing will deliver the first of Lufthansa Cargo's five new 777 Freighters later this year.