777The Boeing 777 is a family of wide-body twin-engine commercial jet aircraft with variants for both passenger and cargo transportation. The 777 was first flown on June 12, 1994, and commercial service commenced on June 7, 1995. It isGrace the skies on the 777-300ER. The aircraft is desned for a comfortable and reliable journey, no matter how far your travels take you. SEAT MAPS. Explore our cabin in 3D. 777-300ER.