"Commercial jetliners" refers to large airplanes that are specifically designed and used for commercial purposes, such as transporting passengers or cargo for airlines. Full definition
The world's largest commercial jetliner, the Boeing 747 makes its first takeoff on February 9th, 1969. (cnbc.com)
This year, he'll put his life on the line to test his design by piloting a hot air balloon by himself to about 50,000 feet, far above the altitude of commercial jetliners. (discovermagazine.com)
The company reports that «more than 10,000 Boeing - built commercial jetliners are in service worldwide, which is almost half the world fleet.» (wallstreetonparade.com)