The 737-900ER has three cabin configurations, each with similar layouts but varying numbers of extra legroom seats. The Boeing 737-900 and the extended ... the first 737-800 entered service ...
The 737-800 is part of Boeing's "next generation" or "NG" line of planes, which also includes the smaller 737-600 and 737-700 and the larger 737-900 ... Avelo Airlines, Delta Air Lines, Sun ...