This section is dedicated to the large fleet of Airbus A321s, the workhorse of American Airlines' short-haul network.
There are currently four cabin layouts covering six A321ceo sub-types:
A321L: Legacy US AIrlines two class configuration with the conversion underway to the A321K type (expected to be completed by 2021 year end)
A321S: Legacy AA two class configuration with both types sharing the same cabin layout. Conversion is underway to the A321R type.
A321K and A321R: New "Project Oasis: harmonised configuration. Note, both types share the same cabin layout
A321T: Trans-continental three class configuration
There are also two cabin layouts for the A321neo sub-type. The original arrangement follows the "Project Oasis" cabin specification and is now undergoing "Project Kodiak" modifications which will see a reduction of the Main Cabin Extra seat count from 47 to 35.