Yesterday United Airlines made a big announcement of new flying from San Francisco. Today American Airlines is out with their own announcement of new flying as well.
American is expected to grow at both Dallas Fort-Worth (in 2019 with new gates coming online) and Charlotte (in 2020 with new gates coming online) and at Washington National (by operating larger regional jets at the dreaded gate 35X is replaced with a new regional concourse). The airline says these are their most profitable hubs.