Just noticed that TUL-DFW/DFW-TUL is downgrading 50% of its daily flights from mainline AA to American Eagle/Mesa Airlines-- shifting altered mainline flights to a mix of CRJ-900's and CRJ-700's. The change is effective March 29th. Also looked at CLT-ORF/ORF-CLT on March 30th, and mainline US on the route is entirely gone, replaced by regional jets. Not a coincidence this change is happening less than a month after the unlimited domestic upgrades for elites on flights 500 miles or less. Look at flight schedules to see if a downgrade is coming soon to an airport near you! Welcome to the "new" American.