My advice - don’t fly internationally on American through Dallas.
17 days ago outbound, American changed our gate 5 times, terminal once, between when we landed in Dallas and our departure 2 hours later.
Yesterday, May 9th we arrive in Dallas from Dublin at 8 pm for a 10:30 flight to SLC. American changed our gate 4 times, terminals once, and we left at 12:02 am today.
Never fly American and never fly internationally out of Dallas is my advice.