In 71 days, American Airlines will retire its remaining MD-80 aircraft. 

At one point, the MD-80s, also known as the Super 80 and nicknamed the "Mad Dog," made up more than half of AA's fleet. American Airlines called the aircraft the "workhorse of the airline's fleet throughout the 1980s and beyond."

But decades since they first took flight, the planes tend to burn more fuel and require more maintenance than the Airbus aircraft and Boeing 737s that have replaced them. 

Monday, American Airlines released the schedule for their last passenger flights, which will take place on Sept. 3 and Sept. 4. 

The very last of those flights, Flight 80, will depart at 9 a.m. on Sept. 4 from the Dallas/Fort Worth International Airport and land at 11:35 a.m. at Chicago O'Hare International Airport.

After that, American will send its 26 remaining MD-80s to a boneyard in Roswell, New Mexico.

More WFAA coverage: