Question: are there any dc9 still flying?
Answer: You'll still be able to fly on other DC-9 variants (MD-80, MD-90, Boeing 717) for some time to come, but the classics are not long for pax service. Still, they've had an amazingly long run – the final DC-9-50 rolled off the line in 1982, and Delta's small remaining active fleet was built between 1975 and 1980.