Be careful with Delta, they change schedules often. Keep an eye on your reservation, I almost always had time changes if I booked more than a couple months out with connections. I actually intentionally used that to my advantage. One time I was booking frequent flyer tickets for myself and a friend. The flights they had for the lowest points was late morning departure, PIT-JFK-MCO. Really didn't want to connect at JFK, seems like a waste to fly east to go south. I gambled that there would be a schedule change and took it. Sure enough, there was a time change, our flight arrived at JFK at the same time as the MCO flight left. I called and got the early morning flight through Atlanta that I really wanted for no extra points.