Two Similar Flights

What is the difference between these two flights? flightaware.com/live/flight/DAL575A . They left within minutes of each other. Are they two sections of the same flight?

probably.

notable-activity/p-in-flight-number-t17724.html

what is going on here is that they are adding the P (could be any letter) to the flight number (and call sign) to avoid the confusion of having two flights in the air with the same flight number and call sign.

I’ll opt for the 575 section, Honduras sounds way more fun than New Jersey today.
Anyone getting mixed up would have a BIG surprise.
Suspect numbering is coincidental- that’s just me. :sunglasses: