this is one of those ambiguous areas of geology. Both rocks are the same in composition, essentially being micro-crystalline quartz(ite). The difference as I understand it is basically the color, and how it is found. Flint being found in nodules separate from the host limestone, chert being embedded in it.
I'm not a geologist, but from looking around, it's easy to see that geologists themselves haggle over the difference and sameness.
Interestingly, I always referred to cave chert as "chert" since it is dark, and the red/gold/white stuff as flint... they all say it is the other way around.
Whatever. I have points I have found in south Georgia that are red and white and was always called "flint". I have points from N Georgia, Al and Tennessee that are dark that they call "flint" too, although it looks and feels just like the chert we see in caves.
It's the same stuff though, and will make sparks and tools if you know what you're doing.