I've only been to Atlanta twice, both for 1-2 days. However, connected well over 100 times, probably closer to 200, making it a 1% O&D rate for me. ...and that is me trying to avoid connections and avoid Delta because of SkyPesos worth so little. In contrast, my O&D rate for LAX is probably about 95%. For a small station, like OMA, my O&D rate is 100%.
I assume the 95%-100% rate for LAX and OMA is either because that's home or where a client/work is?