Thanks for the informative and quick responses brp and others!

My original flt was on time when I left on the earlier one but I'll call and check to see if it ended up delayed.

This was a completely voluntary re-route. My original flt had seats; I just wanted to leave early and did not notice that this put me on a route with a single flt number. Live and learn for me.

I just re-calculated where I expect to be with this change and it puts me 81 miles short of 50k and I'm already doing a 6 segment MR 12/12-12/13. Ugh.

Oddly enough the DFW->SFO 1464 miles have posted but nothing is shown for the AUS->DFW segment from that day even though several flts since then are listed.