Looks like a pretty good deal to me!
AA has taken flight 1230 from SEA to DFW off of the schedule for many dates in the fall, so a MR I had booked got completely changed. Looks like I'll stick with that change and do one of these in the middle.
For $412 I found the following routing on a bunch of dates in September: SEA-SFO-ORD-MIA-SAP-MIA-BOS-DFW-SEA, which is 9933 miles.
I love the map:
