Update
Thanks for the tips.
Unfortunately those LCC's don't seem to have regular enough service to make them useful to my schedule.
So what I think I'm stuck with is buying a ticket to presumably FRA, then using miles to CAI. I've found a trip for ~$600, for 10k+ EQM, obviously far from MR material, but this isn't a MR.
Now I guess I'm seeking advice from the experts on a routing that I can somehow get more EQM. I've tried routing via west coast hubs, but that adds a lot to the price. Also a little euro-hopping, but that doesn't do much for additional miles. Of course, I prefer UA metal if possible, as this will be in coach, so E+ is critical.
I'm planning on using miles for UA 9106 on 12/9 FRA-CAI, and likely return on UA 9025 on 12/12 CAI-FRA.
Thanks again