So far, best I can find for a weekend is:
UA:$412 SFO-SJU (San Juan, PR) 9286mi 4.4cpm
Sat 31 Jan
UA1457 SFO-IAH 0604-1147
UA1423 IAH-EWR 1431-1900
UA1241 EWR-SJU 2001-0059(+1d)
Sun 1 Feb
UA1531 SJU-EWR 0056-0511
UA1494 EWR-IAH 0855-1205
UA1749 IAH-SFO 1255-1524
Doesn't sound so good, but may make more sense with more status.
For example, if you're 1K, you get 100% RDM bonus...which means you're paying 2cpm for 18572RDM, and an additional 0.4cpm for 9286PQM (and 350 PQD). Significantly better than Accelerator rates.
From Mar 1 on, you will be getting mileage based on PQD. So for 1K, it's 11x $350 = 3850RDM, or less than a quarter of the current model. So if 2cpm for 3850RDM, then that means 3.6cpm for 9286PQM. So PQM costs nine times as much!
So even for an L-fare, it seems there is a huge difference flying before Mar 1.
I'm not having much luck finding lower fares for longer distances. Best I see to Europe is to ARN and OSL (coincidentally)...which a Norwegian should have no problem with.
Good luck!