LHR-PDX BA/AA J £1487 (via SEA, SFO, LAX, more)
Think this was about before, but died.
Wide open from May oneward, good prices. Rare direct out of London. Some good nearby connection options at SEA, SFO. Some not-so-good from ORD, PHX, DFW, etc.
Dig about long enough and there are A380/787 options there, otherwise it's 777/747. Routing can even be LHR-LAS-LAX-PDX to maximise on the TPs.
Some routes - SFO, SEA, even SJC - offering First upgrades for £200 each way, too.
Book direct on BA site.