Also works as PHL-LAX
UA:$150 LAX-PHL G-fare is a very nice find! Looks like it also works in reverse.(PHL-LAX), as this is actually based on a one-way fare.
BTW, max routing would be LAX-SFO-PHL for >6000 PQM, followed by LAX-IAH/IAD-PHL for >5400 PQM. Connecting via ORD actually minimizes mileage.