JFK-ANC is a good fare if you can work out the time for stopovers in San Francisco. JFK-LAX(PS)-SFO(stopover)-ANC-SFO(stopover)-LAX-JFK(PS) for just under 10,000 EQM.

This can be ticketed for $414 in W class after Labor Day weekend and through mid-November. The stopovers in SF seem to be the key to get the low fare.

It is great for me because I get to break up the trip and be home for a couple of weeks on the stopovers. I also looked at several itineraries with a one night stopover in SFO, so it is possible to do that. I couldn't get it to fare in the $400s without the stopovers in SFO.