Looking in ExpertFlyer, I cannot see any direct flights between ANC and PHL (for any airlines, not just Oneworld Airlines - i.e. AS or AA)
If that is the case, then to get from ANC to PHL you would need to connect somewhere (and AFAIK the only places to connect are on the west coast or in the mid-west) and so there is no transcontinental "non-stop or single plane service" flight involving ANC