Actually Raleigh is served by AA on flights to LHR, they are the final origin / destination (or WERE) for flights via JFK, just like Delta's Atlanta - JFK - Moscow flight. I think it's the same aircraft as well (or WAS). Maybe this is no longer the case since AA dehubbed Raleigh but I've seen Raleigh on the arrivals board at LHR. Technically those above are correct, it's never been nonstop but the airports were linked by direct service and for all I know still are. Nice city too (Raleigh).
fly Saha Air 707s daily from Tehran's downtown Mehrabad to Mashhad, Kish Island and Ahwaz