Good luck finding cheaper during December and January. I have been looking from last week and everything is $ 2000.00, including Turkish. Flying from DFW, Dallas TX. I had a Reservation in China Southern Airlines flying Dec 14 and coming back Jan 14 for almost $ 1800. Now same ticket is extra $ 400. Travel agent told he that airlines cancel the reservation and it was less than 24 hrs. They might have made a mistake.

Try google\flights. I am looking one for $ 2000.00 via AA, and Qatar (london\doha) and coming back with Etihad and AA (Abu Dabi\London or Paris\Frankfurt).
I am planning to wait till tomorrow and get it. I hate AA (bad experience), other than that its a 30 hrs flight both ways. Off course lots of money.