OK NYC this one you should REALLY look at. The number are just out of this world. You will have to take Friday off from work and overnight in Oslo Norway but what a way to spend a fall day! Look at these totals:
11,916 MQMs at 5.4CPM
Bookable on Delta.com
DM yields a monstrous 26,812 Skymiles per CWSI.net!
You can thank NAI or Norwegian Airlines for this price / attack fare. Route via ATL & CDG for highest yields and they are nice!
EDIT: It is DARK in DEC and in and out of 2 airports but notice what reader Matt S. says:
Finding even better deals… Leave Friday evening and back by Sunday afternoon with enough time to enjoy one night in Oslo…
$468 All in
JFK-CDG (Friday, Dec 5th; 5:40pm)
CDG-OSL(OSL) (Sat, Dec 6th; 9:40am)
OSL(TRF!)-AMS (Sun, Dec 7th 6:30am)
AMS-JFK (Sun, Dec 7th 10:50am arriving at 1:20pm)