Originally Posted by
inlanikai
There is no first class on DL180, DTW-LGA. It is business class, probably for the reason you mention that it is an extension of an int'l flight. A search for X inventory (Biz upgrade) shows 1 available.
Correct, if you do a general Flight Availability search (or add F and J "other" classes to the Award/Upgrade search) you'll see that DL 180 has a J class but not an F class.