Any clue why Delta has significantly reduced the direct flight options from PDX to any airport in New York?
Till last year, I recall DL has 3 direct flights (1 departing morning, another around noon and then one red eye) and similarly on the return leg.
Now, I see only 1 direct flight which is a morning departure from PDX and also similarly for the return leg from JFK.

I would have thought considering its DL, they would have more flights in this route.