Originally Posted by ClipperDelta

There is still hope that some mainline will be remaining. The skeds at delta.com show 10 flights a day in Sept. between LAX and JFK but that includes 5 existing mainline and 5 Song. flysong.com shows 5 Song flights as well. Looking at the Song schedule, the departures are:
7:00AM
10:20AM
12:10PM
10:00PM
10:30PM
There are some holes in the sked such as 8:00am, 9:00am, and 3:00pm which maybe fulfilled by mainline.
Similarly, from JFK to LAX, the Song skeds are:
7:00AM
8:00AM
4:15PM
7:45PM
9:45PM
The holes are around 3:00PM something, 5:30PM, and 12:00Noon, which again, could be filled by mainline. For example, there is a bank of transatlantic flights that arrive JFK around 3:30pm which should connect to something around 5:30pm - 6:00pm.

Also, for JFK-SEA, the news release indicated a total of 3 flights a day but both delta.com and flysong.com only show 1 Song flight even into September when the schedule is supposed to be at the full 3 daily flights. That Song flight is also scheduled at different times from the existing mainline flights (2 daily).