JetBlue TrueBlue - When are Christmas Schedules loaded - also IAD or ORD to FLL?

When are the Christmas schedules likely to be loaded? - I want to book my United transatlantic to lock in the upgrade but need to know if Jetblue can offer me a better connection to FLL than UA.

Also if you had the choice - arriving international on UA connecting to a B6 flight to FLL, would you choose ORD or IAD. I know UA's bit of ORD quite well but have never flown Jetblue from there and have never even been to IAD.

If I have to hang around I use Priority Pass which is good for the NW club at IAD and NW/CO in T2, DL at T3 and Swiss at T5 in ORD. Do any of these locations work with Jetblue?

I would connect through IAD. Jetblue flied direct from IAD to FLL, while to fly from ORD, you'd need to connect through JFK or BOS. Currently, the flight times for IAD-FLL are 8:00, 10:20, 14:40, and 16:40, each at about 2:40 flight time (checked for Apr 14, and could very well change for the Xmas season).

As for when Christmas schedules are loaded, it varies every year, but I'd guess sometime around June-ish.

Jetblue doesn't participate in any club agreements, AFAIK.