Due to engines theCondor 753s would work for UA and not DL. They are an average of 20.4 years old and could add low ASM cost lift from hub-to-hub/Hawaii and limited transcon markets..
As for 763s, there are about 10 that are in the range of age equaling the HA birds UA took last year.

Why could the not be integrated?

Also, unrelated, did United announce yet where all the new CR5 will be flying? Hoping for MSN-EWR...

Major Polaris Milestone Reached:
By my count with 763 N669UA sked to exit HKG 2/8, UA will have 100 widebodies with Polaris seating. This includes those 77W, 789 and 78X that were delivered with Polaris. 86 of the 100 have Premium Economy Class installed.

763 details:
N669UA sked to exit HKG 2757/8Feb in High J Polaris/PP
N673UA sked to enter HKG 2754/6Feb for High J Polaris/PP

Airlineroute.net published an update on new service today: https://www.routesonline.com/news/38...-feb-may-2020/

No added service to Madison.

I think the plan was to buy them for parts/engines. Unlikely, but not off the table entirely, that they'll ever be added to the active fleet.

What is the current condition of the 752 Intl fleet? Are flights from EWR/IAD still the old CO birds?

Looking at timings and a 752 at 1200 versus a shiny 78X at 0900 so was wondering.

Yes, they are still the old sCO birds, and they are as tired as one could imagine. That said, I would ride the 752 if you are in Y.

319:
N841UA sked to exit SFO 2411/7Feb in 12F configuration (45 of 72 complete)
N881UA, former CZ unit sked to enter AMA paint 2731/7Feb

738:
N37293 entered AMA 2749/6Feb for EvoBlu livery

752 undergoing reconfiguration to 16/160 with lots of upgrades and refreshing. 5 complete, 4 now in mod out of 40 units, I'm pretty sure they just float new units on any segment as seat configuration isn't that much different.

No service west of the Mississippi except STL. Hope they get some of these birds in/out of DEN as the the 700s being retrofitted means our ratio of Devil’s Chariots and e145s seems to have gone up. We still get an occasional 700 or 175 (!!!) on my routes, but it’s now a rare treat that used to be 80% 700s.

Yep, we still have lots of 200's out of SBA. I do recall reading an article that unfortunately they're only planning ORD and EWR for now, no DEN / LAX / SFO for the 500's :(

Would these be the Shaheen and Bulgarian Eagle/Germania frames (4866, 4867, 4868, 4870)? They seem to have the same engines as the former CZ frames (IAE V2524-A5).

I can't imagine the Easy Jet frames are for parts since they have so many planned...and they have CFM engines.

Which made this the 100th Polaris plane, as it beat the (previously mentioned) High J exiting HKG on 8th.

And I can attest that this delivery wasn’t sked in FlightAware when Bunky posted previously.

320:
N488UA exited AMA 2732/7Feb in EvoBlu livery

752:
N12116 sked to exit MIA 2753/8Feb in 16/160 configuration.

789:
N26960 entered VCV 2751/7Feb, could be warranty work, 5 years since painted. There should be several widebodies idle due Coronavirus cancellations.