As for international Polaris wide bodies, once the enormous Polaris Lounge opens at EWR this summer (hopefully) it would be smart to have dedicated Polaris aircraft to at least LHR. That is such a competitive route. Having the full Polaris experience from gate to deplaning at LHR would go a long way for UA’s reputation in the NYC area.
There wil be 14 763 Polaris aircraft by Fall. There are 6 now and soon to be 7.
If UA wants to segregate these aircraft, I think they would consider the following packages, maybe in this order:
6 units 5 RTs EWR-LHR - there is plenty of aircraft time for maint work in LHR and an overnight in EWR.
3 units 3 RT's ORD-LHR - not much maint time, but can mix in with EWR-LHR operation.
4 units for 3 RT IAD-LHR - one aircraft in IAD would have a 20+ hour layover or swap with other IAD-LHR flights. If that long turn is being used currently to operate other flights, then adding IAD would use more than 4 units total to operate. One round trip could be removed from Polaris is keep utilize this aircraft time and reduce IAD-LHR count to 3 units needed.
1 unit for a spare OR for a round trip to ORD-AMS, ORD-BRU or ORD-CDG.
Total 14 units