Quick questions, and please let me know if I'm in the wrong place to ask this.
1) Booked a UA ticket for CVG-ORD-LHR-NCL. The last leg is on BA (didn't even know they do that). For the return trip, I'll be checking-in with BA. How does priority luggage, priority check-in/security, and lounge access work? The UA portion is on First & Polaris and the BA portion is on Club Europe, which makes it easier since Club Europe benefits would be more than enough. Just curious how this works when they are not partner airlines.
2) How the hell does Google Flights find these combinations, when they are not searchable on UA's website but bookable when clicking on Google's link?
Thanks in advance
