Originally Posted by mtkeller

Since I'm within 48 hours of departure, I have tried ACI both on mobile and the website. Mobile said to go to the airport. Web gave me a check-in acknowledgement, but it's quite clear that it's not a boarding pass. My return is a separate KE ticket, so there may be a doc check block on things, too.

Sounds like I will probably wind up chilling airside in T3 and visiting Tortas Frontera and then getting the landside bus (train is being renovated) over to T5 closer to the time that BR will open their checkin counters, unless someone else has an idea. (I assume walking to UA counters in the domestic terminals is unlikely to produce a BP since they are neither the operating nor issuing carrier for my ticket, so the *A connection won't do much. I would be happy to be corrected if someone has experience.)