Originally Posted by
deirdre
When I had a mixed UA/CO set of flights recently, there were separate PNRs for the UA and CO segments. I could check into CO with the CO PNR and United with the United PNR.
You always have a seperate PNR for each airline in your itin.
I tried checking in on the apps and websites. No go. UA app/site told me to check in with CO. CO told me I had to go to the airport to check in. Even after check in, I went to one of the dual-kiosk things in EWR to try and change my seat on the second flight, and it told me that my eticket didn't exist, or something like that. Though it must have - I was able to board both flights ok.