Originally Posted by
ryanbriar
Assuming that you’re going AA to AA, they will protect you (even on separate tickets) should you misconnect in ORD. It won’t be “seamless”, but you could be listed as a no-show if your UA flight is delayed. I’ve had an agent cross-reference the PNRs in situations like this.
Currently I am booked AA paid ticket to connect to an AA redemption ticket flown on JAL's metal. All separate tickets. Can't have getting to the JAL flight messed up. Not after the issue I had that took quite some time and effort to fix, when JAL added service to NRT and changed my original booked flight to HND's departure by 12 hours.