Originally Posted by
ilkhats44
Look like my only option will be to get a LBFU on check in. Will I be able to check in on AA.com for the AA operated flight from LHR-DFW?
You will, I believe, check in on the BA website - I would not expect to get any discounted offer at check in for an AA operated flight
You would have a better chance if you were to switch to a BA flight