Originally Posted by
rollthere
If I were to ticket using the online tool through BA, can I then call AA and have them convert all eligible flights to AA codeshare flight numbers?
After the first flight, you can phone BA and have them make the changes - I did this last year on my ex-CPT DONE5, changed two flights (JJ and JL) to the AA codeshares.
If you're wanting to change the first flight (which presumably is operated by BA as it has issued the ticket), then BA might not be so keen