yeah, had this happen yesterday for tomorrow’s departure (BA501/BA49 LIS-LHR-SEA), and when I went to OLCI this morning I had to enter it all over again bc the system said “Unable to check in on line; please see an agent at the airport to check in”
re-entered API and got the same message
< doubtful, but is this perhaps related to having AA-issued tix and an AA codeshare flight number on the PNR? >
update: no issues at the airport