Flying a US flight on AA metal. Use AA or BA status? Upgrade options?
New to AA.
Tomorrow flying BCN-JFK-SAN-DFW on flights ticketed by US.
Operated by and flight numbers are AA.
Gold status with AA, emerald with BA.
Any benefit putting BA FF number instead of AA?
What are my paid upgrade options?
If buying an upgrade at airport do you get cabin bonus, etc. if crediting to AA?
I have already picked my MCE seats free.
Thanks in advance for your time!