Originally Posted by
pkoo
Giving up on finding business class availability on EI with my avios. I’d rather use it on AA’s domestic business or first. Is booking through EI the way to go or should I transfer to BA for this?
AFAIK you can only use EI Avios for rewards on IAG group airlines (BA, EI, IB, VY).
To book an AA reward to you would need to transfer to BA (not sure if it is possible or better value to transfer and book via IB).