Originally Posted by
webazoid
Any personal experience? I didn’t see any official word online and 800 number for reservation kept putting me on hold.
https://www.jal.co.jp/en/jalmile/rules_content.html
See #5. Note that using AA miles, you'll want to check that forum for those rules & procedure. Some partners allow use of their own miles for fractional infant tickets, some require you to purchase the infant ticket at fraction of the cash ticket price in conjunction with the operating airline, others (AS for instance) may not allow infant tickets on award tickets.