Originally Posted by
salut0
So are there other methods of upgrading, like using miles? Can you do so as a non-elite member of JAL Mileage Bank?
And is it possible to transfer other kinds of points or miles into JAL miles, and if so, which ones?
Upgrade using miles are possible but require certain (higher) fare classes. Have successfully done Economy->Business upgrades using miles in the past. My understanding is any JMB member can upgrade using miles. Elite levels may come into play when waitlisting for an upgrade.
https://www.jal.co.jp/jp/en/jalmile/use/jal/upgrade/
The only transfer partner that I know of is Marriott but the conversion rates are not that great.