Originally Posted by
TravelingZoomer
Do you have Marriott? That’s pretty much the only way
Though you can leverage that to also perform indirect transfers from either Amex Membership Rewards or Chase Ultimate Rewards, since they both support transfers to Marriott. So Marriott would act as a conduit: Amex/Chase -> Marriott -> Alaska
Might not get the best value out of such a transfer, but if you just need a few hundred points, it might be an option to consider.