Two children traveling on a direct flight with family on each end. Per the airline rules (Alaska Airlines), for a teenager, traveling as a designated 'unaccompanied minor' is optional. Can a teenager be the "company" for an 9 y/o so that neither are "unaccompanied minors"?
According to Alaska's policy:
Unaccompanied minor service is required for all children, ages 5 through 12 years old, traveling without a parent, legal guardian, or other adult at least 18 years of age.
So this would only be possible if the teenager was 18 or over.