My wife and I are thinking of taking a trip to the Azores next summer. Unfortunately, the only airline that I could find that flies direct to the Azores from Boston is Sata, which is not a member of any airline alliances. I did notice however that Sata does codeshare with TAP Portugal who is a member of star alliance. Is it possible to book the TAP Portugal flight that is operated by Sata with United miles or another Star Alliance member's miles?