Join Date: May 1998
Location: Reno, NV (RNO)
Programs: AA LT Platinum, AS, UA Premier Silver, DL, HHonors Gold, Marriott LT Titanium, Hyatt, IHG Platinum
Posts: 4,723
Even that last benefit is somewhat of a misnomer. You cannot claim awards on UA Express or DL Express Connection Link (or whatever they call it now) so it is not possible to get to many smaller destinations using UA miles on DL (or vice versa). Since both carriers fly to most of the big detinations anyway this is not much of a benefit.