Originally Posted by bhatnasx
Seems like DL doesn't allow you to combine fares - another reason why NW is jut that much better! ^
I think CO and NW are the most flexible with allowing mixed F/Y awards (or standard/Rulebuster). UA, AA, DL, AS, etc. generally don't allow this. Then again, UA/AA also tend to have better award availability, so it may not be as big of an issue.