Just to clarify, Hindukid is using ATL as the connection point (MHT-ATL arrives at 657p and ATL-LAX departs at 7p).
DL seems to pay little mind to MHT. I am curious how kathnunnely will find it.
Incidentally, I once had a ticket MHT-LAX which I did not use for a confluence of reasons (including a $215 nonstop BOS-LAX).