Originally Posted by
STBCypriot
It works. Put BNA in the "FROM" field and then just click on the "TO" field and it will pop up with "Flexible? Search "everywhere"". Just click that and there you go.
OP is looking for inbound flights, not outbound flights. "Everywhere" doesn't work in the "From" field.
The reverse search can be a decent proxy for possible originations, but it won't provide accurate schedule or fare data. Which is what OP seeks.