It would be really nice to be able to search/filter my entries.

After entering 550 flights, if I find a mistake or want to see what trips I have taken in or out of a given airport, or on a given route, there is no way. It makes it really difficult to correct errors.

Suggestion:

On the flight data page, add filter by Origin, Destination, routing, airline, airplane to show only a subset of flights, with the same edit, delete,copy, rt optioms.