YIPPIE SKIPPIE, A NEW CHALLENGE! (CADET CHALLENGE #1)

Here is the latest cadet challenge:

On Saturday, eight flights-J,K,L,M,N,O, P, and R-are scheduled to depart from a small airport in Middletown.  For safety reasons, no two flights depart at the same time, and each flight departs exactly once (duh!).  The flights depart according to the following conditions:

Flight R departs at some time after flight L.
Flight K departs at some time after flight P, but before flight R.
Flight L departs at some time before flight K, and flight N departs at some time after flight R.
Flight J is the seventh flight to depart.

What is a possible departure order from first to last?

This is the first qualifying challenge for the prize to be awarded in June.  This challenge will conclude 0730, Friday, 2 August.  Good luck!