DL 6041 JFK-RIC departs 645p exists, but there is no availability.
DL 5268 LGA-RIC departs 715p, has a few seats open, but it might be hard to make it to LGA that quickly.
DL 5123 JFK-ORF (norfolk) departs 805p, no seats availabie.
DL will not put her on JetBlue, as there is no interline agreement between these airlines (I believe that's still correct). But there is a 10:10 flight she could take on JetBlue. Remember if she doesn't fly one of the legs of her trip, the rest of the reservation will get canceled...not sure how folks work around that these days.
Good luck