I'll assume you're not some creepy stalker but given that this information isn't really hard to obtain I don't see the harm in posting it. Delta lists ATL and LAX flights only out of LIR and it appears that the LIR-LAX direct flight stops on 9/1. The connecting flight through ATL does not fly on Wednesday. I assume this means she's taking the last direct flight this Wednesday LIR-LAX DL 204 which arrives at 12:18pm.

ATLANTA, GABG(ATL) 1587 mi
1:14 7:15 306 0 X3 L/ 738
Eff. Aug. 27 - Sep. 3

LOS ANGELES, CABG(LAX) 2626 mi
7:30 12:15 204 0 6 BS 752
Disc. Sep. 1; Arrives 12 18p eff Aug. 25

Flight schedule