Courtesy of my Corpo Booking Tool:

16MAY MON SCL/AST IPC/CST-2
1LA 841 J7 CL D7 I7 ZC Y7 SCLIPC 0850 1245 787 B 0 1 DCA /E
B7 HC KC MC LC VC XC SC NC QC OC GC AC EC
2LA 833 J7 CL D3 I1 ZC Y7 SCLIPC 1810 2205 787 D 0 1 DCA /E
B7 H7 K7 MC LC VC XC SC NC QC OC GC AC EC

19MAY THU IPC/CST SCL/AST‡2
1LA 842 J7 CL D7 I7 ZC Y7 IPCSCL 1505 2135 787 D 0 X2 DCA /E
B7 H7 K7 M7 L7 V7 XC S7 NC QC OC GC AC EC

As you can see flights are fairly full, the lowest fare (when requested to price in AUD) is:

16MAY DEPARTURE DATE-----LAST DAY TO PURCHASE 07MAR/2359
BASE FARE EQUIV AMT TAXES/FEES/CHARGES TOTAL
1- USD634.00 AUD890.00 29.00CL AUD919.00ADT
634.00 890.00 29.00 919.00TTL
ADT-01 KLEFX248 SLESP247
SCL LA IPC Q45.00 359.50LA SCL Q45.00 184.50USD634.00END
REF FEE APPLIES
NONREF/CHG FEE APPLIES
VALIDATING CARRIER - LA
CAT 15 SALES RESTRICTIONS FREE TEXT FOUND - VERIFY RULES
BAGGAGE INFO AVAILABLE - SEE WP*BAG