When looking up my future AUS-SEA RT, I found this on ExpertFlyer. Could someone go over it with me and explain possible routings I could take to maximize mileage?

V FARE BASIS BK FARE TRAVEL-TICKET AP MINMAX RTG
1 TA14A0NA T X 109.00 ---- 14/1 -/ - 169
PASSENGER TYPE-ADT AUTO PRICE-YES
FROM-AUS TO-SEA CXR-DL TVL-02MAR12 RULE-9050 DFR/11
FARE BASIS-TA14A0NA SPECIAL FARE DIS-N VENDOR-ATP
FARE TYPE-SIP OW-INSTANT PURCHASE
USD 101.40 0169 E19JAN12 D-INFINITY FC-TA14A0NA FN-
SYSTEM DATES - CREATED 19JAN12/1538 EXPIRES INFINITY

PUBLISHED RTG AUS-SEA/DL169 /TAR-DRG1 EF-19JAN12 DIS-INDEF

1. AUS-LAX/MEM/MSP/SEA/SLC-SEA
2. AUS-SEA

I am currently AUS-MSP-SEA-SLC-AUS