I noticed that most fares into and out of AUS on AA don't have the usual saturday night stay restriction as well. For instance, when I would commute DFW-SAN the round trip fare would be $900 plus for travel on Tuesday returning on Friday. When I would route through AUS (DFW-AUS-LAX-SAN, or DFW-AUS-DFW-SAN) the fares would be in the $300 range. And oh, the miles on such flights...
Maybe this info will help?
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preez mine da pratform gahp.