Alaska Airlines has a very low $73.10 each way fare for American Airlines operated flights between Los Angeles LAX and Atlanta ATL starting in September 2016 and into February 2017. American Airlines charges $172 each way for same flights.
Availability is good in October including several weekend dates, early November, early December, and nearly every date in January and February 2017. This fare at time of posting is even available during some dates of December holiday season.
Alaska Airlines ticket for AA-operated flights
Los Angeles LAX – Atlanta ATL (nonstop flights)
$146.20 round trip Sunday December 18 – Saturday December 31
This is the second Alaska Airlines fare I have posted recently with fares for American Airlines flights priced at less than half the price of the American Airlines site for the same flights.
Best part is Alaska economy T class earns 100% redeemable miles in Alaska Mileage Plan or AAdvantage. Since this Alaska Airlines ticket shows an AA flight number, I assume it earns 100% EQM with AAdvantage too.