DP: I think other threads or blogs have stated it before, but AR flights are not visible on Delta's website. I just chatted with a Delta agent today who at first was only able to see cash prices for AR flights, but later was able to pull up AR inventory after changing some sort of settings on his search/booking engine. Not exactly sure what he did but after that switch, he was able to see several flights I fed him to test it out.

Sample fares in June 2024:

• AEP to USH in econ priced out to 15900 Skymiles + $3.70 in taxes
• IGR to AEP in econ priced out to 12700 Skymiles + $3.70 in taxes
• AEP to SCL in econ priced out to 12700 Skymiles + $76.40 in taxes

The flights matched what was available through AF Flying Blue (which is how I knew there was award availability). AF was cheaper for the short flights (IGR-AEP, AEP-SCL), but DL was cheaper for the longer flight (AEP-USH). I haven't decided whether to use DL or AF or cash to book my domestic flight within Argentina yet, but good to know that it is once again available if the cash fare is too high. Hope this helps others!