Originally Posted by
84fiero
Definitely go with Avios, we used them for all of our domestic Australia and SYD-AKL travel for our trip next week. In some cases Avios are cheaper than AA and it's only a nominal amount of airport taxes.
But sometimes you do have to search segment by segment, especially if you're getting that error even with a known valid route. Once I kept getting the error for some segment, but on the exact reverse of the route it went through fine. Just BA.com "quirks"
Segment by segment also means separate awards for each segment with Adios, while AA is one award for origin to destination. So there is no simple answer - it depends on distance. For shorter distances and direct flights, Adios can be better. For longer distances with connections, AA might be better.