This is another great use of Flightstats. If you have various options for an award ticket and you want to avoid flights that are notorious for being late or cancelled, check this. On the Flightstats home page, click on the Flights tab, then “On-time Performance”. Type your route into the appropriate boxes.
Now let’s see which flights have the best on-time record. Ignore the codeshares and just look at the actual airlines who are operating the flights. Look at the percentage of flights on time and how many minutes the delayed flights lost.
Those last two AA flights are a worry. In both cases the average delay was around an hour and between 57-73% of flights experienced some delay. None of them were cancelled so at least that is good. But if my final destination was elsewhere in Brazil, I would be leaving a very generous layover to make that connection!
If you click on AA929 at the bottom of the display, you can get more details. 17 out of 61 flights were either very late or excessive.