On full-year totals the fall took Brazilian air travel back to about where it stood four years earlier. Only part of the loss came back the following year, and a year later the total edged past the one before the fall.
What this shows: The chart covers 2012 Q4 to 2019 Q4 and its vertical axis shows Passengers in the latest four quarters (2015 total = 100). The latest value is 101.3. Data run through 2019 Q4.