Every day, approximately 2500 flights, operated by over 50 airlines, arrive or depart from a brazilian airport and are registered by the National Civil Aviation Agency (ANAC). ANAC provides that data, allowing us to analyse it in order to answer questions like: what airline has more delayed or canceled flights? Whats the busiest airport in Brazil? A few os those insights are presented here:
We can clearly see how Azul has a bigger focus in regional flights, and how Avianca Brasil only operates in the southern part of the country. Meanwhile, Tam is clearly the leader in international routes, specially departing from Guarulhos (Sao Paulo).
The number of delays caused by “Aeroportos com Restricoes Operacionais” (Airport with operational restriction) in flights operated by TAM really stands out. What’s the airport where this happens the most?
Clearly, the problem is at the Guarulhos Airport. The 8 routes with the biggest number of delays caused by “Airport Operational Restriction” involve the airport. However, the problem seems to only affect TAM. To confirm this hypothesis, let’s take a look at the number of delays at TAM that were justified this way compared to the other airlines in the same airport:
It is easy to see that a huge proportion of delays in flights operated by TAM that arrive/departure from Guarulhos are justified by “Airport Operational Restrictions”. Actually, a huge proportion of delays in flights operated by TAM Transportes (TAM’s transportation division) also has the same justification. However, a lot of flights operated by other companies arrive in Guarulhos at the same time and don’t face airport restrictions. The most probable conclusion is that TAM needs to drastically improve their flights schedule involving the busiest airport in Brazil. The second most probable conclusion is that TAM is just lying about their delay reasons in flights involving Guarulhos.