Originally Posted by
Adam Smith
No, it depends on the flights you take. If you take AC91 all the way, it will credit as EZE-YYZ. If you take AC97 from EZE to GRU then AC91 from GRU to YYZ, it will credit as EZE-GRU-YYZ.
He asked about EZE-GRU-YYZ hence I avoided giving a long answer but in hindsight I should given more details since context matters here.