Lisbon is the place to be for Brazilians making a stop over on their way into Europe and back. Happens just about every other week. VC-1, VC-2, VC-99 and this year even a SC-105 and KC-390. Tomorrow another VC-99 expected (2581) and the day after yet another (2585).
If you see a Brazilian flying over Europe you have a 90% chance it just came from Lisbon, or is heading to Lisbon.