Originally Posted by iahphx

Seems a bit like an oddball route. Is any subsidy involved?

Logic would suggest that Boston doesn't have a lot of O/D traffic to GRU, and it also doesn't have a ton of feed -- especially Oneworld feed. It's also a hop, skip and a jump "in the right direction" to NYC, which has a lot of South American feed.

If LATAM wanted to experiment with a new Northeast USA city, I would think it would be PHL, where their partner AA has lots of connecting flights.