Well, if you are travelling economy, it won't be that bad.
> There are PTVs at every seat on the 767-300s
>I find there is a large economy plus section on these planes, so it might be possible to get some if you sweet-talk the agent
>There is most likely a dinner after departure and a light breakfast prior to arrival in Brazil
international flights usually have very friendly and outgoing cabin crews; if you need anything, just ask!
>767s are a very comfortable a/c.
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I hope you have a great flight on United!
The opinions expressed here are mine and not necessarily those of Delta Air Lines.