How do I get from Buenos Aires to Porto Alegre?

There are at least two companies going from Buenos Aires to Porto Alegre: Pluma Internacional and Flechabus.

Pluma has no prices nor timetables on its page (you have to call a telephone number), but the trip with Flechabus (company that provides information on its website) costs from AR$198. It’s a 17-hour trip.

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