Bus Tickets from Posadas, AR to Buenos Aires, AR

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TodayJul 21
from $44
TomorrowJul 22
from $44
WedJul 23
from $44
ThuJul 24
from $44
FriJul 25
SatJul 26
SunJul 27
from $55
MonJul 28
from $55

Cheap buses leaving tomorrow

One passenger / one way

  • This trip is recommended because it is: Cheapest
    Departure time: July 22 at
    Departure city: Posadas
    Departure location: Terminal de Ómnibus de Posadas
    Arrival time: July 23 at
    Destination city: Buenos Aires
    Destination location: Terminal de Retiro
    Operated by: Rio UruguayRio Uruguay
    Vehicle: BusDuration:
  • This trip is recommended because it is: Fastest
    Departure time: July 22 at
    Departure city: Posadas
    Departure location: Terminal de Ómnibus de Posadas
    Arrival time: July 23 at
    Destination city: Buenos Aires
    Destination location: Terminal de Retiro
    Operated by: Rio UruguayRio Uruguay
    Vehicle: BusDuration:
  • Departure time: July 22 at
    Departure city: Posadas
    Departure location: Terminal de Ómnibus de Posadas
    Arrival time: July 23 at
    Destination city: Buenos Aires
    Destination location: Terminal de Retiro
    Operated by: Rio UruguayRio Uruguay
    Vehicle: BusDuration:
  • Departure time: July 22 at
    Departure city: Posadas
    Departure location: Terminal de Ómnibus de Posadas
    Arrival time: July 23 at
    Destination city: Buenos Aires
    Destination location: Terminal Retiro
    Operated by: Crucero del SurCrucero del Sur
    Vehicle: BusDuration:
  • Departure time: July 22 at
    Departure city: Posadas
    Departure location: Terminal de Ómnibus de Posadas
    Arrival time: July 23 at
    Destination city: Buenos Aires
    Destination location: Terminal de Retiro
    Operated by: Flecha BusFlecha Bus
    Vehicle: BusDuration:

Accepted payments

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Bus Posadas to Buenos Aires: Trip Overview

Average ticket price$85
Average bus trip duration13h 40m
Number of daily buses16
Earliest bus departure3:45pm
Distance523 miles (842 km)
Latest bus departure11:55pm

Posadas to Buenos Aires Bus

Busbud shows you the best bus ticket fares and bus schedules so you can easily plan and book a trip by bus from Posadas to Buenos Aires.

We make sure you can find a bus service from Posadas to Buenos Aires from the most reliable bus companies operating this trip.

From cheap bus tickets to more luxurious buses traveling from Posadas to Buenos Aires, we offer a wide range of bus services to best suit your needs depending on how much your budget is.

Frequently asked questions for your trip Posadas, AR - Buenos Aires, AR

Find cheapest prices for buses

Price is for a one-way ticket for one passenger and based on past searches.

Best price found
07/19
$49
07/20
$40
Today
$41
07/22
$40
07/23
$40
07/24
$41
07/25
$39
07/26
$41
busbud logoThe cheapest trip from Posadas to Buenos Aires was searched and found on Jul 25, 2025 with a price of $39

To save money and be sure you have the best seat, it's a good idea to buy your bus tickets from Posadas to Buenos Aires, as early as possible.

You can expect to pay from $39 to $100 for a bus ticket from Posadas to Buenos Aires based on the last 2 days. You can expect to find the cheapest price for the trip at $39 which is on 2025-07-25.

Usually Via Tac will charge you higher prices for tickets closer to the departure date. To find the best prices, you should be flexible on your date of travel.

About Bus Travel

Bus Travel Tips

If you're abroad, study some local language. Not only could it get you out of a pickle during your bus trip from Posadas to Buenos Aires but it'll also be endearing to native speakers who will surely appreciate your effort.

Start sightseeing the minute your bus leaves the station. If you're on the night bus from Posadas to Buenos Aires, get comfy and count the stars.

Taking the bus creates the smallest carbon footprint compared to other modes of transport. Not to mention that buses will allow you to discover scenic gems from Posadas to Buenos Aires that are otherwise impossible to come by with a plane.

Tune out to the fine sounds of your best music playlist on your bus trip from Posadas to Buenos Aires while indulging in miles on end of beautiful scenic views.

Did you know?

9.2% of ground transportation in Europe is done by bus versus 7.4% by train.

It takes 27 hours to go by bus from Lima to Cusco, one of the craziest bus trips on the world. This route is used daily by locals and backpackers.

The Superbus, created by a Dutch engineer is the world's fastest bus with 250 km/h. Too bad it's only a prototype for now.

Will you be returning to Posadas by bus?

Bus from Posadas to Buenos Aires

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