Bus from Santiago, RM to Buenos Aires from $74

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Compare all timetables for the bus from Santiago, RM to Buenos Aires

Here is a selection of the cheapest bus trips from the schedule from Santiago, RM to Buenos Aires from various bus operators like CATA Internacional or Buses Pullman Fénix Internacional for the next days.
today
tomorrow
$93
Thursday
$93
Friday
$93
Saturday
$93
Sunday
Monday
$93

Cheapest bus trips tomorrow

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
CATA Internacional 23h 30m 9:00 AM Santiago, RM Los Héroes Station 8:30 AM Buenos Aires Retiro Bus Station  Premium Economy $93
CATA Internacional 19h 50m 9:00 AM Santiago, RM Sur Bus Station 4:50 AM Buenos Aires Liniers Bus Station  Premium Economy $93
  • Did you know that if you travel from Santiago, RM to Buenos Aires via Mendoza, you can save more than $22? You can find the corresponding connections below.
    • Nevada Internacional
      22h 54m
      0
      9:45 AM
      Santiago, RM
      Sur Bus Station
      5:45 PM
      Mendoza
      Bus Station
      0
      Nevada Internacional
      Premium Economy
      $37
      • Waiting Time 1h 15m
    • CATA Internacional
      13h 39m
      0
      7:00 PM
      Mendoza
      Bus Station
      8:39 AM
      Buenos Aires
      Villa Tesei
      0
      CATA Internacional
      Premium Economy
      $34
    Travel time is 3h 4m longer, but you will save $22

Cheapest bus trips Thursday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
CATA Internacional 23h 30m 9:00 AM Santiago, RM Los Héroes Station 8:30 AM Buenos Aires Retiro Bus Station  Premium Economy $93
CATA Internacional 19h 50m 9:00 AM Santiago, RM Sur Bus Station 4:50 AM Buenos Aires Liniers Bus Station  Premium Economy $93
Buses Pullman Fénix Internacional 19h 30m 9:30 AM Santiago, RM Sur Bus Station 5:00 AM Buenos Aires Once  First Class $123
Buses Pullman Fénix Internacional 19h 0m 10:00 AM Santiago, RM Sur Bus Station 5:00 AM Buenos Aires Once  First Class $123
  • Did you know that if you travel from Santiago, RM to Buenos Aires via Mendoza, you can save more than $22? You can find the corresponding connections below.
    • Nevada Internacional
      22h 54m
      0
      9:45 AM
      Santiago, RM
      Sur Bus Station
      5:45 PM
      Mendoza
      Bus Station
      0
      Nevada Internacional
      Premium Economy
      $37
      • Waiting Time 1h 15m
    • CATA Internacional
      13h 39m
      0
      7:00 PM
      Mendoza
      Bus Station
      8:39 AM
      Buenos Aires
      Villa Tesei
      0
      CATA Internacional
      Premium Economy
      $34
    Travel time is 3h 54m longer, but you will save $22

Cheapest bus trips Friday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
CATA Internacional 23h 30m 9:00 AM Santiago, RM Los Héroes Station 8:30 AM Buenos Aires Retiro Bus Station  Premium Economy $93
CATA Internacional 19h 50m 9:00 AM Santiago, RM Sur Bus Station 4:50 AM Buenos Aires Liniers Bus Station  Premium Economy $93
  • Did you know that if you travel from Santiago, RM to Buenos Aires via Mendoza, you can save more than $22? You can find the corresponding connections below.
    • Nevada Internacional
      22h 54m
      0
      9:45 AM
      Santiago, RM
      Sur Bus Station
      5:45 PM
      Mendoza
      Bus Station
      0
      Nevada Internacional
      Premium Economy
      $37
      • Waiting Time 1h 15m
    • CATA Internacional
      13h 39m
      0
      7:00 PM
      Mendoza
      Bus Station
      8:39 AM
      Buenos Aires
      Villa Tesei
      0
      CATA Internacional
      Premium Economy
      $34
    Travel time is 3h 4m longer, but you will save $22

Cheapest bus trips Saturday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
CATA Internacional 23h 30m 9:00 AM Santiago, RM Los Héroes Station 8:30 AM Buenos Aires Retiro Bus Station  Premium Economy $93
CATA Internacional 19h 50m 9:00 AM Santiago, RM Sur Bus Station 4:50 AM Buenos Aires Liniers Bus Station  Premium Economy $93
  • Did you know that if you travel from Santiago, RM to Buenos Aires via Mendoza, you can save more than $22? You can find the corresponding connections below.
    • Nevada Internacional
      22h 54m
      0
      9:45 AM
      Santiago, RM
      Sur Bus Station
      5:45 PM
      Mendoza
      Bus Station
      0
      Nevada Internacional
      Premium Economy
      $37
      • Waiting Time 1h 15m
    • CATA Internacional
      13h 39m
      0
      7:00 PM
      Mendoza
      Bus Station
      8:39 AM
      Buenos Aires
      Villa Tesei
      0
      CATA Internacional
      Premium Economy
      $34
    Travel time is 3h 4m longer, but you will save $22

Cheapest bus trips Monday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
CATA Internacional 23h 30m 9:00 AM Santiago, RM Los Héroes Station 8:30 AM Buenos Aires Retiro Bus Station  Premium Economy $93
  • Did you know that if you travel from Santiago, RM to Buenos Aires via Mendoza, you can save more than $22? You can find the corresponding connections below.
    • Nevada Internacional
      22h 54m
      0
      9:45 AM
      Santiago, RM
      Sur Bus Station
      5:45 PM
      Mendoza
      Bus Station
      0
      Nevada Internacional
      Premium Economy
      $37
      • Waiting Time 1h 15m
    • CATA Internacional
      13h 39m
      0
      7:00 PM
      Mendoza
      Bus Station
      8:39 AM
      Buenos Aires
      Villa Tesei
      0
      CATA Internacional
      Premium Economy
      $34
    Travel Time is 0h 36m shorter, and you will save $22

Test cheapest views

The cheapest bus for the 9/15/2026 costs just $74, from CATA Internacional

Facts about the bus from Santiago, RM to Buenos Aires

Compare all providers like CATA Internacional and Buses Pullman Fénix Internacional that travel 10 times every day by bus from Santiago, RM to Buenos Aires in one click! Book your bus ticket from Santiago, RM to Buenos Aires starting from $74!

Cheapest Bus $74
Fastest Bus 19h 0m
Earliest Bus 9:00 AM
Latest Bus 9:00 AM
Daily Bus Routes 10 Ø
Distance 707.1 miles
Bus Companies CATA Internacional and Buses Pullman Fénix Internacional

Cheapest bus connections from Santiago, RM to Buenos Aires

Every day, 10 buses from 2 bus companies leave Santiago, RM for Buenos Aires: in the table below, you will find the cheapest prices for a bus ticket for this route, starting from 09/08/2026 and for the following days.

Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday 09/06
Monday 09/07
Tuesday 09/08
Wednesday 09/09
$93
Thursday 09/10
$93
Friday 09/11
$93
Saturday 09/12
$98
Sunday 09/13
Monday 09/14
$98
Tuesday 09/15
$74
Wednesday 09/16
$93
Thursday 09/17
$93
Friday 09/18
$93
Saturday 09/19
$93
Sunday 09/20
Monday 09/21
$93
Tuesday 09/22
Wednesday 09/23
Thursday 09/24
$98
Friday 09/25
$93
Saturday 09/26
Sunday 09/27
$98
Monday 09/28
Tuesday 09/29
Wednesday 09/30
$93
Thursday 10/01
$100
Friday 10/02
Saturday 10/03

How to save money travelling from Santiago, RM to Buenos Aires

Travel can be expensive, but it doesn't need to be! Do you want to avoid paying a terrible price for your trip? Then follow these quick steps to save money:

Book the ticket from Santiago, RM to Buenos Aires in advance! The earlier you book, the cheaper usually the price is. Also, you will be sure to have a place on the bus from Santiago, RM to Buenos Aires, compared instead if you buy it at the last moment, or directly at the station.

If you can, avoid travelling at peak times. Instead of weekend, try travelling during the week. Travelling in the evening or at night it’s also cheaper, and later buses from Santiago, RM to Buenos Aires are also emptier.

Beloved bus companies from Santiago, RM to Buenos Aires

These are the most booked bus companies between Santiago, RM to Buenos Aires from our users.

CATA Internacional from Santiago, RM to Buenos Aires

CATA Internacional

Here you will find the key facts about the CATA Internacional bus route Santiago, RM to Buenos Aires:

Cheapest Price $93
Fastest Bus 19h 50m
Earliest Bus 9:00 AM
Last Bus 9:00 AM
Daily Connections 10 Ø
Found on 9/6/2026

Latest reviews for bus companies on the route Santiago, RM - Buenos Aires

CATA Internacional
Florencia, 11/25/2025
Viaje super incomoda , apagaron el aire acondicionado en un momento , no dan servicio a bordo, subieron equipaje a asientos vacios, arriba la parte que tienen para dejar el equipaje de mano por el esp ... Viaje super incomoda , apagaron el aire acondicionado en un momento , no dan servicio a bordo, subieron equipaje a asientos vacios, arriba la parte que tienen para dejar el equipaje de mano por el espacio que tiene no entra nada. Te piden propina todo el rato. Viaje hace unos meses con otra empresa que hacia el mismo recorrido y viaje muy comoda. Fueron muy amables los de andesmar. Los de cata me hicieron pasar un viaje desagradable.

All bus stations and stops in Santiago, RM and Buenos Aires

In the map below, you can see where to find all bus stations in Santiago, RM and Buenos Aires.

Service and Comfort on the bus from Santiago, RM to Buenos Aires

Want to know which seat classes are available on the buses from Santiago, RM to Buenos Aires? Or which bus companies serve the route Santiago, RM to Buenos Aires? Below you will find answers to your questions.

FAQs about the Santiago, RM to Buenos Aires bus

How much does a Santiago, RM Buenos Aires bus trip cost?

This depends on, among other things, the day and time of travel. The cheapest trip is available from $74 and takes 23h 30m to reach Buenos Aires. Compare offers to save money!

How much could I save by comparing buses from Santiago, RM to Buenos Aires?

This route is offered by 2 companies with a range of ticket prices between $74 and $124. Thus, we recommend booking your ticket as early as possible to make sure you get the cheapest bus ticket to Buenos Aires.

On average, how many connections are available from Santiago, RM to Buenos Aires each day?

Every day, the Santiago, RM to Buenos Aires bus route is served by approximately 10 connections. With our search, you can compare bus times to find the perfect trip.

How long does a bus journey from Santiago, RM to Buenos Aires take?

The fastest bus from Santiago, RM to Buenos Aires is offered by Buses Pullman Fénix Internacional and takes 19h 0m. Bus tickets for this connection cost $123. In this context, bear in mind that the journey can take longer due to traffic.

What time is the first bus from Santiago, RM to Buenos Aires?

The earliest bus arriving in Buenos Aires from Santiago, RM starts at 9:00 AM. However, information regarding departure times may differ on weekends and holidays. Simply use our search to find exact times for your planned travel date.

What time is the last bus from Santiago, RM to Buenos Aires?

The latest bus trip departing from Santiago, RM for Buenos Aires starts at 9:00 AM. Please note that departure times may differ on weekends and holidays. So just use our search to find the exact times for your planned travel date.

Which bus companies operate the Santiago, RM Buenos Aires route?

When traveling by bus from Santiago, RM to Buenos Aires, passengers can travel with CATA Internacional and Buses Pullman Fénix Internacional. With our search, you can compare all available bus tickets to book the one that works for you.

Is there a direct bus between Santiago, RM and Buenos Aires?

You can check all the direct connections between Santiago, RM and Buenos Aires by using our search and looking at the Changes section in our filters. These are some of the companies which offer a direct bus: CATA Internacional and Buses Pullman Fénix Internacional.

What can I take with me on the Santiago, RM to Buenos Aires bus route?

Depending on which provider you travel with, what you're allowed to bring with you can vary. Generally, you can take a suitcase and hand luggage with you on the Santiago, RM Buenos Aires bus route free of charge. Simply use our search to find a bus that is best suited to your needs for your planned travel date.

What equipment is available for the Santiago, RM Buenos Aires bus route?

The equipment on board differs depending on the provider. However, many long-distance buses have WiFi so you can tell your friends your exact location during the journey. To make traveling even more pleasant, air conditioning systems provide ventilation. It is best to use our search to get precise information about the equipment of the bus from Santiago, RM to Buenos Aires on your planned travel date.

Available seat classes which are offered on the bus route Santiago, RM to Buenos Aires

Premium Economy
PremiumEconomy

A mix between Economy and Business, it offers extra legroom, WI-FI and possible snacks.

First Class
First

Best of the best: you will find the most comfortable accommodation to work or relax during your travel.

More bus routes to Santiago, RM and to Buenos Aires

Here’s an overview of the most popular bus routes to Santiago, RM and to Buenos Aires. Simply click on the connection of your choice, and you will find all the details about your bus route!
Buses Molina to Santiago, RM Buses Molina to Santiago, RM
Buses Curanilahue - Santiago, RM Buses Curanilahue - Santiago, RM
Buses Cauquenes - Santiago, RM Buses Cauquenes - Santiago, RM
Buses Vallenar to Santiago, RM Buses Vallenar to Santiago, RM
Bus Rafaela, SF - Buenos Aires Bus Rafaela, SF - Buenos Aires
Buses from Olavarría to Buenos Aires Buses from Olavarría to Buenos Aires
From Reconquista to Buenos Aires bus From Reconquista to Buenos Aires bus
Bus from Santiago del Estero to Buenos Aires Bus from Santiago del Estero to Buenos Aires
Popular Airport Shuttles to Santiago, RM and to Buenos Aires
CheckMyBus › Buses in Chile › Bus to Santiago, RM › Bus to Buenos Aires

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