Bus from Santiago, RM to Buenos Aires from $101

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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 for the next days.

today
$101
tomorrow
$101
Saturday
$101
Sunday
Monday
$101
Tuesday
Wednesday
$101

Cheapest bus trips today

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
CATA Internacional 22h 30m 9:00 AM Santiago, RM Sur Bus Station 8:30 AM Buenos Aires Retiro Bus Station  Premium Economy $101
CATA Internacional 18h 50m 9:00 AM Santiago, RM Sur Bus Station 4:50 AM Buenos Aires Liniers Bus Station  Premium Economy $101
  • Did you know that if you travel from Santiago, RM to Buenos Aires via Mendoza, you can save more than $25? You can find the corresponding connections below.
    • Coitram
      22h 5m
      0
      7:45 AM
      Santiago, RM
      Los Héroes Station
      3:45 PM
      Mendoza
      Bus Station
      0
      Coitram
      Basic
      $25
      • Waiting Time 2h 0m
    • Central Argentino
      13h 5m
      0
      5:45 PM
      Mendoza
      Bus Station
      6:50 AM
      Buenos Aires
      Villa Tesei
      0
      Central Argentino
      Premium Economy
      $50
    Travel time is 2h 15m longer, but you will save $25

Cheapest bus trips tomorrow

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
CATA Internacional 22h 30m 9:00 AM Santiago, RM Los Héroes Station 8:30 AM Buenos Aires Retiro Bus Station  Premium Economy $101
CATA Internacional 18h 50m 9:00 AM Santiago, RM Sur Bus Station 4:50 AM Buenos Aires Liniers Bus Station  Premium Economy $101
  • Did you know that if you travel from Santiago, RM to Buenos Aires via Mendoza, you can save more than $25? You can find the corresponding connections below.
    • Coitram
      22h 5m
      0
      7:45 AM
      Santiago, RM
      Los Héroes Station
      3:45 PM
      Mendoza
      Bus Station
      0
      Coitram
      Basic
      $25
      • Waiting Time 2h 0m
    • Central Argentino
      13h 5m
      0
      5:45 PM
      Mendoza
      Bus Station
      6:50 AM
      Buenos Aires
      Villa Tesei
      0
      Central Argentino
      Premium Economy
      $50
    Travel time is 2h 15m longer, but you will save $25

Cheapest bus trips Saturday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
CATA Internacional 22h 30m 9:00 AM Santiago, RM Sur Bus Station 8:30 AM Buenos Aires Retiro Bus Station  Premium Economy $101
CATA Internacional 18h 50m 9:00 AM Santiago, RM Sur Bus Station 4:50 AM Buenos Aires Liniers Bus Station  Premium Economy $101
  • Did you know that if you travel from Santiago, RM to Buenos Aires via Mendoza, you can save more than $25? You can find the corresponding connections below.
    • Coitram
      22h 5m
      0
      7:45 AM
      Santiago, RM
      Los Héroes Station
      3:45 PM
      Mendoza
      Bus Station
      0
      Coitram
      Basic
      $25
      • Waiting Time 2h 0m
    • Central Argentino
      13h 5m
      0
      5:45 PM
      Mendoza
      Bus Station
      6:50 AM
      Buenos Aires
      Villa Tesei
      0
      Central Argentino
      Premium Economy
      $50
    Travel time is 2h 15m longer, but you will save $25

Cheapest bus trips Monday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
CATA Internacional 22h 30m 9:00 AM Santiago, RM Los Héroes Station 8:30 AM Buenos Aires Retiro Bus Station  Premium Economy $101
CATA Internacional 18h 50m 9:00 AM Santiago, RM Sur Bus Station 4:50 AM Buenos Aires Liniers Bus Station  Premium Economy $101
  • Did you know that if you travel from Santiago, RM to Buenos Aires via Mendoza, you can save more than $27? You can find the corresponding connections below.
    • Coitram
      21h 50m
      0
      7:45 AM
      Santiago, RM
      Los Héroes Station
      3:45 PM
      Mendoza
      Bus Station
      0
      Coitram
      Basic
      $25
      • Waiting Time 1h 15m
    • 20 de Junio
      13h 35m
      0
      5:00 PM
      Mendoza
      Bus Station
      6:35 AM
      Buenos Aires
      Liniers Bus Station
      0
      20 de Junio
      Premium Economy
      $49
    Travel time is 2h 0m longer, but you will save $27

Cheapest bus trips Wednesday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
CATA Internacional 22h 30m 9:00 AM Santiago, RM Sur Bus Station 8:30 AM Buenos Aires Retiro Bus Station  Premium Economy $101
CATA Internacional 18h 50m 9:00 AM Santiago, RM Sur Bus Station 4:50 AM Buenos Aires Liniers Bus Station  Premium Economy $101
  • Did you know that if you travel from Santiago, RM to Buenos Aires via Mendoza, you can save more than $27? You can find the corresponding connections below.
    • Coitram
      21h 50m
      0
      7:45 AM
      Santiago, RM
      Los Héroes Station
      3:45 PM
      Mendoza
      Bus Station
      0
      Coitram
      Basic
      $25
      • Waiting Time 1h 15m
    • 20 de Junio
      13h 35m
      0
      5:00 PM
      Mendoza
      Bus Station
      6:35 AM
      Buenos Aires
      Liniers Bus Station
      0
      20 de Junio
      Premium Economy
      $49
    Travel time is 2h 0m longer, but you will save $27

Best Price Offer: The price for the cheapest bus from Santiago, RM to Buenos Aires is $101 on 5/4/2026. Flexible travelers save on ticket prices.


Facts about the bus from Santiago, RM to Buenos Aires

Compare all providers like CATA Internacional that travel 13 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 $101!

Cheapest Bus $101
Fastest Bus 19h 50m
Earliest Bus 9:00 AM
Latest Bus 9:00 AM
Daily Bus Routes 13 Ø
Distance 707.1 miles
Bus Companies CATA Internacional

Cheapest bus connections from Santiago, RM to Buenos Aires

Every day, 13 buses from 1 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 05/07/2026 and for the following days.

Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday 05/03
Monday 05/04
Tuesday 05/05
Wednesday 05/06
Thursday 05/07
$101
Friday 05/08
$128
Saturday 05/09
$109
Sunday 05/10
Monday 05/11
$112
Tuesday 05/12
Wednesday 05/13
$101
Thursday 05/14
$112
Friday 05/15
$101
Saturday 05/16
$112
Sunday 05/17
Monday 05/18
$101
Tuesday 05/19
Wednesday 05/20
$101
Thursday 05/21
$101
Friday 05/22
$101
Saturday 05/23
$101
Sunday 05/24
Monday 05/25
$101
Tuesday 05/26
Wednesday 05/27
$101
Thursday 05/28
$112
Friday 05/29
$101
Saturday 05/30

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 $101
Fastest Bus 19h 50m
Earliest Bus 9:00 AM
Last Bus 9:00 AM
Daily Connections 13 Ø
Found on 5/7/2026

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 $101 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 1 companies with a range of ticket prices between $101 and $138. 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 13 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 CATA Internacional and takes 19h 50m. Bus tickets for this connection cost $115. 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. 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.

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.

How does CheckMyBus find the best bus deals from Santiago, RM to Buenos Aires?

CheckMyBus collaborates directly with companies around the world to provide you with the best options when searching for a trip. We retrieve their first-hand data to show you real-time prices, schedules, and seat availability for 13 daily trips between Santiago, RM and Buenos Aires. With the most up-to-date information from verified sources, you can fairly compare all available options and choose the trip that suits you best.

How does CheckMyBus technology work for trips from Santiago, RM to Buenos Aires?

Prices and availability for 13 trips between Santiago, RM and Buenos Aires change constantly. To provide you with the most up-to-date information, we connect directly with bus operators, Online Travel Agencies (OTAs), and Global Distribution Systems (GDS) via real-time interfaces (APIs). The data collected from these sources undergoes strict quality checks, is processed within our infrastructure, and is then presented to you on our search results pages. Visit our About Us page to learn more.

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.

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 Lota to Santiago, RM Buses Lota to Santiago, RM
Buses from Graneros to Santiago, RM Buses from Graneros to Santiago, RM
Buses Concepción - Santiago, RM Buses Concepción - Santiago, RM
Bus to Santiago, RM from Pichicuy Bus to Santiago, RM from Pichicuy
Buses from Olavarría to Buenos Aires Buses from Olavarría to Buenos Aires
Santa Rosa (PY) to Buenos Aires bus Santa Rosa (PY) to Buenos Aires bus
Bus Leandro N. Alem - Buenos Aires Bus Leandro N. Alem - Buenos Aires
Buses to Buenos Aires from Ciudad del Este, PY Buses to Buenos Aires from Ciudad del Este, PY
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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