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Cheap flights from Santiago to Buenos Aires from £40

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
SCL — BUE
16 Nov — 23 Nov1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Santiago Arturo Merino Benitez to Buenos Aires are usually found in May or June, booked 63 days in advance, depart on a Monday or Wednesday and return on a Monday

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Cheapest flights from Santiago to Buenos Aires
Explore the most affordable flight options available from Santiago to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 October 2025.

Fri 28/1120:30SCL - AEP
1 stop26h 15mJetSMART
Sun 7/1205:35AEP - SCL
Nonstop2h 24mJetSMART
Deal found 16/10£118
Fri 21/1112:35SCL - EZE
Nonstop2h 00mKLM
Sun 23/1108:55EZE - SCL
Nonstop2h 10mKLM
Deal found 15/10£135
Fri 17/1010:55SCL - EZE
Nonstop1h 55mKLM
Fri 24/1007:10EZE - SCL
Nonstop2h 15mKLM
Deal found 16/10£136
Sat 18/1010:55SCL - EZE
Nonstop1h 55mKLM
Sun 19/1007:10EZE - SCL
Nonstop2h 15mKLM
Deal found 17/10£136
Thu 16/1010:55SCL - EZE
Nonstop1h 55mKLM
Thu 23/1007:10EZE - SCL
Nonstop2h 15mKLM
Deal found 15/10£137
Sun 30/1112:35SCL - EZE
Nonstop2h 00mKLM
Sun 7/1208:55EZE - SCL
Nonstop2h 10mKLM
Deal found 16/10£138
Sun 30/1112:35SCL - EZE
Nonstop2h 00mKLM
Sat 6/1208:55EZE - SCL
Nonstop2h 10mKLM
Deal found 16/10£138
Sun 30/1112:35SCL - EZE
Nonstop2h 00mKLM
Tue 2/1208:55EZE - SCL
Nonstop2h 10mKLM
Deal found 15/10£139
Sun 14/1216:15SCL - AEP
Nonstop2h 05mJetSMART
Mon 22/1212:50AEP - SCL
Nonstop2h 24mJetSMART
Deal found 16/10£139
Thu 13/1112:10SCL - EZE
Nonstop2h 00mKLM
Mon 17/1108:55EZE - SCL
Nonstop2h 10mKLM
Deal found 16/10£140
Fri 28/1116:35SCL - AEP
Nonstop2h 05mJetSMART
Mon 1/1205:45AEP - SCL
Nonstop2h 24mJetSMART
Deal found 17/10£140
Wed 15/1010:40SCL - EZE
Nonstop1h 55mKLM
Tue 23/1208:55EZE - SCL
Nonstop2h 10mKLM
Deal found 15/10£141

Cheap flight deals from Santiago to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from Santiago (SCL) to Buenos Aires (BUE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 17 October 2025.

Round-trip from

£118

One-way from

£40

Popular in

September

Cheapest in

May

Average price

£139

Good one-way deal

£62 or less
JetSMART
  • JetSMART
  • 28/11-7/12
  • 1 total stop
  • 28h 39m total
  • Santiago to Buenos Aires
Search Deals
JetSMART
  • JetSMART
  • 9/12
  • Nonstop
  • 2h 05m total
  • Santiago to Buenos Aires
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£6 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£2 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a one-way flight from Santiago Arturo Merino Benitez to Buenos Aires (BUE).
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Santiago to Buenos Aires that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 17 October 2025.
Use the filters below to find and compare flights from Santiago to Buenos Aires that are best for you.

Fly from

Santiago

Fly to

Buenos Aires

Route

Depart

Return

Price

SantiagoBuenos Aires

SCL - EZE

SCLEZE

Santiago Arturo Merino Benitez

Tue 28/10

12:35-14:35

Nonstop2h 00m

Buenos Aires Ministro Pistarini

Fri 31/10

08:55-11:05

Nonstop2h 10m

£135

SantiagoBuenos Aires

SCL - EZE

SCLEZE

Santiago Arturo Merino Benitez

Fri 21/11

12:35-14:35

Nonstop2h 00m

Buenos Aires Ministro Pistarini

Sun 23/11

08:55-11:05

Nonstop2h 10m

£135

SantiagoBuenos Aires

SCL - EZE

SCLEZE

Santiago Arturo Merino Benitez

Tue 18/11

12:35-14:35

Nonstop2h 00m

Buenos Aires Ministro Pistarini

Wed 19/11

08:55-11:05

Nonstop2h 10m

£135

SantiagoBuenos Aires

SCL - EZE

SCLEZE

Santiago Arturo Merino Benitez

Mon 8/12

12:35-14:35

Nonstop2h 00m

Buenos Aires Ministro Pistarini

Thu 11/12

08:55-11:05

Nonstop2h 10m

£135

SantiagoBuenos Aires

SCL - EZE

SCLEZE

Santiago Arturo Merino Benitez

Wed 17/12

12:35-14:35

Nonstop2h 00m

Buenos Aires Ministro Pistarini

Sun 21/12

08:55-11:05

Nonstop2h 10m

£135

SantiagoBuenos Aires

SCL - EZE

SCLEZE

Santiago Arturo Merino Benitez

Thu 20/11

12:10-14:10

Nonstop2h 00m

Buenos Aires Ministro Pistarini

Mon 24/11

08:55-11:05

Nonstop2h 10m

£135

SantiagoBuenos Aires

SCL - EZE

SCLEZE

Santiago Arturo Merino Benitez

Mon 10/11

12:35-14:35

Nonstop2h 00m

Buenos Aires Ministro Pistarini

Thu 13/11

08:30-10:40

Nonstop2h 10m

£136

SantiagoBuenos Aires

SCL - EZE

SCLEZE

Santiago Arturo Merino Benitez

Tue 4/11

12:35-14:35

Nonstop2h 00m

Buenos Aires Ministro Pistarini

Thu 6/11

08:55-11:05

Nonstop2h 10m

£136

SantiagoBuenos Aires

SCL - EZE

SCLEZE

Santiago Arturo Merino Benitez

Mon 17/11

12:35-14:35

Nonstop2h 00m

Buenos Aires Ministro Pistarini

Wed 26/11

08:55-11:05

Nonstop2h 10m

£136

SantiagoBuenos Aires

SCL - EZE

SCLEZE

Santiago Arturo Merino Benitez

Sun 16/11

12:35-14:35

Nonstop2h 00m

Buenos Aires Ministro Pistarini

Wed 19/11

08:55-11:05

Nonstop2h 10m

£136

Flights are sorted by cheapest return flights first.

Deals found on 17/10

Showing 1-10 of 45 results
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Best time to book a flight from Santiago to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Santiago with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Santiago to Buenos Aires

How far ahead should I book a flight from Santiago to Buenos Aires?

Use this chart to determine the optimal time to book a return flight from Santiago to Buenos Aires. Price data was last updated on 10 October 2025.

To ensure you get the cheapest price possible for a flight from Santiago to Buenos Aires, you should look to book at least 63 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Santiago to Buenos Aires?

Currently, March is the cheapest month in which you can book a flight from Santiago to Buenos Aires (average of £39). Flying from Santiago to Buenos Aires in September is currently the most expensive (average of £60). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SCL to BUE?

Find hourly flight availability from Santiago to Buenos Aires. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 October 2025.

It’s optimal to fly from Santiago to Buenos Aires in the evening. By choosing this option you can save up to 45% on the cost of your flight, compared to a flight in the morning.

Weekly flight availability from Santiago to Buenos Aires

Explore weekly flight availability from Santiago to Buenos Aires. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 17 October 2025.

The most flights from SCL to BUE are scheduled on a Wednesday (21 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 on average).

How much does it cost for a return flight from Santiago to Buenos Aires?

Related info for your journey

Find useful and relevant information for your journey from Santiago to Buenos Aires. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Santiago to Buenos Aires?

    Most people fly from Santiago Arturo Merino Benitez (SCL) if they book a flight from Santiago to Buenos Aires. On average, Arturo Merino Benitez has 13 outbound flights to Buenos Aires per day from 0 airlines. Santiago Arturo Merino Benitez is conveniently located just 8.4 mi from Santiago’s city center.

  • How long is the flight from Santiago to Buenos Aires?

    For as low as £135, KLM can have you in Buenos Aires from Santiago in 2h. Santiago and Buenos Aires are separated by a distance of 707 mi. All flights are typically direct.

  • What are the cheapest airlines to fly from Santiago to Buenos Aires one-way?

    The cheapest airline one-way is JetSMART, with whom users have recently found tickets for as low as £40. However, be on the lookout for offers from Sky Airline and KLM, as they are both options that can get you from Santiago to Buenos Aires for a low price.

  • What are the most reliable airlines from Santiago to Buenos Aires?

    Before booking your flight to Buenos Aires from Santiago, check out the most reliable airlines to get you to your destination on time: JetSMART (100%), Sky Airlines Peru (94%), LATAM Airlines( 89%).

  • Can I find deals for flights from Santiago to Buenos Aires that include hotel bookings?

    Yes. In addition to deals on Santiago to Buenos Aires flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Santiago to Buenos Aires?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Santiago to Buenos Aires.

  • Can I find deals for business class flights from Santiago to Buenos Aires?

    Yes. Cheapflights offers flight deals from Santiago to Buenos Aires by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Santiago to Buenos Aires?

    Currently, March is the cheapest month in which you can book a flight from Santiago to Buenos Aires (average of £39). Flying from Santiago to Buenos Aires in September is currently the most expensive (average of £60). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Santiago to Buenos Aires

See prices for flight routes from nearby airports that may be better suited for you.
Santiago to Jorge Newbery flights
Santiago to Ministro Pistarini flights

Fly with Cheapflights

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Why should you use Cheapflights to find cheap flight tickets from Santiago to Buenos Aires?

Cheapflights helps you find that perfect flight to Buenos Aires from Santiago by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Santiago to Buenos Aires with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Santiago to Buenos Aires flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Santiago to Buenos Aires become cheaper?

Yes, Cheapflights offers price alerts on Santiago to Buenos Aires flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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