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$322+ Cheap flights from Mexico City (MEX) to Buenos Aires (BUE)

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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
MEX — BUE
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Mexico City Benito Juarez to Buenos Aires are usually found in September or May, booked 90 days in advance, depart on a Monday or Friday and return on a Thursday

Cheap flight deals from Mexico City to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from Mexico City (MEX) 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 September 11, 2025.

Round-trip from

$650
(Kiwi.com)

One-way from

$322
(Priceline)

Popular in

December

Cheapest in

September

Average price

$737

Good round-trip deal

$864 or less

Good one-way deal

$381 or less
From Mexico City Benito Juarez to Buenos Aires (BUE)
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One-way flight from Mexico City Benito Juarez to Buenos Aires (BUE)
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Highest demand for flights based on searches. 8% potential increase in price ($80 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Mexico City Benito Juarez to Buenos Aires (BUE).
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Price to beat on a one-way flight from Mexico City Benito Juarez to Buenos Aires (BUE).
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Find flight deals from Mexico City to Buenos Aires

Cheapest flights from Mexico City to Buenos Aires
Explore the most affordable flight options available from Mexico City to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1011:15 pmMEX - EZE
1 stop13h 35mAvianca
Sun 11/167:35 amEZE - MEX
1 stop13h 35mAvianca
Deal found 9/10$650
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1011:15 pmMEX - EZE
1 stop13h 35mAvianca
Mon 11/177:35 amEZE - MEX
1 stop13h 35mAvianca
Deal found 9/10$651
This Priceline deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1012:40 amMEX - EZE
1 stop12h 10mAvianca
Tue 11/184:55 pmEZE - MEX
1 stop13h 05mAvianca
Deal found 9/11$656
This Booking.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/264:00 pmMEX - EZE
1 stop31h 50mLATAM Airlines
Tue 10/287:43 pmEZE - MEX
1 stop22h 07mLATAM Airlines
Deal found 9/10$657
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/3012:40 amMEX - EZE
1 stop12h 10mAvianca
Thu 12/117:35 amEZE - MEX
1 stop13h 35mAvianca
Deal found 9/9$662
This Gotogate deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2612:55 pmMEX - EZE
2 stops13h 15mAvianca
Sat 11/84:55 pmEZE - MEX
1 stop22h 15mAvianca
Deal found 9/10$664
This Avianca deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1912:40 amMEX - EZE
1 stop12h 10mAvianca
Sat 12/67:35 amEZE - MEX
1 stop13h 35mAvianca
Deal found 9/11$667
This LATAM Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/17:50 pmMEX - AEP
1 stop15h 50mLATAM Airlines
Sat 11/810:30 pmAEP - MEX
1 stop19h 25mLATAM Airlines
Deal found 9/10$667
This LATAM Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/117:50 pmMEX - EZE
1 stop22h 05mLATAM Airlines
Wed 11/199:55 pmEZE - MEX
1 stop20h 20mLATAM Airlines
Deal found 9/10$668
This LATAM Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/107:50 pmMEX - AEP
1 stop11h 40mLATAM Airlines
Fri 11/2111:30 amAEP - MEX
2 stops29h 20mLATAM Airlines
Deal found 9/10$668
This LATAM Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/17:50 pmMEX - EZE
1 stop19h 53mLATAM Airlines
Wed 12/104:05 amEZE - MEX
1 stop12h 45mLATAM Airlines
Deal found 9/9$673
This LATAM Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/267:50 pmMEX - AEP
1 stop20h 50mLATAM Airlines
Sun 11/28:25 pmAEP - MEX
1 stop20h 25mLATAM Airlines
Deal found 9/11$673

Cheapflights Fare Finder

 
Customize your flight search to find flights from Mexico City 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 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Mexico City to Buenos Aires that are best for you.

Fly from

Mexico City

Fly to

Buenos Aires

Route

Depart

Return

Price

Mexico CityBuenos Aires

MEX - EZE

MEXEZE

Mexico City Benito Juarez

Wed 11/19

12:40 am-3:50 pm

1 stop12h 10m

Buenos Aires Ministro Pistarini

Sat 12/6

7:35 am-6:10 pm

1 stop13h 35m

$667

Mexico CityBuenos Aires

MEX - AEP

MEXAEP

Mexico City Benito Juarez

Mon 11/10

7:50 pm-10:30 am

1 stop11h 40m

Buenos Aires Jorge Newbery

Fri 11/21

11:30 am-1:50 pm

2 stops29h 20m

$668

Mexico CityBuenos Aires

MEX - AEP

MEXAEP

Mexico City Benito Juarez

Mon 12/1

6:55 pm-6:40 pm

2 stops20h 45m

Buenos Aires Jorge Newbery

Thu 12/11

6:20 pm-3:15 pm

1 stop23h 55m

$668

Mexico CityBuenos Aires

MEX - AEP

MEXAEP

Mexico City Benito Juarez

Mon 11/10

7:50 pm-7:40 pm

1 stop20h 50m

Buenos Aires Jorge Newbery

Thu 11/20

5:15 pm-1:50 pm

1 stop23h 35m

$668

Mexico CityBuenos Aires

MEX - AEP

MEXAEP

Mexico City Benito Juarez

Tue 11/11

7:50 pm-10:30 am

1 stop11h 40m

Buenos Aires Jorge Newbery

Wed 11/19

6:20 pm-3:15 pm

1 stop23h 55m

$668

Mexico CityBuenos Aires

MEX - AEP

MEXAEP

Mexico City Benito Juarez

Mon 11/10

7:50 pm-7:40 pm

1 stop20h 50m

Buenos Aires Jorge Newbery

Wed 11/19

6:20 pm-3:15 pm

1 stop23h 55m

$668

Mexico CityBuenos Aires

MEX - AEP

MEXAEP

Mexico City Benito Juarez

Sun 10/26

5:15 pm-2:00 pm

1 stop17h 45m

Buenos Aires Jorge Newbery

Sat 11/8

10:30 pm-1:50 pm

2 stops18h 20m

$668

Mexico CityBuenos Aires

MEX - AEP

MEXAEP

Mexico City Benito Juarez

Thu 11/13

5:15 pm-2:00 pm

1 stop17h 45m

Buenos Aires Jorge Newbery

Fri 11/21

8:25 pm-1:50 pm

1 stop20h 25m

$719

Mexico CityBuenos Aires

MEX - EZE

MEXEZE

Mexico City Benito Juarez

Tue 10/7

11:20 pm-12:10 am

1 stop21h 50m

Buenos Aires Ministro Pistarini

Tue 10/14

6:50 am-11:00 pm

1 stop19h 10m

$752

Mexico CityBuenos Aires

MEX - AEP

MEXAEP

Mexico City Benito Juarez

Wed 1/14

7:50 pm-7:40 pm

1 stop20h 50m

Buenos Aires Jorge Newbery

Wed 1/21

3:40 pm-2:55 pm

1 stop26h 15m

$757

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 42 results
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Best time to book a flight from Mexico City to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Mexico City with our price prediction graph.
Estimated round-trip 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 Mexico City to Buenos Aires

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

Use this chart to determine the optimal time to book a round-trip flight from Mexico City to Buenos Aires. Price data was last updated on August 29, 2025.

To ensure you get the cheapest price possible for a flight from Mexico City to Buenos Aires, you should look to book at least 90 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 Mexico City to Buenos Aires?

Currently, April is the cheapest month in which you can book a flight from Mexico City to Buenos Aires (average of $795). Flying from Mexico City to Buenos Aires in December is currently the most expensive (average of $1,260). 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 MEX to BUE?

Find hourly flight availability from Mexico City 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 September 11, 2025.

When flying from Mexico City to Buenos Aires, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 13% versus a flight in the morning.

What is the cheapest day to fly from Mexico City to Buenos Aires?

Use this chart to determine the cheapest time to fly round-trip from Mexico City to Buenos Aires. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Mexico City to Buenos Aires flight should consider departing on Sunday at noon when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Mexico City to Buenos Aires?

Reviews of airlines servicing Buenos Aires

Get insights into the airlines that provide service to Buenos Aires. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Buenos Aires. Reviews last updated September 11, 2025.
See what other customers who have flown with Copa Airlines, LATAM Airlines, and Aeromexico from Mexico City to Buenos Aires have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Copa Airlines
7.6
Good
1,531 reviews

Entertainment

6.8

Food

6.8

Boarding

7.8

Comfort

7.4

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Juan Pablo,Sep 2025

MEX - PTY

never better, had a very plesent trip to panama, cant say the same thing of my trip, from panama to santa cruz... it was very poor, unconftrable and boring
Copa Airlines
7.6
Good
1,531 reviews
Copa Airlines
7.6
Good
1,531 reviews

Entertainment

6.8

Food

6.8

Boarding

7.8

Comfort

7.4

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Juan Pablo,Sep 2025

MEX - PTY

never better, had a very plesent trip to panama, cant say the same thing of my trip, from panama to santa cruz... it was very poor, unconftrable and boring
LATAM Airlines
7.5
Good
1,847 reviews
Copa Airlines
7.6
Good
1,531 reviews

Entertainment

6.8

Food

6.8

Boarding

7.8

Comfort

7.4

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Juan Pablo,Sep 2025

MEX - PTY

never better, had a very plesent trip to panama, cant say the same thing of my trip, from panama to santa cruz... it was very poor, unconftrable and boring
Aeromexico
7.5
Good
1,701 reviews
Copa Airlines
7.6
Good
1,531 reviews

Entertainment

6.8

Food

6.8

Boarding

7.8

Comfort

7.4

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Juan Pablo,Sep 2025

MEX - PTY

never better, had a very plesent trip to panama, cant say the same thing of my trip, from panama to santa cruz... it was very poor, unconftrable and boring
Avianca
6.7
Okay
2,436 reviews
Copa Airlines
7.6
Good
1,531 reviews

Entertainment

6.8

Food

6.8

Boarding

7.8

Comfort

7.4

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Juan Pablo,Sep 2025

MEX - PTY

never better, had a very plesent trip to panama, cant say the same thing of my trip, from panama to santa cruz... it was very poor, unconftrable and boring

Related info for your journey

Find useful and relevant information for your journey from Mexico City 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 Mexico City to Buenos Aires?

    Located just 5.5 mi from the city center, Mexico City Benito Juarez is the airport most travelers will use when flying to Buenos Aires from Mexico City. Booking flights from Benito Juarez (MEX) to Buenos Aires should be relatively easy as there is 1 daily outbound flight to Buenos Aires from 4 different airlines.

  • How long is the flight from Mexico City to Buenos Aires?

    Avianca, LATAM Airlines, and Copa Airlines can get you from Mexico City to Buenos Aires in just under 11h 40m. Your travel time can differ by up to 6h 31m. The distance between Mexico City and Buenos Aires is about 4584 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Mexico City to Buenos Aires round-trip?

    Currently priced at $524, Avianca will fly you from Mexico City to Buenos Aires and back. In addition to Avianca, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from LATAM Airlines and Copa Airlines - these airlines can fly you to your destination from $622 and $683, respectively. Avianca is currently priced 37% below the average price you’ll pay for this route.

  • What are the cheapest flights from Mexico City to Buenos Aires?

    On average you can expect to pay $799 for a flight from Mexico City to Buenos Aires. The cheapest flight overall is $381 while the most popular route, (Mexico City Benito Juarez - Buenos Aires Ministro Pistarini) is currently priced at $657.

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

    Yes. In addition to deals on Mexico City to Buenos Aires flights, Cheapflights offers vacation packages that include both flights and hotel.

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

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

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

    Yes. Cheapflights offers flight deals from Mexico City 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 Mexico City to Buenos Aires?

    Currently, April is the cheapest month in which you can book a flight from Mexico City to Buenos Aires (average of $795). Flying from Mexico City to Buenos Aires in December is currently the most expensive (average of $1,260). 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 Mexico City to Buenos Aires

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

Top 4 airlines flying from Mexico City to Buenos Aires

Discover the top 4 airlines that operate flights from Mexico City to Buenos Aires. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$524Average$860FlexibilityNo cancel feeOn-time71%
LATAM AirlinesCheapest$622Average$810FlexibilityNo cancel feeOn-time81%
Copa AirlinesCheapest$683Average$1,236FlexibilityNo cancel feeOn-time70%
AeromexicoCheapest$737Average$1,051FlexibilityNo cancel feeOn-timeN/A

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