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$327+ 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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
MEX — BUE
ago. 19 — ago. 261
mar. 8/19
mar. 8/26
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 Tuesday or Saturday 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 agosto 14, 2025.

Round-trip from

$647
(Kiwi.com)

One-way from

$327
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$768

Good round-trip deal

$944 or less

Good one-way deal

$469 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 ($81 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 August 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 agosto 14, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
sáb. 10/1112:55 pmMEX - EZE
2 stops12h 55mAvianca
jue. 10/161:40 amEZE - MEX
1 stop13h 25mAvianca
Deal found 8/14$647
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
sáb. 11/1512:40 amMEX - EZE
1 stop12h 10mAvianca
dom. 11/304:55 pmEZE - MEX
1 stop13h 05mAvianca
Deal found 8/14$653
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
sáb. 11/812:40 amMEX - EZE
1 stop12h 10mAvianca
dom. 11/167:35 amEZE - MEX
1 stop13h 35mAvianca
Deal found 8/12$654
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
jue. 10/95:00 amMEX - EZE
1 stop17h 25mAvianca
dom. 10/264:55 pmEZE - MEX
1 stop13h 05mAvianca
Deal found 8/14$658
This Cheapflightsfares deal was found by Cheapflights users on 8/14. 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.
mié. 9/312:40 amMEX - EZE
1 stop20h 30mAvianca
mar. 9/234:45 pmEZE - MEX
1 stop13h 20mAvianca
Deal found 8/14$660
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
lun. 11/1012:40 amMEX - EZE
1 stop12h 10mAvianca
lun. 11/174:55 pmEZE - MEX
1 stop13h 05mAvianca
Deal found 8/12$661
This FlightHub deal was found by Cheapflights users on 8/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/117:50 pmMEX - AEP
1 stop15h 50mLATAM Airlines
mar. 11/189:05 pmAEP - MEX
1 stop20h 50mLATAM Airlines
Deal found 8/13$661
This LATAM Airlines deal was found by Cheapflights users on 8/13. 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.
mié. 10/18:00 pmMEX - EZE
1 stop12h 45mLATAM Airlines
sáb. 10/115:35 amEZE - MEX
1 stop13h 00mLATAM Airlines
Deal found 8/13$662
This LATAM Airlines deal was found by Cheapflights users on 8/11. 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.
mar. 9/165:20 pmMEX - AEP
1 stop17h 40mLATAM Airlines
sáb. 9/279:05 pmAEP - MEX
1 stop21h 30mLATAM Airlines
Deal found 8/11$662
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
jue. 11/2712:55 pmMEX - EZE
2 stops13h 01mAvianca
jue. 12/47:35 amEZE - MEX
1 stop13h 35mAvianca
Deal found 8/13$665
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
jue. 11/1311:15 pmMEX - EZE
1 stop13h 35mAvianca
jue. 11/207:35 amEZE - MEX
1 stop13h 35mAvianca
Deal found 8/13$666
This Priceline deal was found by Cheapflights users on 8/14. 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.
lun. 11/1012:40 amMEX - EZE
1 stop12h 10mAvianca
mar. 11/187:35 amEZE - MEX
1 stop13h 35mAvianca
Deal found 8/14$667

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 agosto 14, 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

sáb. 10/11

12:55 pm-4:50 am

2 stops12h 55m

Buenos Aires Ministro Pistarini

jue. 10/16

1:40 am-12:05 pm

1 stop13h 25m

$647

Mexico CityBuenos Aires

MEX - EZE

MEXEZE

Mexico City Benito Juarez

dom. 11/16

12:40 am-3:50 pm

1 stop12h 10m

Buenos Aires Ministro Pistarini

dom. 11/30

4:55 pm-3:00 am

1 stop13h 05m

$653

Mexico CityBuenos Aires

MEX - EZE

MEXEZE

Mexico City Benito Juarez

mié. 9/3

12:40 am-12:10 am

1 stop20h 30m

Buenos Aires Ministro Pistarini

mar. 9/23

4:45 pm-3:05 am

1 stop13h 20m

$660

Mexico CityBuenos Aires

MEX - AEP

MEXAEP

Mexico City Benito Juarez

mar. 11/11

7:50 pm-2:40 pm

1 stop15h 50m

Buenos Aires Jorge Newbery

mar. 11/18

9:05 pm-2:55 pm

1 stop20h 50m

$661

Mexico CityBuenos Aires

MEX - AEP

MEXAEP

Mexico City Benito Juarez

vie. 10/3

5:20 pm-10:30 am

1 stop14h 10m

Buenos Aires Jorge Newbery

lun. 10/20

10:55 pm-2:55 pm

1 stop19h 00m

$662

Mexico CityBuenos Aires

MEX - AEP

MEXAEP

Mexico City Benito Juarez

jue. 9/25

8:00 pm-2:40 pm

1 stop15h 40m

Buenos Aires Jorge Newbery

sáb. 10/4

8:10 pm-1:50 pm

1 stop20h 40m

$662

Mexico CityBuenos Aires

MEX - AEP

MEXAEP

Mexico City Benito Juarez

mié. 10/1

5:20 pm-10:30 am

1 stop14h 10m

Buenos Aires Jorge Newbery

sáb. 10/11

9:05 pm-3:35 pm

1 stop21h 30m

$662

Mexico CityBuenos Aires

MEX - AEP

MEXAEP

Mexico City Benito Juarez

mar. 9/16

5:20 pm-2:00 pm

1 stop17h 40m

Buenos Aires Jorge Newbery

sáb. 9/27

9:05 pm-3:35 pm

1 stop21h 30m

$662

Mexico CityBuenos Aires

MEX - AEP

MEXAEP

Mexico City Benito Juarez

mié. 11/19

7:50 pm-10:30 am

1 stop11h 40m

Buenos Aires Jorge Newbery

dom. 11/30

8:25 pm-1:50 pm

1 stop20h 25m

$662

Mexico CityBuenos Aires

MEX - EZE

MEXEZE

Mexico City Benito Juarez

dom. 11/9

12:40 am-3:50 pm

1 stop12h 10m

Buenos Aires Ministro Pistarini

lun. 11/17

7:35 am-6:10 pm

1 stop13h 35m

$666

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 34 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 8, 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 agosto 14, 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 14% 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.

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 agosto 14, 2025.
See what other customers who have flown with LATAM Airlines, Copa 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.
LATAM Airlines
7.5
Good
1,840 reviews

Entertainment

7.0

Crew

8.0

Overall

7.5

Boarding

7.6

Comfort

7.4

Food

6.7

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing
LATAM Airlines
7.5
Good
1,840 reviews
LATAM Airlines
7.5
Good
1,840 reviews

Entertainment

7.0

Crew

8.0

Overall

7.5

Boarding

7.6

Comfort

7.4

Food

6.7

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing
Copa Airlines
7.5
Good
1,509 reviews
LATAM Airlines
7.5
Good
1,840 reviews

Entertainment

7.0

Crew

8.0

Overall

7.5

Boarding

7.6

Comfort

7.4

Food

6.7

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing
Aeromexico
7.5
Good
1,724 reviews
LATAM Airlines
7.5
Good
1,840 reviews

Entertainment

7.0

Crew

8.0

Overall

7.5

Boarding

7.6

Comfort

7.4

Food

6.7

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing
Avianca
6.7
Okay
2,401 reviews
LATAM Airlines
7.5
Good
1,840 reviews

Entertainment

7.0

Crew

8.0

Overall

7.5

Boarding

7.6

Comfort

7.4

Food

6.7

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing

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.

  • 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 $644 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 $738 for a flight from Mexico City to Buenos Aires. The cheapest flight overall is $469 while the most popular route, (Mexico City Benito Juarez - Buenos Aires Ministro Pistarini) is currently priced at $639.

  • 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

Browse thousands of different options on Cheapflights for your next trip

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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 agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$524Average$846FlexibilityNo cancel feeOn-time71%
LATAM AirlinesCheapest$644Average$880FlexibilityNo cancel feeOn-time81%
Copa AirlinesCheapest$683Average$1,141FlexibilityNo cancel feeOn-time70%
AeromexicoCheapest$737Average$1,052FlexibilityNo cancel feeOn-timeN/A

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