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$1,172+ Cheap flights from McAllen (MFE) to Buenos Aires (BUE)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
MFE — BUE
Apr 20 — Apr 271
Mon 4/20
Mon 4/27
1 adult, Economy
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Cheap flight deals from McAllen to Buenos Aires

Cheapest flights from McAllen to Buenos Aires
Explore the most affordable flight options available from McAllen to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 21, 2026.

This United Airlines deal was found by Cheapflights users on 3/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/412:10 pm
MFE
-
EZE
1 stop17h 50m
United Airlines
Mon 5/119:00 pm
EZE
-
MFE
1 stop16h 26m
United Airlines
Deal found 3/20$1,172
This American Airlines deal was found by Cheapflights users on 3/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/45:44 am
MFE
-
EZE
2 stops23h 31m
American Airlines
Mon 5/1110:20 pm
EZE
-
MFE
2 stops21h 10m
American Airlines
Deal found 3/20$1,176
This United Airlines deal was found by Cheapflights users on 3/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/282:05 pm
MFE
-
EZE
1 stop15h 55m
United Airlines
Sun 9/69:00 pm
EZE
-
MFE
1 stop13h 58m
United Airlines
Deal found 3/20$1,177
This American Airlines deal was found by Cheapflights users on 3/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2811:04 am
MFE
-
EZE
2 stops18h 11m
American Airlines
Sun 9/68:45 pm
EZE
-
MFE
2 stops24h 44m
American Airlines
Deal found 3/20$1,231
This United Airlines deal was found by Cheapflights users on 3/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/169:38 am
MFE
-
EZE
1 stop20h 22m
United Airlines
Wed 8/199:00 pm
EZE
-
MFE
1 stop18h 21m
United Airlines
Deal found 3/16$1,297
This United Airlines deal was found by Cheapflights users on 3/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:00 am
MFE
-
EZE
1 stop23h 00m
United Airlines
Fri 5/89:00 pm
EZE
-
MFE
1 stop22h 57m
United Airlines
Deal found 3/16$1,302
This United Airlines deal was found by Cheapflights users on 3/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/16:59 pm
MFE
-
EZE
1 stop35h 01m
United Airlines
Mon 7/69:00 pm
EZE
-
MFE
1 stop13h 56m
United Airlines
Deal found 3/19$1,365
This Delta deal was found by Cheapflights users on 3/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/15:25 am
MFE
-
EZE
2 stops26h 20m
Delta
Fri 5/88:10 pm
EZE
-
MFE
2 stops23h 11m
Delta
Deal found 3/16$1,381
This American Airlines deal was found by Cheapflights users on 3/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/175:44 am
MFE
-
EZE
2 stops23h 31m
American Airlines
Mon 4/2010:20 pm
EZE
-
MFE
2 stops21h 10m
American Airlines
Deal found 3/19$1,441
This United Airlines deal was found by Cheapflights users on 3/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/177:00 am
MFE
-
EZE
1 stop23h 00m
United Airlines
Mon 4/209:00 pm
EZE
-
MFE
1 stop27h 59m
United Airlines
Deal found 3/19$1,505
This Air Canada deal was found by Cheapflights users on 3/18. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/165:00 am
MFE
-
EZE
3 stops31h 30m
Air Canada
Wed 8/194:35 pm
EZE
-
MFE
3 stops42h 23m
Air Canada
Deal found 3/18$1,882

Find flight deals from McAllen to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from McAllen (MFE) 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 March 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,172
(United Airlines)
Provider with most accurate pricing for McAllen Miller Intl-Buenos Aires (BUE) flight deals.
Search Deals
Provider most trusted by Cheapflights users for McAllen Miller Intl-Buenos Aires (BUE) flights.
Search Deals
From McAllen Miller Intl to Buenos Aires (BUE)
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from McAllen 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 March 21, 2026.
Use the filters below to find and compare flights from McAllen to Buenos Aires that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

McAllenBuenos Aires

MFE - EZE

MFEEZE

McAllen Miller Intl

Sun 8/16

9:38 am-8:00 am

1 stop20h 22m

Buenos Aires Ministro Pistarini

Wed 8/19

9:00 pm-1:21 pm

1 stop18h 21m

$1,297

McAllenBuenos Aires

MFE - EZE

MFEEZE

McAllen Miller Intl

Fri 5/1

7:00 am-8:00 am

1 stop23h 00m

Buenos Aires Ministro Pistarini

Fri 5/8

9:00 pm-5:57 pm

1 stop22h 57m

$1,302

McAllenBuenos Aires

MFE - EZE

MFEEZE

McAllen Miller Intl

Wed 7/1

6:59 pm-8:00 am

1 stop35h 01m

Buenos Aires Ministro Pistarini

Mon 7/6

9:00 pm-8:56 am

1 stop13h 56m

$1,365

McAllenBuenos Aires

MFE - EZE

MFEEZE

McAllen Miller Intl

Fri 5/1

5:25 am-9:45 am

2 stops26h 20m

Buenos Aires Ministro Pistarini

Fri 5/8

8:10 pm-5:21 pm

2 stops23h 11m

$1,381

McAllenBuenos Aires

MFE - EZE

MFEEZE

McAllen Miller Intl

Fri 4/17

5:44 am-7:15 am

2 stops23h 31m

Buenos Aires Ministro Pistarini

Mon 4/20

10:20 pm-5:30 pm

2 stops21h 10m

$1,441

McAllenBuenos Aires

MFE - EZE

MFEEZE

McAllen Miller Intl

Fri 4/17

7:00 am-8:00 am

1 stop23h 00m

Buenos Aires Ministro Pistarini

Mon 4/20

9:00 pm-10:59 pm

1 stop27h 59m

$1,505

McAllenBuenos Aires

MFE - EZE

MFEEZE

McAllen Miller Intl

Sun 8/16

5:00 am-2:30 pm

3 stops31h 30m

Buenos Aires Ministro Pistarini

Wed 8/19

4:35 pm-8:58 am

3 stops42h 23m

$1,940

McAllenBuenos Aires

MFE - EZE

MFEEZE

McAllen Miller Intl

Fri 4/17

7:00 am-12:50 am

2 stops15h 50m

Buenos Aires Ministro Pistarini

Mon 4/20

9:00 pm-10:59 pm

1 stop27h 59m

$1,941

McAllenBuenos Aires

MFE - EZE

MFEEZE

McAllen Miller Intl

Wed 7/1

5:00 am-2:30 pm

3 stops31h 30m

Buenos Aires Ministro Pistarini

Mon 7/6

4:35 pm-10:56 pm

3 stops32h 21m

$2,238
Quickest round-trip

McAllenBuenos Aires

MFE - EZE

MFEEZE

McAllen Miller Intl

Wed 7/1

9:22 am-8:35 am

2 stops21h 13m

Buenos Aires Ministro Pistarini

Mon 7/6

9:50 pm-1:02 pm

1 stop17h 12m

$2,251

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/16

Sorted by cheapest first

Compare providers for flights from McAllen to Buenos Aires

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from McAllen to Buenos Aires in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on McAllen-Buenos Aires flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on McAllen-Buenos Aires flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from McAllen-Buenos Aires flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on McAllen-Buenos Aires flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for McAllen-Buenos Aires flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from McAllen to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from McAllen 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 McAllen to Buenos Aires
No data available for this route at this time. Please check back soon.

Related info for your journey

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

    Located just 2.0 mi from the city center, McAllen Miller Intl is the airport most travelers will use when flying to Buenos Aires from McAllen. Booking flights from Miller Intl (MFE) to Buenos Aires should be relatively easy as there are 0 daily outbound flights to Buenos Aires from 0 different airlines.

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

    There are many flights that can get you from McAllen to Buenos Aires in 20h 22m. Fly via United Airlines to get the fastest option. Airlines will cover a distance of 4947 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from McAllen 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.

See more FAQs

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