Flights Monterrey to Buenos Aires (MTY-EZE): airlines, frequency

Flights Monterrey → Buenos Aires: airlines, fares, timing

The MTY–EZE route appears in our catalogue with 2 weekly departures (~0.3 per day) across 1 airline, 10.0 h of block time and 8,035 km great-circle between Monterrey and Buenos Aires. Demand score: 5/10, classified as the Latin American regional corridor.

Monterrey to Buenos Aires connects northern Mexico with the capital of Argentina, with around 2 flights a week. The route carries business travellers, tourists and passengers connecting onward to the Southern Cone. Block time is about ten hours, a long-haul sector.

At 2 weekly departures this is not a daily route. On a route like this a cancellation can mean waiting days or accepting a reroute through another airport, and the departure dates drive the price far more than the choice of carrier.

Our classification places this pair in the Latin American regional corridor, with migrant_route = no. The 5/10 demand score is our own composite of search volume, family-travel recurrence and leisure seasonality; it compares corridors against each other inside this site and is not a passenger count.

Airlines operating this route

A single catalogued airline operates MTY–EZE: Aeromexico, with 2 weekly departures. With no second operator there is no carrier-to-carrier price comparison on this pair, so the only real saving lever is the departure date, not the choice of airline. Checked allowance: 25 kg.

Aeroméxico flies MTY-EZE full-service, with checked baggage and meals included, on a long-haul aircraft. As a single-carrier route with very few frequencies, it is worth planning with margin and choosing dates that line up with the available departure.

Miles only count inside the right alliance. SkyTeam are present on this pair. Crediting the flight to a programme in a different alliance normally earns nothing, and the cheapest fares typically credit a reduced share of miles or none at all. If the goal is status rather than price, check the specific booking class before buying, not just the airline name.

The allowance belongs to the fare, not to the passenger. The kilos listed are those of the published base fare. ‘Basic’, ‘light’ and ‘zero’ families on several carriers exclude the checked bag, seat selection and sometimes date changes, even though the flight and the aircraft are identical. The carrier’s AM Paisano (1ra maleta gratis 25kg internacional) programme attaches to specific fare families: buy the cheapest bucket and the benefit does not travel with you. Always compare with the bag already added: on short sectors the ranking of operators usually flips once it is in.

MXN fares — what to expect

There is no live cached fare for MTY-EZE, but 1 historical readings exist between 2026-W25 and 2026-W25: the observed floor in that window was $7,201 MXN and the ceiling $7,201 MXN. Only 34 of 109 corridors returned a price on the last pass.

With one carrier and few frequencies, MTY-EZE fares respond quickly to demand. The Southern Cone summer, December and Holy Week are the peaks. For those dates, booking three to five months ahead is sensible; off-season, six to nine weeks usually secures a reasonable fare in MXN.

Get live fares on Aviasales →

Buying window: a general market rule of thumb. At demand 5/10 and 2 weekly departures the usual reference is 4 to 8 weeks ahead on ordinary dates and 8 to 12 weeks for December, Holy Week and summer. That is a general Mexican-market rule of thumb, not a measurement of MTY-EZE: our series records observed prices, not the lead time at which each ticket was bought. What the data does support is that the lower the frequency, the sooner cheap inventory runs out.

About Buenos Aires

Buenos Aires (EZE) appears in 2 routes in our catalogue from 2 Mexican airports, totalling 9 weekly departures. Aeropuerto Internacional Ministro Pistarini (EZE, ICAO SAEZ) lies 8,035 km from Monterrey and runs on America/Argentina/Buenos_Aires. The flight from Monterrey runs 10.0 h block time per our catalogue.

Buenos Aires is the capital of Argentina, a city of wide avenues, strongly characterful neighbourhoods and an intense cultural life on the banks of the Río de la Plata. For Monterrey travellers it is a first-rank urban destination and a connecting point for the rest of Argentina.

Destination record. Buenos Aires — Argentine capital, no visa for Mexicans. Asado, tango, wines, informal USD blue rate.

Currency and paperwork at destination. Spending in Buenos Aires runs in ARS, while the fare is compared in pesos. For a Mexican passport our record lists: Sin visa Mercosur turismo 90 días. That field is a starting reference; the real requirement depends on the purpose of travel and is set by the destination’s immigration authority, not the airline.

Passenger rights on the MTY–EZE route

25% of the ticket at minimum for a delay over 4 h attributable to the airline: that is what Art. 47 Bis of the Ley de Aviación Civil sets on the MTY → EZE leg, which departs Mexico. On the return from Argentina the departure country’s regulator governs.

What does apply on departure from Mexico. Mexico’s Ley de Aviación Civil (Art. 47 Bis), enforced by AFAC and PROFECO, covers flights taking off from Mexican territory regardless of the airline’s nationality: a delay over 4 hours attributable to the carrier entitles you to at least 25% of the ticket price, and from the first hour the airline owes assistance that escalates with duration. Keep the boarding pass and the purchase receipt — a claim stands on those two documents.

Connections, layovers and the checked bag

With one catalogued airline and 2 weekly departures, MTY-EZE leaves little slack: if the flight goes, the realistic alternative is a connection via another airport. Before accepting one, check whether the itinerary is on a single ticket or on two.

The cheap connection that loses the checked bag. Two separate tickets are not one itinerary: there is no interline agreement, the bag is not checked through to the final destination, and if the first flight lands late the second airline owes you nothing — it sold a different flight. The apparent saving evaporates the moment you buy a same-day replacement. On a single ticket, rebooking and the bag transfer are the carrier’s problem, not yours.

‘Direct’ is not ‘nonstop’. In booking language a direct flight is one that keeps the same flight number end to end — and it may land at an intermediate city, offload passengers and take off again. Nonstop is a different claim. When the search engine shows a total time well above the catalogued block time for the pair, there is an intermediate stop in there, whatever the ‘direct’ filter says.

Documents to sort out before buying

Verified 2026-05-18: with a Mexican passport, Argentina requires Sin visa para estancias ≤90 días, at a cost of Gratis (exento) and a maximum stay of 90 días por entrada. Confirm the current amount before paying. Buying the ticket before the document exists is the expensive mistake on this route.

Check the current amount before paying. The consular fee and stay limit above are the ones in our immigration file, last verified on 2026-05-18. Consulates revise those amounts without notice and publish no change calendar, so confirm the current figure at the official source on the day you pay. A receipt issued at the old rate is neither refunded nor credited — it is simply paid again.

The right order: document first, ticket second. A cheap fare does not survive a pending immigration formality. The airline will not refund a non-refundable ticket because your visa was denied or delayed, and the change fee usually exceeds the saving you were chasing. Buy once the document is issued, or buy a changeable fare and accept that the premium is the price of the risk.

FAQ

The 5 questions on this record are answered from catalogue figures for MTY-EZE: routes and weekly frequencies, minimum fares observed by the collector, checked-baggage allowances and the rights regime that applies on each leg. No answer adds data that is not in those sources.

Which airlines fly Monterrey to Buenos Aires? Direct MTY-EZE flights are operated by Aeromexico. Compare baggage, fares and schedules in the carrier table above.

How long is the MTY-EZE flight and how often does it run? Block time is about 10.0 hours. The MTY-EZE route runs roughly 2 flights per week across all carriers.

How far ahead should I book MTY-EZE for the best fare? As a general Mexican-market rule of thumb — not a measurement of this route — booking runs 4-8 weeks ahead for regular dates and 8-12 weeks for peak season (Holy Week, Christmas, paisano summer). See the month-by-month fare heatmap above.

What is the checked baggage allowance on MTY-EZE? It varies by carrier and fare class — full-service carriers on this route usually include 23-25 kg, while low-cost carriers sell it separately. Confirm the current policy on the airline’s site before booking.

Do Mexican passport holders need a visa for Argentina? Sin visa Mercosur turismo 90 días. Check the latest requirements with the consulate before buying your ticket.

Related articles

• Flights from Monterrey
• Flights to Buenos Aires
• Baggage comparator

Published by FlightsMX Editorial Team. Last verified: May 2026. Fares are reference brackets — verify with the airline before booking.