Flights Ciudad de México to Buenos Aires (MEX-EZE): airlines

Flights Ciudad de México → Buenos Aires: airlines, fares, timing

The MEX–EZE route appears in our catalogue with 7 weekly departures (~1.0 per day) across 3 airlines, 10.0 h of block time and 7,397 km great-circle between Ciudad de México and Buenos Aires. Demand score: 7/10, classified as the Latin American regional corridor.

Mexico City to Buenos Aires connects the Mexican capital with the capital of Argentina, with around 7 flights a week, one a day. The route carries business travellers, tourists and Mexicans visiting relatives. Block time is about ten hours, a long-haul sector.

At ~1.0 departures a day there is daily service but little cushion: if the flight cancels, the same airline’s next option is usually the following day. Leave slack on any onward connection and avoid buying the last departure of the day when something is booked after it.

Buenos Aires runs 3 h ahead of Ciudad de México (UTC−3 against UTC−6 in July). Work out the real local arrival hour before booking ground transport, a hotel or an onward surface connection.

Airlines operating this route

3 airlines operate MEX–EZE: Aeromexico, Aerolíneas Argentinas, LATAM Airlines. 3 are full-service and 0 low-cost; included checked allowance ranges from 23 to 25 kg depending on the operator. Between them they run 7 weekly departures over 10.0 h of block time; alliances present: SkyTeam.

Three carriers fly MEX-EZE: Aeroméxico, Aerolíneas Argentinas and LATAM Airlines, all full-service with checked baggage and meals included. Aerolíneas Argentinas has its main hub in Buenos Aires, widening onward connections within Argentina.

Full-service and low-cost are not selling the same thing. The pair’s 3 full-service airlines sell a price that already includes a bag and usually paid changes; the 0 low-cost ones sell the seat and charge for everything else. At comparable departure times the decision comes down to how much luggage you really carry and whether you need date flexibility — not to the first figure the search engine shows.

MXN fares — what to expect

There is no live cached fare for MEX-EZE, but 4 historical readings exist between 2026-W20 and 2026-W27: the observed floor in that window was $3,930 MXN and the ceiling $6,307 MXN. Only 34 of 109 corridors returned a price on the last pass.

MEX-EZE fares climb in the summer, December and Holy Week. For those dates, booking two to three months ahead is sensible. Outside the peaks, six to nine weeks usually secures a reasonable economy fare in MXN.

Get live fares on Aviasales →

Buying window: a general market rule of thumb. At demand 7/10 and 7 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 MEX-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.

Round trip versus two one-ways. On multi-operator routes two separate one-ways sometimes total less than a return — but they stop being a single contract of carriage: if the first is cancelled the second stays alive and there is no cross-rebooking. Price the return first and take the split only when the gap is wide and the dates are firm.

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 7,397 km from Ciudad de México and runs on America/Argentina/Buenos_Aires. The flight from Ciudad de México 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 Mexican 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.

EZE as a hub. Buenos Aires is a base for Aerolíneas Argentinas, and that changes what to expect on the ground: more of the airline’s own frequencies to be rebooked onto, more onward destinations from the same terminal and, where the home carrier dominates, less competitive pressure on fares. It matters most when EZE is your connecting point rather than your final destination.

How the MEX-EZE fare has moved

Across 4 weekly readings between 2026-W20 and 2026-W27 of 2026, the detected minimum for MEX-EZE moved between $3,930 MXN and $6,307 MXN, a 60% range. The cheapest reading fell in week 2026-W20. The latest reading sits 10% below the one before it.

How to use it when buying. If today’s quote sits near $3,930 MXN you are at the low end of what was observed in this window and waiting rarely pays. If it is above $6,307 MXN, or your dates fall in December, Holy Week or summer, the figure you see is probably seasonal rather than structural. In no case extrapolate the series forward: six readings do not predict the seventh.

What a 60% range means. Dispersion like that between readings taken in different weeks says the price of MEX-EZE depends far more on when you look and which dates you search than on the airline. It is not a trend: these are point samples of the available floor, and a low floor usually corresponds to awkward dates — pre-dawn departures, midweek, off-season — rather than to a general market drop.

Passenger rights on the MEX–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 MEX → 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

At 10.0 h and 7,397 km, MEX-EZE is a long-haul sector where most of the cheap fares on the market arrive with one or two stops. The price gap against the direct flight has to be weighed against total journey time and the risk of missing the connection.

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 MEX-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 Ciudad de México to Buenos Aires? Direct MEX-EZE flights are operated by Aeromexico, Aerolíneas Argentinas, LATAM Airlines. Compare baggage, fares and schedules in the carrier table above.

How long is the MEX-EZE flight and how often does it run? Block time is about 10.0 hours. The MEX-EZE route runs roughly 7 flights per week across all carriers.

How far ahead should I book MEX-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 MEX-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 Ciudad de México
• 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.