Madrid → Mexico City (MAD–MEX): five assumptions to drop before you fly

Madrid to Mexico City is a long flight between two places that feel culturally close. Shared language, a lot of shared history, plenty of family traffic in both directions. That closeness breeds assumptions, and a few of them are out of date or just wrong. Here are the ones worth dropping.

Assumption 1: “There’s a paper tourist card to fill in on the plane”

Not any more, at least not at Mexico City. Mexico’s immigration institute (INM) has moved air arrivals to a digital FMM (Forma Migratoria Múltiple). At the immigration desk or eGate you get a ticket with a QR code, which you use to download your digital FMM, and you’re expected to keep it until you leave the country. The Mexican Embassy in Peru adds that you can retrieve it through the INM services portal within 60 days of entry. Download it on day one, email it to yourself, and you won’t be hunting for it at check-in on the way home.

What hasn’t changed is the substance of entry. The Mexican Embassy in Spain says Spanish passport holders don’t need a visa for tourism or family visits, with stays of up to 180 days. It also says you should be ready to show:

• where you’re staying (a hotel booking, or the address and contact of whoever you’re visiting),
• that you have enough money for the stay,
• a return ticket.

The officer decides how many days to grant, and the embassy is blunt that people who can’t show they’re genuine tourists can be refused and sent back on the next flight. Carry the hotel confirmation and return booking somewhere you can reach without Wi-Fi.

eGates help. Mexico’s automated immigration filters (FMA) at Mexico City’s terminals accept Spanish and 29 other listed passports, for adults travelling as tourists with an electronic passport valid for at least 180 more days and no minors in tow. Families go to the desks.

If you’re flying from Madrid on a non-Spanish passport, none of this applies automatically. Check your own nationality’s requirements on our Mexico country page.

Assumption 2: “Mexico is seven hours behind, full stop”

It depends on the week. Mexico abolished daylight saving time nationally in October 2022, except for areas along the US border, so Mexico City sits on UTC−6 all year. Spain still changes its clocks on the EU schedule: the last Sunday in March and the last Sunday in October.

So:

• Until 25 October 2026: Madrid is UTC+2, so Mexico City is 8 hours behind.
• 25 October 2026 to 28 March 2027: Madrid is UTC+1, so the gap is 7 hours.

If you’re booking a call home, a pickup, or a connecting flight around those dates, re-check in local time. Our time-zone explainer covers why “it’s always X hours” breaks down.

The upside of flying west: you leave Madrid around midday or afternoon and land in Mexico City the same day, often in the evening local time, which makes it easy to sleep at a normal-ish hour. The return is the hard direction, landing in Spain the next day.

Assumption 3: “Altitude only matters if you go hiking”

Mexico City sits at 2,240 m (7,350 ft), according to the city’s own visitor guide on altitude. Madrid is Europe’s second-highest capital at about 660 m, so even Madrileños are climbing well over a vertical kilometre.

That’s above the 1,500 m level where the city’s guide says altitude sickness can appear. Serious cases are rare among city visitors, but the common symptoms — shortness of breath on stairs, headaches, poor sleep, low appetite — are worth expecting rather than being surprised by. Combine them with a long flight and a seven- or eight-hour time shift, and day one can feel worse than it should.

What helps, per the same guide: slow down, drink water, go easy on alcohol, and don’t plan anything strenuous for the first day. The practical version is to put the museums and walking on day one, and save Teotihuacán’s pyramids and a big night out for day two or three.

Assumption 4: “Bring euros, or dollars to be safe”

Mexico runs on pesos (MXN). Euros are not widely accepted outside a few exchange counters, and changing them at the airport usually costs you on the rate. The better approach:

1. Pay by card where you can. Cards are widely accepted in restaurants, shops and hotels in the city. Contactless cards also work on Metrobús Line 4 from the airport, per the city’s AICM guide.
2. Withdraw pesos from a bank ATM for markets, street food, tips and small shops. Decline the ATM’s offer to convert to euros; that’s dynamic currency conversion, and the rate is worse.
3. Know the reference rate. The ECB publishes a daily EUR/MXN reference rate, and our currency page shows the live figure. If a booth’s rate is far off it, walk.

Our travel money card comparison covers which cards avoid foreign transaction fees.

Power is different too. Mexico uses Type A and B sockets at 127 V and 60 Hz, according to the IEC; Spain uses Type C and F at 230 V. Phone and laptop chargers rated 100–240 V only need a plug adapter. Hair dryers and straighteners built for 230 V may not work properly.

Assumption 5: “Any taxi outside the terminal will do”

At Mexico City’s Benito Juárez airport (MEX), the city’s own AICM guide lists the safe options:

• Authorised taxis, bought at ticket counters inside the terminal, with fixed zone-based fares paid in advance. This is the default for a first arrival.
• Metrobús Line 4, which the city calls the fastest, cheapest and safest public option, at 30 MXN. Cash isn’t accepted: pay by contactless card or with a city mobility card from the machines at the stop.
• Ride-hail apps (Uber, DiDi, Cabify) are legal, but pickups happen on the roads outside the terminals rather than at the doors, which is a tiring walk with heavy bags.
• Metro Line 5 is very cheap, but the guide doesn’t recommend it for new arrivals with luggage.

The free Aerotrén links Terminals 1 and 2 if you need to switch; it needs a boarding pass. Check which terminal your airline uses on the booking before you land.

What flies the route, and how long it really takes

The great-circle distance is 9,065 km (5,633 mi). Our block-time estimate is about 11h20, but real schedules are longer, and westbound flights fight prevailing headwinds; FlightsFrom puts the flight at about 12h50.

At the time of writing, FlightsFrom lists two nonstop carriers with five or six flights a day between them: Aeroméxico (Boeing 787) and Iberia (Airbus A350). Our MAD–MEX route page shows the historical OpenFlights list, which also includes Air Europa and Alitalia; treat that as history and check the airlines directly.

With two carriers and several daily departures, prices vary by day and fare family more than by airline. A search on Kayak Partner across a flexible week usually shows the pattern. And because a European health card means nothing in Mexico, travel medical cover — for example SafetyWing Partner — is worth arranging before you go.

If you’re comparing this with arrivals from North America, our Toronto → Mexico City guide covers the same airport from the other side.