How to Check In with Aeroméxico: Complete Online and Airport Guide

Whether you’re a frequent traveler or going on vacation, a smooth check‑in can make your trip much easier, especially for international flights. Aeroméxico, Mexico’s national airline and a member of the SkyTeam alliance, flies to over 40 destinations in Mexico and around the world. In 2025, the airline carried more than 18 million passengers, so knowing how to check in efficiently is very important. By understanding the timing, baggage rules, and check‑in options, you can save time, avoid stress, and start your journey with confidence.

How and When to Complete Aeroméxico Flight Check-in

Completing your Aeroméxico flight check-in on time ensures a smooth start to your journey. You can check in online, via the web, or at the airport, depending on your preference and baggage needs.

Modes of Check‑In

You get multiple check-in options on Aeroméxico, giving you flexibility. According to the airline’s official site:

• Online Check-in: You can complete web check‑in via the website.

• Mobile Check-in: There is also a mobile check‑in option, typically via the Aeroméxico app (though the specific app details are bundled under web/mobile options).

• At the airport: You may check in at counters or self‑service kiosks if you cannot or did not complete online or web check‑in.

Timing for Check‑In

It’s important to understand the time required when checking in, especially for domestic and international flights.

• Domestic flights (within Mexico): You can use online or web check‑in starting up to 48 hours before departure.

• International flights: Online or web check‑in opens 24 hours before your flight.

• For some domestic flights: The airline also indicates that for flights entirely within Mexico, you may even use web check‑in from 24 hours up to one hour before departure.

Why Check‑In Online or Early?

• You get your boarding pass (digital or printed) in advance.

• You can select or change your seat (depending on fare) up to a certain point before departure.

• Save your time spent at the airport, you may simply proceed to the bag drop (if required) or security if carry‑on only.

• Especially for international travel with multiple segments, checking in early helps avoid last‑minute stress at the airport.

Also read How to Cancel an Aeroméxico Flight: Refunds, Rules, and Compensation

Airport Check‑In or Kiosk Check‑In

If you don’t want to check in online or need to drop off checked baggage, Aeroméxico offers airport counter check‑in and self-service kiosk check‑in. All these options are valid ways to check in.

Tip: Even if you plan to check in at the airport, you must arrive early. For international flights, give yourself extra time for document checks, baggage drop, and security or boarding.

Baggage and Size Rules When Checking In

Baggage allowance is one of the most important things to know when checking in. Here’s what you should know:

Carry‑On Baggage (Cabin):

• Maximum size: 55 cm × 40 cm × 25 cm (21.5″ × 15.7″ × 10″).

• Weight limits depend on your fare, route, and cabin. For example, Basic fare allows a carry‑on plus personal item up to 10 kg.

Checked Baggage (Size & Weight):

• For many international flights, you can check 1 bag up to 25 kg (55 lb) with a maximum size of 158 cm (62 in) total (length + width + height).

• On domestic or certain fare types, the baggage allowance may vary, or the first piece may not be included, and this depends on the fare family.

Recommendations and Restrictions:

• Arrive at least 2 hours before departure for domestic baggage drop, and 3 hours for international, if you have baggage and checked in digitally.

• There are some specified forbidden and restricted items like liquids, aerosols, and other dangerous goods.

Why Baggage Dimensions Matter at Check‑In:

Even if you check in online or at the airport, your baggage must meet the airline’s size and weight limits. Overweight or oversized bags can lead to extra fees, so always check your fare’s baggage rules before your trip.

International Check‑In Specifics

When flying internationally with Aeroméxico, there are a few extra things to keep in mind at check-in.

Check‑In Window for International Flights:

The window for online or web check‑in for international flights opens 24 hours before departure.
Airport counters require you to show your passport or other valid travel documents along with your boarding pass (digital or printed).

Documents and Boarding Pass:

• Make sure your passport, visa, or other required documents are valid for your destination.

• If you check in online, you’ll usually get a digital boarding pass, which may need to be shown at security and boarding.

• If you have checked baggage, you must still drop it at the counter or kiosk within the allowed time, so arrive early.

Arrival at Airport for International Flights:

Aeroméxico doesn’t specify exact gate‑closure times, so arrive early to allow time for immigration, customs, and boarding. If you’re checking baggage for an international flight, it’s recommended to arrive at least 3 hours before departure.

Seat Selection and Fare‑Related Check‑In Timing:

• Some fare types have special rules. For example, the Basic fare allows digital check‑in starting 24 hours before departure, even for domestic flights.

• Always check your fare details when booking to know your check‑in options and timing.

How to Complete Aeroméxico Online or Web Check‑In

You can easily follow these simple steps to check in online or via the mobile app:

• Prepare booking details: Have your reservation code (PNR), last name, and travel documents ready.

• Visit the website or app: Open the “Check‑In” section.

• Select your flight: Choose the passengers and flight segment you want to check in for.

• Choose your seat (if available): Some seats may cost extra depending on your fare.

• Obtain boarding pass: After completion, you’ll be able to download, email, or save a digital boarding pass. Some airports accept mobile boarding passes.

• Drop checked baggage (if any): Go to the airport counter or kiosk within the allowed time window. Arrive early to avoid delays.

• At airport arrival: Have your boarding pass and travel documents ready. Proceed to baggage drop, security, and boarding as per airport instructions.

Pro Tips:

• Always confirm the check‑in window for your flight, as it may vary by route and fare.

• Even if you have only carry-on luggage, arriving early helps avoid airport congestion.

• For mobile boarding passes, ensure your phone is charged and accessible.

• Check your baggage allowance for your fare type in advance to avoid extra fees.

Also read How to Book Aeroméxico Flights: Online, Group, and Seat Selection

FAQs About Aeromexico Check-In

Q1. When does Aeroméxico online check‑in open for my flight?

If your flight is domestic (within Mexico), online/web check‑in opens 48 hours before the scheduled departure. For international flights, it opens 24 hours before.

Q2. What size carry‑on bag is allowed during check‑in?

The allowed cabin bag size is 55 cm × 40 cm × 25 cm (21.5″ × 15.7″ × 10″), and the weight limits depend on fare type.

Q3. What is the checked baggage size and weight limit for international flights?

For many international flights, Aeroméxico allows 1 checked bag up to 25 kg (55 lb) with dimensions not exceeding a total of 158 cm (62″) (length + width + height).

Q4. Do I need to check in at the airport if I did online check‑in?

Only if you have checked baggage. With carry-on only, you can go straight to security with your digital or printed boarding pass.

Q5. What if I miss the online check‑in window?

You can still check in at the airport. Arrive early to avoid long lines or missed flights.

Q6. Can I choose seats during web check‑in?

Yes, you can select or change your seat during online check‑in, depending on availability and fare type.

Q7. Are check‑in rules different for certain fare types?

Yes, some fares (like Basic) allow online check‑in 24 hours before departure, and benefits like seat choice or baggage allowance may vary.

Conclusion

Understanding Aeroméxico flight check-in can save you time, reduce stress, and make your journey smoother, whether you are traveling domestically or internationally. Using Aeroméxico online check-in or Aeroméxico web check-in allows you to select seats, obtain your boarding pass digitally, and streamline your airport experience. Being aware of the Aeroméxico check-in baggage size rules ensures you avoid extra fees and surprises at the counter. For international travel, knowing the Aeroméxico international check-in requirements, including document checks and timing, is essential for a seamless experience.

Book Your Aeroméxico Flight with Flightsquest Today, and skip the hassle and start your trip stress-free. With Flightsquest, you can easily find the best Aeroméxico flights, check baggage allowances, and enjoy seamless online or web check-in. Book now and travel with confidence.