Say you need to change a Mexico City to JFK Aeromexico flight tonight, or you’re trying to use SkyMiles through the Delta partnership and the website won’t let you. Pick up the phone. The main US reservations number is 1-800-237-6639 (that’s 1-800-AEROMEX). It’s toll-free, 24/7, and lands you with an English-speaking agent who can see Delta-partner bookings too. From the UK, dial 0800 977 5533; from Ireland, 1800 855 474. Aeromexico is Mexico’s legacy flag carrier, and unlike the ULCC side of the market, calling actually gets things done — agents have authority to rebook, waive certain fees, and process refunds on the spot.
In This Article
The reservations numbers
Aeromexico publishes country-by-country lines on its contact page. Here are the ones most readers will actually use:
- US and Canada (toll-free): 1-800-237-6639
- United Kingdom: 0800 977 5533
- Ireland: 1800 855 474
- Mexico (from inside MX): 55 5133 4000
- Argentina: +54 11 4131 0200
If you’re calling from outside any of those countries, there’s a paid international line: +52 55 5133 4000. Don’t be tempted by “1-888-AEROMEXICO” numbers you see in sponsored SERP results — those are aggregators that re-sell Aeromexico tickets with a markup. The only airline-owned US number is the 1-800-237-6639 line, and you can verify it yourself on aeromexico.com/en-us/contact.
When to call
Aeromexico call volume spikes in two windows: weekday mornings 8–11am Mexico time (business travellers sorting day-of problems) and Sunday evenings 6–10pm (weekend-leisure rebookings). Avoid both. Midweek afternoons and weekend mid-mornings are your friend — I’ve been through with a ten-minute wait on a Wednesday at 3pm Mexico time, versus a 50-minute stretch on the same line at 9am on a Monday.
If you’re a SkyMiles Elite through the Delta partnership, look for the priority line on your membership page — it’s a different number and the hold is usually under five minutes. Regular flyers don’t get that shortcut, but a Club Premier Platino or Titanio number usually appears in the member dashboard at aeromexico.com.
What to have ready
You’ll move faster if you’ve pulled up the basics before the agent answers. Aeromexico reps work through a standard intake script and they can’t start until they’ve identified the booking:
- Six-character reservation code (or the 13-digit e-ticket number if you have it)
- Club Premier number if you have one — the mileage plan often unlocks fee waivers
- Exact legal name as printed on the passport you’re flying with
- The card used to pay, for refund verification
- Flight number and date you’re calling about, not just the route
One useful detail: Aeromexico is a full SkyTeam member, so Delta, KLM, and Air France codeshare bookings can be serviced through the Aeromexico line — but only if the AM flight is the one you need to change. If the disruption is on the Delta-operated leg, Delta has to handle it. The Aeromexico agent will often tell you this in the first minute; don’t fight it.
Language is almost never an issue on the US number — agents are bilingual. If you get a Spanish-first prompt, say “English, please” when the IVR asks and you’ll route to an English queue. The Mexico City line is Spanish-first but agents will switch on request. Don’t hang up just because the greeting is in Spanish.
One more thing worth checking before you call: your reservation status on aeromexico.com. Sometimes the issue you’re calling about has already resolved itself — a flight change that auto-reaccommodated you, a fee that was auto-refunded, a seat that opened up. Five seconds of checking saves a ten-minute call.
Booking online
The website at aeromexico.com handles new reservations, seat selection, and baggage add-ons smoothly enough. Fare classes are Basic (bag fees, no changes), Classic (standard), AM Plus (extra legroom row), and Premier (lie-flat business on long-haul). Where the website struggles is partner redemption bookings and complex multi-city itineraries — those are where the phone earns its keep.
Honest opinion: if you’re mixing SkyMiles (Delta), Flying Blue (KLM/AF), or Aeromexico’s own Club Premier miles into a single itinerary, skip the website entirely. Call. The interface isn’t built for it and you’ll end up making a phone call to unpick whatever the booking engine did wrong.
The short version
- US reservations: 1-800-237-6639 (1-800-AEROMEX), 24/7
- UK: 0800 977 5533 · Ireland: 1800 855 474
- Midweek afternoons = shortest hold
- Club Premier / SkyMiles Elite has a separate priority line
- Avoid the 1-888 aggregators in sponsored search results
If you’d rather compare Aeromexico’s legacy carrier offering against the budget side of Mexican aviation, the contrast matters — the trip on Volaris reservations is a different beast, with stricter fare rules and change fees that stack fast. And for cancellation-specific walkthroughs for partner airlines, see the cancellations section.
Numbers verified April 2026 against aeromexico.com/en-us/contact and aeromexico.com/en-us/contact-us. The 1-800-237-6639 line spells 1-800-AEROMEX on a US phone keypad, which is why it’s easier to remember than most toll-free airline numbers.
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