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AERO Airlines · Mexico · Premium travel · International · Thesis updated August 5, 2026

Record premium mix lifts Aeromexico as regulatory cliff looms

01 Running thesis

Premium strength, regulatory cliff

The bull case is that Aeromexico has structurally improved its profit margins. Premium revenue is now a record 43% of passenger revenue, nearly 17 percentage points above the pre-pandemic level. That means more customers are paying for better seats and flexible service.

The company gets a major lift from international flying. Management said roughly 70% of revenue comes from international markets. Those routes have been much better at passing higher fuel costs into ticket prices, helping the airline achieve a 70% fuel recapture rate in the second quarter.

Management expects to utilize 10 newly allocated slot pairs at the Mexico City airport this winter to support highly profitable capacity expansion. This follows a move to lower full-year capacity growth to a careful 2% to 3%.

The bear case is clear: the U.S. business could lose a key profit tool. The U.S. Department of Transportation issued a Final Order in September 2025 to terminate antitrust immunity for the Delta joint cooperation agreement. The Eleventh Circuit heard oral arguments in June 2026, and a final ruling remains a critical watch item.

Jul 2026Q2 2026 earnings showed a record 43% premium revenue mix and a 70% fuel cost recapture rate, beating targets. The airline also secured 10 new slot pairs in Mexico City for winter expansion.
Apr 2026The 2026 20-F added major risk to the U.S. transborder thesis. Regulatory actions to end Delta antitrust immunity and new route limits, plus engine removals, raise the chance of lower margins.
Apr 2026Q1 2026 showed fuel pressure, but also showed why the international mix matters. Management cut 2026 capacity growth to 2% to 3% and laid out a path to full fuel recapture by the fourth quarter.
Feb 2026Q4 2025 established the premium-mix bull case. Premium revenue reached about 42% of total passenger revenue, while adjusted EBITDAR margin reached 31%.
02 Business model

A full-service fare machine

Aeromexico makes money by selling air travel across domestic Mexico, U.S. transborder routes, and longer international routes. It operates as a full-service carrier, competing on service, network reach, loyalty programs, and premium cabins rather than only on the lowest fare.

The margin story depends on product mix. Premium cabins and long-haul international routes can carry higher fares. That helps when fuel prices rise, because business and long-haul travelers are often more willing to absorb fare increases than price-sensitive domestic flyers.

The company has a natural hedge because many revenues and costs are tied to the U.S. dollar. However, a strong Mexican peso can still raise peso-denominated costs, including labor and local airport expenses.

The model faces severe pressure if regulators cut the value of the Delta partnership, if aircraft sit idle from engine maintenance, or if fuel spikes faster than fares can adjust. Airlines have high fixed costs, so small changes in capacity or pricing move profit significantly.

03 Product portfolio

What Aeromexico sells

Growth engine

Premium cabins

Premium revenue is a record 43% of passenger revenue. This is the core reason the margin profile has structurally improved.

Cash cow

Main cabin seats

Main cabin seats fill the network and keep aircraft utilization high. This product is more exposed to domestic price competition.

Growth engine

Long-haul international routes

Routes to Europe and Asia support the widebody growth plan. These markets have been better at absorbing fuel-related fare increases.

Steady

U.S. transborder flying

The U.S. portfolio is vital. Its profit risk is tied to the Delta joint cooperation agreement and Department of Transportation route actions.

Option

Loyalty and co-brand cards

Co-brand credit card partnerships deepen customer ties and generate revenue outside of direct ticket sales.

Option

Cargo on passenger flights

Cargo adds revenue on passenger flights. Regulators have proposed restrictions on cargo carried on passenger services to the U.S.

04 Business segments

International drives the mix

International70%modest
Domestic Mexico30%flat

Mix reflects management commentary that international markets account for roughly 70% of revenue. Domestic Mexico is shown as the balance.

05 Risk factors

What could break the thesis

Delta antitrust immunity loss

High impact · Medium odds

The U.S. Department of Transportation moved to end antitrust immunity for the Delta joint cooperation agreement. Oral arguments were held at the Eleventh Circuit in June 2026. If the airline loses, it could face weaker economics on U.S. routes.

We watchEleventh Circuit ruling in the Delta appeal.

New U.S. route and cargo limits

High impact · Medium odds

Regulators disapproved certain scheduled U.S. services by Mexican air carriers and proposed limits on carrying cargo on passenger flights to the U.S. These actions could shrink revenue opportunities.

We watchFinal Department of Transportation orders on scheduled services and cargo.

LEAP-1B engine removals

Medium impact · High odds

Aeromexico found early deterioration in engine blades on certain LEAP-1B engines. It expects about 195 inspections and 33 removals in 2026, which reduces aircraft availability and raises maintenance costs.

We watchActual 2026 engine removals versus the expected 33.

Fuel recapture falls short

Medium impact · Medium odds

Jet fuel spikes hit margins before airlines can lift fares. Aeromexico reached a 70% recapture rate in the second quarter. If domestic demand stays weak, the path to full recapture could slip.

We watchQuarterly fuel recapture commentary and unit revenue trends.

Peso and labor cost pressure

Medium impact · Medium odds

A strong Mexican peso raises peso-denominated costs. Labor costs are also rising as collective bargaining agreement increases flow through the income statement.

We watchEx-fuel unit cost trends and management comments on the peso.
06 Quick answers

In one breath

Why is Aeromexico considered a premium airline?

Aeromexico is a full-service carrier with premium cabins, loyalty programs, and a large international network. Premium revenue is a record 43% of passenger revenue.

Why does the Delta partnership matter so much?

The Delta agreement helps the airlines coordinate pricing, schedules, and revenue sharing on U.S.-Mexico routes. If antitrust immunity is lost, Aeromexico could face weaker economics in an important market.

What is fuel recapture?

Fuel recapture means passing higher fuel costs into ticket prices. Aeromexico says international markets are better at this than domestic Mexico.

What should investors watch next?

The main items are the Eleventh Circuit ruling on the Delta partnership, final U.S. regulatory decisions, engine removal counts, and whether fuel recapture reaches management targets.

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