ASUR Announces Total Passenger Traffic for September 2026

ASUR’s September traffic was flat, with Mexico showing the steepest declines.

What the company is saying

Grupo Aeroportuario del Sureste (NYSE:ASR) reports that total passenger traffic for September 2026 was 8,656,117, essentially unchanged from September 2025. The company highlights that this is the first full month including operations from Brazil, Costa Rica, Curacao, and Ecuador after acquiring CPC Aeroportos, which contributed 3,924,970 passengers. ASUR emphasizes regional variation: Colombia (+5.7%), Puerto Rico (+3.1%), Brazil (+2.6%), and Ecuador (+1.7%) saw year-on-year growth, while Costa Rica (-6.1%), Curacao (-0.9%), and especially Mexico (-6.1%) declined. The narrative points to mixed trends, with domestic and international splits detailed for each country. The company notes that Mexico’s domestic and international traffic fell 3.7% and 9.8%, respectively, while Colombia saw both segments rise. No forward-looking statements or executive commentary are included; the tone is factual and data-driven.

What the data suggests

The disclosed figures show total September 2026 passenger traffic at 8,656,117, nearly flat versus 8,659,156 a year earlier. Year-to-date, total traffic declined 0.7% to 57,151,121 from 57,532,457. Mexico, ASUR’s largest market, posted a 6.1% year-on-year drop in September (2,446,399 vs. 2,605,717) and a 3.1% year-to-date decline (29,534,119 vs. 30,481,397). Mexico’s international segment fell 9.8% in September (929,700 vs. 1,030,940). Colombia delivered the strongest growth, up 5.7% in September (1,474,663 vs. 1,395,261) and 6.5% year-to-date (13,459,376 vs. 12,635,396), with domestic and international segments both rising. Puerto Rico’s traffic grew 3.1% in September but is down 2.9% year-to-date. Brazil and Others saw a 1.4% year-to-date increase (3,924,970 vs. 3,872,332), with Brazil’s domestic segment up 2.9% but international down 11.5%. The data confirms that growth in Colombia and Brazil was not enough to offset declines in Mexico and other regions, resulting in a slight overall contraction. The company’s reporting is detailed and transparent, but some regional splits are only summarized, not fully itemized.

Analysis

The announcement is a factual, data-driven monthly and year-to-date passenger traffic report with no promotional or exaggerated language. All claims are realised and supported by disclosed numerical data, with no forward-looking projections or aspirational statements. The only reference to capital intensity is the mention of the recent acquisition of CPC Aeroportos, but this is presented as a completed event, not as a future benefit or risk. There is no attempt to frame the results as better than they are; in fact, the report transparently discloses both increases and decreases in traffic across regions, including notable declines in Mexico and overall year-to-date figures. No profitability, revenue, or synergy claims are made, and there is no narrative inflation or attempt to bridge operational data to future financial performance. The tone is strictly neutral and operational.

Risk flags

• ●Mexico’s 6.1% year-on-year September traffic decline and 3.1% year-to-date drop represent a material risk, as this is ASUR’s largest and most profitable market. Prolonged weakness here could pressure group financials.
• ●International traffic in Mexico fell 9.8% in September, suggesting exposure to tourism or cross-border travel volatility. If this trend persists, it could further erode revenue mix and margins.
• ●The integration of newly acquired assets in Brazil, Costa Rica, Curacao, and Ecuador introduces operational complexity. While the first full month’s data is included, there is no disclosure on integration costs, synergies, or operational challenges, leaving uncertainty around future performance.
• ●Puerto Rico’s year-to-date passenger traffic is down 2.9%, which, if sustained, could weigh on consolidated results given its scale within ASUR’s portfolio.

Bottom line

ASUR’s September 2026 traffic report shows stagnation at the group level, with 8.6 million passengers matching the prior year. Mexico, the company’s largest market, is underperforming with a 6.1% September drop and a 3.1% year-to-date decline, including a sharp 9.8% fall in international traffic. Colombia and Brazil delivered moderate growth, but not enough to offset Mexico’s weakness. The first full month of results from the CPC Aeroportos acquisition is now incorporated, but there is no evidence yet of a step-change in group performance. The company provides granular, credible data but omits commentary on integration progress or financial impact from new assets. Investors should focus on Mexico’s ongoing softness and watch for any signs of recovery or further deterioration in upcoming quarters. The key takeaway: regional growth is being outweighed by declines in the core Mexican market, and the acquisition’s benefits are not yet visible in headline traffic numbers.

Announcement summary

(NYSE:ASR) Grupo Aeroportuario del Sureste, S.A.B. de C.V. (ASUR) reported total passenger traffic for September 2026 reached 8,656,117, essentially unchanged from 8,659,156 in September 2025. The September 2026 figures include the first full month of operations in Brazil, Costa Rica, Curacao, and Ecuador, totaling 3,924,970 passengers, following the acquisition of CPC Aeroportos. Year-on-year, passenger traffic increased by 5.7% in Colombia, 3.1% in Puerto Rico, 2.6% in Brazil, and 1.7% in Ecuador, but decreased by 6.1% in Costa Rica, 0.9% in Curacao, and 6.1% in Mexico. In Colombia, domestic traffic rose 5.9% and international traffic rose 4.9%. Brazil saw a 2.9% increase in domestic traffic but an 11.5% decrease in international traffic. Ecuador's international traffic increased by 3.2%, while Costa Rica's international traffic declined by 6.4% and Curacao's by 1.6%. Domestic traffic in Costa Rica increased 16.3%, in Ecuador by 0.1%, and in Curacao by 8.9%. Puerto Rico's domestic and international traffic increased by 3.4% and 1.1%, respectively. Mexico experienced a 3.7% decrease in domestic traffic and a 9.8% decrease in international traffic. For the year to date, total passenger traffic was 57,151,121, down 0.7% from 57,532,457 in the prior year period. Mexico's year-to-date passenger traffic was 29,534,119, down 3.1% from 30,481,397, with domestic at 14,639,194 and international at 14,894,925. Brazil and Others had year-to-date traffic of 3,924,970, up 1.4% from 3,872,332. San Juan, Puerto Rico, saw year-to-date traffic of 10,232,656, down 2.9% from 10,543,332. Colombia's year-to-date traffic was 13,459,376, up 6.5% from 12,635,396. Total domestic traffic for September 2026 was 6,431,646, up 1.8% from 6,319,585, while international traffic was 2,224,471, down 4.9% from 2,339,571. In Mexico, Cancun airport handled 1,607,088 passengers in September 2026, down 8.6% from 1,758,719 in September 2025. Cozumel saw a 5.4% increase to 35,657 passengers, while Huatulco increased 0.6% to 49,003. In Brazil, Belo Horizonte South Block domestic traffic was 1,029,044, up 6.3%. Foz do Iguacu domestic traffic rose 29.3% to 230,776. In Colombia, Rionegro airport handled 1,177,591 passengers in September 2026, up 4.8% from 1,123,772. Monteria saw a 23.0% increase to 137,368 passengers. San Juan, Puerto Rico, handled 810,085 passengers in September 2026, up 3.1% from 785,846. The report excludes transit and general aviation passengers for Mexico and Colombia, and transit passengers for Brazil, Costa Rica, Ecuador, and Curacao.

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