Exhibit 99.1 

CORPORACION AMERICA AIRPORTS REPORTS SECOND QUARTER 2026 RESULTS

Revenue ex-IFRIC 12 Increased 8.2% YoY on Strong Aeronautical and Commercial Revenue Growth

Adjusted EBITDA ex-IFRIC 12 of $160.3 Million, Down 4.5% YoY, as Double-Digit Growth Across Four Markets Partially
Offset Lower Results in Argentina and Uruguay

Strong Financial Position with $692 Million in Cash & Cash Equivalents and Net Debt to LTM Adj. EBITDA of 0.5x

Luxembourg, August 18, 2026— Corporación América Airports S.A. (NYSE: CAAP), (“CAAP” or the “Company”) one of the leading private airport operators in the world, reported today its unaudited, consolidated results for the three and six-month period ended June 30, 2026. Financial results are expressed in millions of U.S. dollars and are prepared in accordance with International Financial Reporting Standards (IFRS) as issued by the International Accounting Standards Board (“IASB”).

Commencing 3Q18, the Company began reporting results of its Argentinean subsidiaries applying Hyperinflation Accounting, in accordance with IFRS rule IAS 29 (“IAS 29”), as detailed in Section “Hyperinflation Accounting in Argentina” on page 25.

Second Quarter 2026 Highlights

CEO Message

Commenting on the results for the quarter Mr. Martín Eurnekian, CEO of Corporación América Airports, noted: “We delivered a solid operating performance in the second quarter, with total passenger traffic remaining largely stable at 20.6 million passengers, as broad-based growth across our portfolio helped mitigate the domestic decrease in Argentina. Revenue excluding Construction services continued to outpace traffic growth, rising 8% year-over-year, supported by solid performance in both our aeronautical and commercial businesses. Revenue per passenger increased nearly 9%, with every country in which we operate contributing to this improvement, including Argentina.

Consolidated Adjusted EBITDA excluding IFRIC 12 reached $160 million, down 4.5% year-over-year. Profitability was affected by headwinds in Argentina and, to a lesser extent, non-recurring costs and expenses in Uruguay. In Argentina, results were primarily impacted by the reduction in Flybondi´s operating fleet, and a challenging comparison base for cargo revenues in 2Q25.By contrast, Italy, Brazil, Armenia and Ecuador each delivered double-digit year-on-year EBITDA growth, highlighting the strength of the diversification of our portfolio.

Our financial position strengthened further, with cash and cash equivalents increasing to $692 million at quarter-end and net leverage at 0.5x. These metrics reflect continued cash generation, debt repayments and disciplined financial management, providing us with flexibility to execute our strategic priorities and pursue our acquisition strategy.

We remain focused on advancing our strategic priorities centered on expanding passenger traffic volume, commercial activities, as well as revenue per passenger across the portfolio. Key initiatives include the ongoing concession rebalancing process in Argentina, efforts to obtain final approval for the Florence Airport Master Plan, the opening of a new VIP Lounge and expansion of the Duty-Free area in Montevideo, as well as various initiatives in connection with our cargo business in Argentina. At the same time, we continue to work hard on potential new concessions across the Americas, Africa and the Middle East.

Looking ahead, new routes, additional frequencies and growing inbound demand are expected to support international traffic in Argentina during the second half of the year, although domestic airline capacity constraints, planned runway maintenance, and challenging comparison base for cargo revenues may continue to weigh on the country’s near-term reported results.

In Uruguay, revenues associated with the new ILS system beginning in August, together with the opening of a new VIP lounge, new cargo business initiatives and healthy traffic trends, are expected to support revenue growth.

Finally, I am pleased to announce that our Board approved the payment of cash dividends for a total of $150 million to be paid during 2026. This decision takes into account several key considerations, including shareholder returns, maintaining financial strength, preserving adequate cash balances at each operating company to support their strategic objectives, and maintaining sufficient liquidity at CAAP to pursue future growth opportunities. We remain committed to financial discipline and focused on creating long-term value for our shareholders.”

Operating & Financial Highlights

(In millions of U.S. dollars, unless otherwise noted)

Note: Figures in historical dollars (ex-IAS29) are included for comparison purposes.

Operating & Financial Highlights

(In millions of U.S. dollars, unless otherwise noted)

Note: Figures in historical dollars (excluding IAS29) are included for comparison purposes.

2Q26 Operating Performance

Passenger Traffic

Total passenger traffic decreased slightly by 0.6% YoY to 20.6 million passengers, as growth in the international segment was more than offset by a decline in domestic travel. Domestic traffic declined by 8.1% YoY, primarily due to lower traffic in Argentina. International traffic increased by 5.9% YoY, with all countries of operation posting positive YoY growth except Brazil, where international passenger accounts for less than 5% of total passenger traffic. International traffic remained strong across most countries, including double-digit YoY growth in Armenia.

In Argentina, passenger traffic decreased by 6.2% YoY, as growth in international traffic was more than offset by a decline in domestic travel. Domestic traffic declined by 11.6% YoY, primarily due to reduced capacity at Flybondi, which operated with approximately 30% of its originally scheduled fleet for much of the quarter, and at JetSMART, which also experienced lower activity due to scheduled maintenance. Likewise, Aerolíneas Argentinas operated with lower capacity during June following fuel price increases. Bariloche, Córdoba, Iguazú, and Mendoza ranked among the top domestic destinations during the second quarter. International passenger traffic increased by 4.0% YoY, supported by strong growth in seat capacity, particularly during April and May. Argentina recorded the highest growth in seat capacity among South American countries during the first half of 2026. Among other developments, Arajet announced a new Mendoza–Punta Cana route with three weekly frequencies, while Plus Ultra launched a new Madrid–Ezeiza route with two weekly frequencies, which commenced operations on July 2. June traffic was also affected by the FIFA World Cup, which temporarily dampened leisure and business travel as some passengers postponed or adjusted their travel plans. The top international destinations during the quarter were Santiago de Chile, São Paulo, Madrid, and Rio de Janeiro.

In Italy, passenger traffic increased by 5.3% YoY, primarily driven by strong performance in the international segment, which accounted for more than 80% of total traffic and grew by 6.4% YoY. International traffic was supported by growth of 8.0% at Pisa Airport and 4.2% at Florence Airport. Domestic traffic increased slightly by 0.7% YoY, with both airports contributing positively to the overall result.

In Brazil, total passenger traffic increased by 4.2% YoY, reflecting improving traffic trends following a prolonged period of challenges in the aviation sector. Domestic traffic, which accounted for more than 50% of total traffic, declined slightly by 1.2% YoY, while transit passenger traffic increased by 14.3% YoY. Brasília International Airport continued to benefit from its role as a key secondary hub within Brazil's domestic network.

In Uruguay, where traffic is predominantly international, total passenger traffic increased by 2.0% YoY, although growth was negatively affected by the calendar shift of the Easter holidays. Among other developments, Azul Linhas Aéreas Brasileiras launched a new Montevideo–Belo Horizonte route with two weekly frequencies.

In Ecuador, passenger traffic increased by 2.3% YoY despite ongoing public security concerns. International traffic increased by 8.3% YoY, primarily supported by strong demand on routes to the U.S., new services launched by Avianca, JetBlue, and LATAM Airlines, as well as additional frequencies operated by American Airlines. Domestic traffic, however, declined by 3.1% YoY, as elevated airfares continued to weigh on demand.

In Armenia, passenger traffic increased by 12.7% YoY despite disruptions related to the conflict in Iran, which resulted in flight cancellations and airspace restrictions across the region. The impact was more limited than initially expected, as strong demand from Western and Eastern Europe, Asia, and Russia continued to support overall traffic growth. The addition of new airlines and routes, increased flight frequencies, and the launch of the new Wizz Air base at Zvartnots International Airport in late 2025 continued to support the airport's strong performance.

Cargo Volume

Cargo volume decreased by 1.5% YoY, reflecting declines across all countries of operation except Argentina. Performance by country was as follows: Argentina (+3.6%), Armenia (-3.4%), Brazil (-10.0%), Ecuador (-10.9%), Uruguay (-0.4%), and Italy (-11.5%). Argentina, Brazil, and Uruguay together accounted for nearly 80% of total cargo volume during the quarter.

Aircraft Movements

Total aircraft movements decreased by 2.6% YoY, as increases in Armenia, Italy, and Brazil were more than offset by declines in Argentina, Uruguay, and Ecuador. Performance by country was as follows: Armenia (+8.2%), Italy (+3.1%), Brazil (+1.7%), Uruguay (-8.7%), Argentina (-6.2%), and Ecuador (-1.4%). Argentina, Brazil, and Italy together accounted for over 80% of total aircraft movements during the quarter.

Tables with detailed passenger traffic, cargo volume and aircraft movement information for each airport can be found on page 38 of this report.

Operational Statistics: Passenger Traffic, Cargo Volume and Aircraft Movements

Review of Consolidated Results

Results for ECOGAL, which operates the Galapagos Airport in Ecuador, are accounted for under the equity method.

Revenues

Consolidated revenues increased by 12.0% YoY to $534.0 million. Excluding Construction Services and the impact of IAS 29, revenues increased by 8.4% YoY to $475.4 million, despite a 0.6% decline in passenger traffic. Revenue ex-IFRIC12 growth reflected positive contributions from every country of operations except Argentina, with Armenia and Brazil delivering double-digit increases. Both aeronautical and commercial revenues contributed to the increase, which also benefited from the appreciation of local currencies.

The following table provides a breakdown of revenue performance by country. Further details on the performance of CAAP´s countries of operation can be found on page 13.

Revenues by Segment (in US$ million)

1 Only includes Guayaquil Airport.

2 Excluding Construction Service revenue, ‘As reported’ revenues decreased 5.8% in Argentina (or 5.1% ex-IAS29), and increased 48.5% in Armenia, 8.7% in Italy, 6.0% in Uruguay, 24.8% in Brazil and 9.5% in Ecuador.

Revenue Breakdown (in US$ million)

1 Construction Service revenue equals the construction or upgrade costs plus a reasonable margin.

2 Excludes Construction Service revenue.

Aeronautical Revenues accounted for 43.3% of total revenues, increasing by 3.7% YoY to $231.2 million, or by 4.0% YoY to $234.0 million excluding the impact of IAS 29. This performance was supported by positive contributions from all countries of operation except Argentina, where aeronautical revenues declined by 1.6%, outperforming the 6.2% decline in passenger traffic, supported by continued growth in international traffic. Brazil, Italy, Armenia, and Ecuador delivered strong results, with aeronautical revenues increasing by 26.0%, 12.3%, 8.3%, and 8.1%, respectively, all exceeding passenger traffic growth. Uruguay also reported a 5.3% increase, outperforming passenger traffic growth. Tariff increases in Brazil, Uruguay, and Ecuador further supported aeronautical revenue growth.

Non-Aeronautical Revenues accounted for 56.7% of total revenues, increasing by 19.3% YoY to $302.9 million, or by 20.0% YoY to $308.0 million excluding the impact of IAS 29. Commercial revenues increased by 13.2% YoY, or by 13.5% excluding IAS 29, primarily driven by strong contributions from fuel-related revenues in Armenia, together with improved performance across VIP lounge, space rentals, food and beverage, and duty-free operations. Growth in advertising and retail stores also contributed to this performance. All countries of operation posted commercial revenue growth except Argentina, where lower cargo, parking, VIP lounge, and duty-free revenues more than offset growth in other commercial revenue streams. Meanwhile, Construction service revenues increased by 52.2% YoY, or by 54.7% excluding IAS 29, mainly reflecting higher capital expenditure levels across most countries during the period.

Operating Costs and Expenses

In 2Q26, Total costs and expenses, excluding Construction service costs, increased by 15.6% YoY, or by 16.0% to $347.2 million excluding the impact of IAS 29. The increase was primarily driven by higher Fuel costs in Armenia, along with higher Salaries and social security contributions, mainly in Argentina. Higher SG&A expenses also contributed to the overall increase in costs.

Operating costs and expenses were also affected by the appreciation of local currencies in real terms, as inflation in Argentina and Uruguay outpaced the depreciation of their respective currencies against the U.S. dollar, resulting in higher local-currency-denominated operating costs when translated into U.S. dollar terms.

Cost of Services rose by 19.5% YoY, or 20.7% to $342.6 million when ex-IAS29, mainly as a result of the following increases (ex-IAS29):

These increases were partially offset by lower Office expenses and Depreciation and amortization. Excluding Construction service costs, Cost of services increased by 14.0% YoY, or by 14.2% to $278.9 million excluding the impact of IAS 29, primarily reflecting the aforementioned increases in Fuel costs and Salaries and social security contributions.

Selling, General, and Administrative Expenses (“SG&A”) increased by 21.1% YoY to $64.5 million in 2Q26. Excluding the impact of IAS 29, SG&A expenses rose by 21.8% YoY to $64.5 million, mainly reflecting higher Salaries and social security contributions, as well as increased Taxes, and Services and fees.

Other expenses increased to $4.0 million in 2Q26, from $2.3 million in 2Q25.

Costs and Expenses (in US$ million)

Adjusted EBITDA and Adjusted EBITDA excluding Construction Service

In 2Q26, CAAP reported Adjusted EBITDA of $163.2 million and Adjusted EBITDA ex-IFRIC 12 of $160.3 million, down 4.5% YoY from $167.9 million in 2Q25. Excluding the impact of IAS 29 in Argentina, Adjusted EBITDA ex-IFRIC 12 declined by 4.3% YoY to $161.3 million.

This performance was primarily driven by a 20.5% YoY decline in Adjusted EBITDA ex-IFRIC 12 in Argentina (20.0% excluding IAS 29) and, to a lesser extent, a 16.3% decline in Uruguay, partially offset by double-digit growth in Armenia, Brazil, Italy, and Ecuador.

The decline in Argentina primarily reflected lower passenger traffic, reduced cargo revenues against a difficult YoY comparison base, and lower commercial revenues associated with the decline in traffic. The YoY comparison for Cargo revenues was affected by labor disruptions at Customs in April 2025, which resulted in longer cargo storage periods and exceptionally high storage revenues. In addition, lower average cargo dwell times, reflecting more efficient customs clearance processes, further reduced storage revenues. On the cost side, operating costs and expenses increased, reflecting the appreciation of the Argentine peso in real terms, as inflation outpaced the depreciation of the peso against the U.S. dollar, increasing local-currency-denominated operating costs in U.S. dollar terms.

Adjusted EBITDA margin ex-IFRIC 12 contracted by 4.5 percentage points to 34.1%, compared to 38.6% in 2Q25. Excluding the impact of IAS 29 in Argentina, Adjusted EBITDA margin ex-IFRIC 12 also contracted by 4.5 percentage points, from 38.4% in 2Q25 to 33.9% in 2Q26, primarily reflecting margin contraction in Argentina, Uruguay, and Armenia, partially offset by margin expansion in Italy, Brazil, and Ecuador.

Margin contraction in Argentina reflected the lower passenger traffic, reduced cargo and commercial revenues, and higher operating costs discussed above. In Uruguay, margins were also affected by the appreciation of the Uruguayan peso in real terms, as inflation outpaced the depreciation of the peso against the U.S. dollar, increasing local-currency-denominated operating costs in U.S. dollar terms. In Armenia, margin contraction primarily reflected the growing contribution from the fuel business, which carries structurally lower margins than core airport operations and therefore diluted the country’s overall margin.

Adjusted EBITDA by Segment (in US$ million)

Adjusted EBITDA Reconciliation to Income from Continuing Operations (in US$ million)

Financial Income and Loss

CAAP reported a Net financial loss of $42.6 million in 2Q26, compared with a net financial loss of $55.1 million in 2Q25. The year-over-year improvement primarily reflected higher foreign exchange gains in Argentina, driven by the real appreciation of the Argentine peso and its impact on the Company's net monetary liability position, as well as lower net interest expense. Excluding the impact of IAS 29, CAAP reported a net financial loss of $63.9 million in 2Q26, compared with a net financial loss of $81.3 million in the same period of 2025.

See “Use of Non-IFRS Financial Measures” on page 25.

Income Tax Expense

During 2Q26, the Company reported an Income Tax Expense of $8.0 million, compared to an expense of $10.1 million in 2Q25. Excluding the impact of IAS 29, income tax expense totaled $11.5 million in 2Q26, compared with an income tax benefit of $2.7 million in the year-ago quarter.

Net Income and Net Income Attributable to Owners of the Parent

During 2Q26, CAAP reported net income of $53.5 million, compared with $51.5 million in 2Q25. The year-over-year improvement reflected favorable financial and tax results, including higher foreign exchange gains in Argentina and lower net interest and income tax expenses, which more than offset the decline in operating income.

In 2Q26, the Company reported Net Income Attributed to Owners of the Parent of $52.8 million and earnings per common share of $0.32, compared with Net Income Attributable to Owners of the Parent of $49.3 million in 2Q25, equivalent to earnings per common share of $0.30.

Consolidated Financial Position

As of June 30, 2026, Cash and cash equivalents totaled $692.5 million, increasing 3.9% from the $666.2 million reported as of March 31, 2026, and 16.8% from the $592.8 million reported as of December 31, 2025. Total liquidity, which includes Cash and cash equivalents as well as other current financial assets, increased to $860.8 million, up from $772.4 million as of March 31, 2026, and $714.8 million as of December 31, 2025.

Total debt declined 2.0%, or $21.7 million, to $1,073.5 million as of June 30, 2026, compared with $1,095.2 million as of December 31, 2025, primarily reflecting debt repayments in Argentina. A total of $757.4 million, or 70.6% of total debt is denominated in U.S. dollars, while $173.3 million, or 16.1% is denominated in Brazilian Reals, and $142.8 million, or 13.3%, is in Euros.

The Net Debt to LTM Adjusted EBITDA ratio improved to 0.5x as of June 30, 2026, from 0.7x as of December 31, 2025. This reduction reflected lower net debt, driven by gross debt repayments and increased cash balances, as well as higher LTM Adjusted EBITDA. No impairments to intangible assets were recorded over the past twelve months. As a result, the net debt to LTM Adjusted EBITDA ratio excluding intangible assets also stood at 0.5x. All CAAP subsidiaries remained in full compliance with their financial covenants as of June 30, 2026.

Consolidated Debt Indicators (in US$ million)

1 The Total Debt to EBITDA Ratio is calculated as CAAP’s interest-bearing liabilities divided by its EBITDA.

2 The Total Net Debt to EBITDA Ratio is calculated as CAAP’s interest-bearing liabilities minus Cash & Cash Equivalents, divided by its EBITDA.

3 The Total Net Debt is calculated as Total Debt minus Cash & Cash Equivalents.

4 LTM Adjusted EBITDA as of June 30, 2026, was $805.5 million.

5 LTM Adjusted EBITDA excluding impairment of intangible assets as of June 30, 2026, was $805.8 million.

Total Debt by Segment (in US$ million)

¹ Of which approximately $125.8 million remain at Toscana Aeroporti level.

² Of which approximately $237.2 million remain at ACI Airport Sudamérica SAU.

Maturity of borrowings:

¹ The amounts disclosed in the table are undiscounted cash flows of principal and estimated interest. Variable interest rate cash flows have been estimated using variable interest rates applicable at the end of the reporting period.

Maturity of borrowings – Breakdown by segment (in USD) as of June 30, 2026:

Cash & Cash Equivalent by Segment (in US$ million)

¹ At Inframérica Concessionaria do Aeroporto de Brasilia level.

CAPEX

During 2Q26, CAAP made capital expenditures of $67.0 million, a 39.7% YoY increase from $47.9 million in 2Q25. Capital expenditures ex-IAS 29, amounted to $70.3 million in the quarter, with Argentina, Italy and Uruguay accounting for 59%, 19% and 13%, respectively.

Review of Segment Results

Argentina

Starting in 3Q18, reported numbers are presented applying Hyperinflation accounting for the Company’s Argentinean subsidiaries, in accordance with IAS 29, as explained above. The following table presents the impact from Hyperinflation accounting under the column ‘IAS 29’, while the columns indicated with “ex IAS 29” present results calculated without the impact from Hyperinflation accounting. The impact of IAS 29 is presented only for Aeropuertos Argentina (AA), the Company’s largest subsidiary in Argentina, which accounted for over 95% of passenger traffic, revenues and Adjusted EBITDA of the Argentina segment in 2Q26.