6-K - CAAP - Equibles

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20546

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUERPURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGEACT OF 1934

For the month of January, 2026

Commission File Number: 333-221916

Corporación América AirportsS.A.

(Name of Registrant)

128, Boulevard de la PétrusseL-2330 LuxembourgTel: +35226258274(Address of Principal Executive Office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F x       Form 40-F ¨

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ¨

Note: Regulation S-T Rule 101(b)(1) only permits the submission in paper of a Form 6-K if submitted solely to provide an attached annual report to security holders.

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ¨

Note: Regulation S-T Rule 101(b)(7) only permits the submission in paper of a Form 6-K if submitted to furnish a report or other document that the registrant foreign private issuer must furnish and make public under the laws of the jurisdiction in which the registrant is incorporated, domiciled or legally organized (the registrant’s “home country”), or under the rules of the home country exchange on which the registrant’s securities are traded, as long as the report or other document is not a press release, is not required to be and has not been distributed to the registrant’s security holders, and, if discussing a material event, has already been the subject of a Form 6-K submission or other Commission filing on EDGAR.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: January 23, 2026

Corporación America Airports<br> S.A.
By:	/s/ Andres Zenarruza
Name: Andres Zenarruza
Title: Head of Legal & Compliance
By:	/s/ Jorge Arruda
Name: Jorge Arruda
Title: Chief Financial Officer

Exhibit Index

Exhibit No.	Description
99.1	Press release dated January 23, 2026 - Corporación América Airports S.A. Announces an Amendment of the Armenia International Airports Concession Agreement.

Exhibit 99.1

Corporación AméricaAirports Announces an Amendment of the Armenia International Airports Concession Agreement

Contract term extended by 35 years, through December 2067

Commitment to submit a $425 million Master Plan by January 31, 2026

Luxembourg, January 23, 2026 —Corporación América Airports S.A. (NYSE: CAAP), (“CAAP” or the “Company”), one of the world’s leading private airport operators, announced today that its subsidiary Armenia International Airports CJSC (“AIA”), the operator of Zvartnots and Gyumri Shirak International Airports in Yerevan, Armenia, has entered into an amendment agreement with the Government of the Republic of Armenia (“GOA”) to amend certain terms of the existing concession agreement originally signed on December 17, 2001.

Key changes to the concession agreement include:

1.	Term. The concession term has<br> been extended by 35 years through December 31, 2067. The amended agreement further provides<br> for the possibility to discuss potential future extensions, subject to mutual agreement.
2.	Transition to an inflation-based regime. The amendment replaces the former single-till framework with an inflation-based<br> regime, providing for annual tariff adjustments starting in April 2027.
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3.	New Master Plan and capital investment program. Pursuant to the terms of the amendment agreement, AIA shall submit a new Master<br> Plan by January 31, 2026, including a capital investment program of $425 million to<br> be executed by 2033, covering infrastructure development, operational enhancements, and long-term<br> capacity at Zvartnots International Airport. The Master Plan shall be updated every five<br> years thereafter.
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4.	Economic equilibrium and rebalancing mechanisms. The amendment introduces an economic equilibrium rebalance framework, providing<br> for compensation mechanisms in the event of:
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a.	force majeure events;
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b.	passenger traffic declines below certain<br> thresholds;
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c.	any additional regulatory or tax changes<br> affecting the concession’s financial balance; and
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d.	additional capital investments approved<br> by GOA beyond the agreed investment program.
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The compensation mechanism may be given via tariff adjustments and/or extensions of the concession term.

5.	Airport charges and tariff adjustment framework. The agreement establishes that AIA has the right to adjust all tariffs set<br> in Euros, staring in April 2027, by a parametric formula considering the inflation indices<br> in Armenia, the United States, and the European Union, as well as the applicable exchange<br> rates.
6.	Other provisions. Among other<br> things, the amended agreement also (i) updates and clarifies AIA’s exclusive rights<br> to operate and commercially exploit a broad range of aeronautical and non-aeronautical activities<br> at the airport, including logistics platforms, free economic zones, and future vertiport<br> infrastructure for eVTOL operations, and (ii) refines the termination and indemnification<br> mechanisms applicable under various scenarios.
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Airport charges and tariff adjustment framework. The agreement establishes that AIA has the right to adjust all tariffs set in Euros, staring in April 2027, by a parametric formula considering the inflation indices in Armenia, the United States, and the European Union, as well as the applicable exchange rates.

Other provisions. Among other things, the amended agreement also (i) updates and clarifies AIA’s exclusive rights to operate and commercially exploit a broad range of aeronautical and non-aeronautical activities at the airport, including logistics platforms, free economic zones, and future vertiport infrastructure for eVTOL operations, and (ii) refines the termination and indemnification mechanisms applicable under various scenarios.

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Mr. Martín Eurnekian, CEO of Corporación America Airports, noted: “This amendment, including the material extension of 35 years, represents an important milestone forour concession in Armenia and is a testament of the high-quality operational standards of CAAP. The updated regime enhances long-termvisibility, provides certain protections to preserve the economic equilibrium of the concession, and establishes a clear tariff adjustmentmechanism, supporting our continued commitment to the development and modernization of Armenia’s airport infrastructure. Finally,it also crystalizes a major strategic objective for the Company and demonstrates our ability to create value to our shareholders, whilematerially extending the average life of our portfolio.”

About Corporación América Airports

Corporación América Airports acquires, develops and operates airport concessions. Currently, the Company operates 52 airports in 6 countries across Latin America and Europe (Argentina, Brazil, Uruguay, Ecuador, Armenia and Italy). In 2025, Corporación América Airports served 86.7 million passengers, 9.8% above the 79.0 million passengers served in 2024. The Company is listed on the New York Stock Exchange where it trades under the ticker “CAAP”. For more information, visit http://investors.corporacionamericaairports.com.

Investor Relations Contact

Patricio Iñaki Esnaola

Email: patricio.esnaola@caairports.com

Phone: +5411 4899-6716