Transaction in Own Shares.

International Consolidated Airlines Group, S.A.
(the "Company" or "IAG")
Transaction in Own Shares

IAG announces that from 26 May 2026 to 29 May 2026 it purchased a total of 2,943,849 ordinary shares of €0.10 each in the capital of the Company.  

The purchases were made pursuant to the €500 million share buyback programme (the "Programme") announced on 15 May 2026. Shares acquired pursuant to the Programme will be held in treasury, subject to the approval of their cancellation at IAG's Annual General Meeting.

Following the purchases, the Company holds 158,951,371 treasury shares and the Company's issued share capital (excluding shares held as treasury shares) consists of 4,452,718,156 shares.

The Company's issued share capital is 4,611,669,527 shares. This figure may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the Company to the Spanish National Securities Market commission (CNMV).

In accordance with Article 5(1)(b) of Regulation (EU) No 596/2014 (the Market Abuse Regulation), or, as the case may be, under any equivalent law or regulation applicable in the United Kingdom, a full breakdown of the individual trades made by Morgan Stanley Europe SE (or any of its delegates) on behalf of Company (acting as riskless principal and not as agent) as part of the share repurchase programme can be found at:

http://www.rns-pdf.londonstockexchange.com/rns/5071G_1-2026-6-1.pdf

IAG Company Secretariat

01 June 2026

LEI: 959800TZHQRUSH1ESL13