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Exhibit 23.1

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Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the registration statements (Nos. 333-191915, 333-214445, 333-219376, 333-249400, and 333-274705) on Form S-8 of our reports dated July 21, 2025, with respect to the consolidated financial statements of AAR CORP. and the effectiveness of internal control over financial reporting.

/s/ KPMG LLP

Chicago, Illinois
July 21, 2025

KPMG LLP, a Delaware limited liability partnership and a member firm of
the KPMG global organization of independent member firms affiliated with
KPMG International Limited, a private English company limited by guarantee.