Aircastle (AYR) 10-Q2021 Q3 Quarterly report

Exhibit 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER

PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED

PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of Aircastle Limited (the “Company”) for the three months ended November 30, 2021, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Michael Inglese, as Chief Executive Officer, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

A signed original of this written statement required by section 906 has been provided to Aircastle Limited and will be retained by Aircastle Limited and furnished to the Securities and Exchange Commission or its staff upon request.