EXHIBIT 21.1

Subsidiaries of Spirit AeroSystems Holdings, Inc. - Delaware

Spirit AeroSystems, Inc. - Delaware

Spirit AeroSystems Finance, Inc. - Delaware

Subsidiaries of Spirit AeroSystems, Inc. - Delaware

Spirit AeroSystems International Holdings, Inc. - Delaware

Spirit AeroSystems Operations International, Inc. - Delaware

Spirit AeroSystems North Carolina, Inc. - North Carolina

Spirit AeroSystems Innovative Solutions, Inc. - Delaware

Fiber Materials Inc. - Delaware - Acquired 1/10/2020

Subsidiaries of Fiber Materials Inc. - Delaware

Intermat - Maine - Acquired 1/10/2020

Subsidiaries of Spirit AeroSystems International Holdings, Inc.

Spirit AeroSystems Malaysia Sdn Bhd - Malaysia

Spirit AeroSystems Singapore Pte. Ltd. - Singapore

Spirit AeroSystems Investco, LLC - Delaware

Spirit AeroSystems Canada, Ltd. - Canada

Spirit AeroSystems Taiwan Inc. - Taiwan

Spirit AeroSystems Global Investments B.V. - Netherlands

Subsidiaries of Spirit AeroSystems Global Investments, B.V.- Netherlands

Spirit AeroSystems Global Holdings Limited - United Kingdom

Spirit AeroSystems France SARL - France

Subsidiaries of Spirit AeroSystems Global Holdings Limited - United Kingdom

Spirit AeroSystems Belgium Holdings BVBA - Belgium

Spirit AeroSystems (Europe) Limited - United Kingdom

Subsidiaries of Spirit AeroSystems (Europe) Limited - United Kingdom

Spirit AeroSystems (Hangzhou) Enterprise Management Consulting Co., Ltd. - China