6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO SECTION 13A-16 OR 15D-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of October 2025

CommissionFile Number: 001-41169

Vertical Aerospace Ltd.

(Exact Name of Registrant as Specified in ItsCharter)

Unit 1 Camwal Court, Chapel Street

Bristol BS2 0UW

United Kingdom

(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  ¨

INFORMATIONCONTAINED IN THIS REPORT ON FORM 6-K

As at September 30, 2025, Vertical Aerospace Ltd. (the “Company") had cash and cash equivalents totaling approximately £92 million ($123 million) on hand.

Preliminary Financial Data

The September 30, 2025 information is preliminary, based on informationavailable to management as of the date of this report and subject to adjustment and has been prepared by, and is the responsibility of,the Company’s management and is based on a number of assumptions. PricewaterhouseCoopers LLP has not audited, reviewed, compiled,or applied agreed-upon procedures with respect to the preliminary financial data. Accordingly, PricewaterhouseCoopers LLP does not expressan opinion or any other form of assurance with respect thereto.

INCORPORATION BY REFERENCE

The information included in this Report on Form 6-K is hereby incorporated by reference into the Company’s Registration Statements on Form F-3 (File No. 333-270756, File No. 333-284763 and File No. 333-287207) (including any prospectuses forming a part of such registration statements) and to be a part thereof from the date on which this Report on Form 6-K is filed, to the extent not superseded by documents or reports subsequently filed or furnished.

SIGNATURES

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