As filed with the Securities and Exchange Commission on April 1, 2026

Registration No. 333-   

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM S-8

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

HONEYWELL INTERNATIONAL INC.

(Exact Name of Registrant as Specified in its Charter)

Honeywell Aerospace 401(k) Plan

Honeywell Aerospace Puerto Rico Savings Plan

(Full Title of the Plans)

Su Ping Lu

Senior Vice President, General Counsel and Corporate Secretary

Honeywell International Inc.

855 S. Mint Street

Charlotte, NC 28202

(704) 627-6200

(Name, Address and Telephone Number, Including Area Code, of Agent for Service)

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with the new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐

EXPLANATORY NOTE

This Registration Statement on Form S-8 (the “Registration Statement”) of Honeywell International Inc. (the “Registrant”) relates to 133,000 shares of the Registrant’s common stock, par value $1.00 per share (“Common Stock”), that may be allocated to participant accounts under the Honeywell Aerospace 401(k) Plan (as may be amended from time to time, the “401(k) Plan”), and 9,000 shares of Common Stock that may be allocated to participant accounts under the Honeywell Aerospace Puerto Rico Savings Plan (as may be amended from time to time, the “Puerto Rico Plan” and, together with the 401(k) Plan, the “Plans”). Pursuant to Rule 416(a) under the Securities Act of 1933, as amended (the “Securities Act”), this Registration Statement shall also cover such indeterminate number of additional shares of Common Stock as may become issuable under the Plans as a result of stock splits, stock dividends or similar transactions.

PART I

INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS

The documents containing the information specified in this Part I will be sent or given to participants in the Plans covered by this Registration Statement as specified by Rule 428(b)(1) under the Securities Act. In accordance with the rules and regulations of the Securities and Exchange Commission (the “Commission”) and the instructions to Form S-8, such documents are not being filed with the Commission as part of this Registration Statement. These documents and the documents incorporated by reference in the Registration Statement pursuant to Item 3 of Part II of this Registration Statement, taken together, constitute a prospectus that meets the requirements of Section 10(a) of the Securities Act.

PART II

INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

The following documents, which have been filed (other than filings or portions of filings that are deemed furnished under applicable Commission rules, rather than filed) by the Registrant with the Commission pursuant to the Securities Exchange Act of 1934, as amended (the “Exchange Act”), are incorporated by reference herein and shall be deemed to be a part hereof:

All documents subsequently filed by the Registrant pursuant to Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act, (other than any such documents or portions thereof that are furnished under Item 2.02 or Item 7.01 of a Current Report on Form 8-K, unless otherwise indicated therein, including any exhibits included with such Items) and prior to the filing of a post-effective amendment to this Registration Statement, which indicates that all securities offered have been sold or which deregisters all securities then remaining unsold, shall be deemed to be incorporated by reference into this Registration Statement and to be a part hereof from the date of filing such documents. Any statement contained in a document incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or superseded for purposes of this Registration Statement to the extent that a statement contained herein or in any other subsequently filed document which also is or is deemed to be incorporated by reference herein modifies or supersedes such statement. Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Registration Statement.

Not Applicable.

Not Applicable.

Section 145 of the Delaware General Corporation Law (the “DGCL”) provides that a corporation may indemnify directors and officers as well as other employees and individuals against expenses (including attorneys’ fees), judgments, fines, and amounts paid in settlement in connection with specified actions, suits, proceedings whether civil, criminal, administrative, or investigative (other than action by or in the right of the corporation—a “derivative action”), if they acted in good faith and in a manner they reasonably believed to be in or not opposed to the best interests of the corporation and, with respect to any criminal action or proceeding, had no reasonable cause to believe their conduct was unlawful. A similar standard is applicable in the case of derivative actions, except that indemnification only extends to expenses (including attorneys’ fees) incurred in connection with the defense or settlement of such action, and the statute requires court approval before there can be any indemnification where the person seeking indemnification has been found liable to the corporation. The DGCL provides that it is not exclusive of other indemnification that may be granted by a corporation’s charter, by-laws, disinterested director vote, shareowner vote, agreement, or otherwise.

Section 102(b)(7) of the DGCL permits a corporation to provide in its certificate of incorporation that a director or officer of the corporation shall not be personally liable to the corporation or its shareowners for monetary damages for breach of fiduciary duty as a director, except for liability for (i) any breach of the director’s duty of loyalty to the corporation or its stockholders, (ii) acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law, (iii) payment of unlawful dividends or unlawful stock purchases or redemptions, or (iv) any transaction from which the director derived an improper personal benefit.

Under Article ELEVENTH of the Registrant’s Amended and Restated Certificate of Incorporation, each person who is or was a director or officer of the Registrant, and each director or officer of the Registrant who serves or served any other enterprise or organization at the request of the Registrant, shall be indemnified by the Registrant to the full extent permitted by the DGCL.

Under the DGCL, to the extent that such a person is successful on the merits or otherwise in defense of a suit or proceeding brought against such person by reason of the fact that such person is or was a director or officer of the Registrant, or serves or served any other enterprise or organization at the request of the Registrant, such person shall be indemnified against expenses (including attorneys’ fees) actually and reasonably incurred in connection with such action.

If unsuccessful in defense of a third-party civil suit or a criminal suit, or if such a suit is settled, such a person shall be indemnified under such law against both (i) expenses (including attorneys’ fees) and (ii) judgments, fines and amounts paid in settlement if such person acted in good faith and in a manner such person reasonably believed to be in, or not opposed to, the best interests of the Registrant, and with respect to any criminal action, had no reasonable cause to believe such person’s conduct was unlawful.

If unsuccessful in defense of a suit brought by or in the right of the Registrant, or if such suit is settled, such a person shall be indemnified under such law only against expenses (including attorneys’ fees) actually and reasonably incurred in the defense or settlement of such suit if such person acted in good faith and in a manner such person reasonably believed to be in, or not opposed to, the best interests of the Registrant except that if such a person is adjudged to be liable in such suit to the Registrant, such person cannot be made whole even for expenses unless the court determines that such person is fairly and reasonably entitled to indemnity for such expenses.

In addition, the Registrant maintains directors’ and officers’ reimbursement and liability insurance pursuant to standard form policies. The risks covered by such policies include certain liabilities under the securities laws.

Not Applicable.

The Registrant undertakes to submit the 401(k) Plan and any amendment thereto to the Internal Revenue Service (“IRS”) in a timely manner and will make all changes required by the IRS in order to qualify the 401(k) Plan.

Pursuant to the instruction to Item 8 of Form S-8, no opinion of counsel as to the legality of the shares of Common Stock registered with respect to the Plans is furnished because no original issuance securities are being registered.

The following exhibits are filed with or incorporated by reference into this registration statement (numbering corresponds to Exhibit Table in Item 6.01 of Regulation S-K).

provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) above do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the Commission by the Registrant pursuant to Section 13 or Section 15(d) of the Exchange Act that are incorporated by reference in this Registration Statement.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized in Charlotte, North Carolina, on April 1, 2026.

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement on Form S-8 has been signed by the following persons in the capacities indicated on April 1, 2026.

Pursuant to the requirements of the Securities Act of 1933, the plan administrator of the Honeywell Aerospace 401(k) Plan has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in Charlotte, North Carolina, on April 1, 2026.

Pursuant to the requirements of the Securities Act of 1933, the plan administrator of the Honeywell Aerospace Puerto Rico Savings Plan has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in Charlotte, North Carolina, on April 1, 2026.

Exhibit 5.1

March 16, 2026

By email: lisa.dooley@honeywell.com

Matthew Ponicall,

Vice President, Total Benefits

Honeywell Aerospace Inc.,

1944 East Sky Harbor Circle North

Phoenix, AZ 85034

Dear Mr. Ponicall:

In accordance with 17 C.F.R. § 229.601(b)(5)(ii)(A), this is confirm that, in my opinion, the Honeywell Aerospace Puerto Rico Savings Plan (the “Plan”) and the trust fund forming part of the Plan, the Honeywell Aerospace Puerto Rico Savings Plan Trust Fund (the “Trust Fund”), are subject to, and properly comply with, the provision of Title I of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”), applicable to individual account plans.

The following facts and circumstances support my opinion:

This opinion is being furnished to you solely for your benefit in connection with the filing by Honeywell International Inc. of a registration statement on Form S-8 (the “Registration Statement”) pursuant to the Securities Act of 1933, as amended, with respect to shares of Honeywell International Inc. common stock, par value $1.00 per share, that may be allocated to participant accounts under the Plan and is not to be used, circulated, quote, relied upon or otherwise referred to for any other purpose, without my prior written consent. I hereby consent to the use of this opinion as an exhibit to the Registration Statement.

If you have any questions or would like more information about this matter, please contact me at your earliest convenience.

Cordially,

/s/ Carlos Gonzalez

Carlos Gonzalez   

Lisa Dooley (Honeywell)

Ashely Quick (Honeywell)

2

Exhibit 23.2

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in this Registration Statement on Form S-8 of our report dated February 17, 2026, relating to the financial statements of Honeywell International Inc. and the effectiveness of Honeywell International Inc.’s internal control over financial reporting, appearing in the Annual Report on Form 10-K of Honeywell International Inc. for the year ended December 31, 2025.

/s/ DELOITTE & TOUCHE LLP

Charlotte, North Carolina

April 1, 2026