UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

SCHEDULE 14A

(Rule 14a-101)

INFORMATION REQUIRED IN PROXY STATEMENT

SCHEDULE 14A INFORMATION

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Archer Aviation Inc.

(Name of Registrant as Specified in its Charter)

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Your Vote Counts! ARCHER AVIATION INC. 190 W. TASMAN DRIVE SAN JOSE, CA 95134 ARCHER AVIATION INC. 2023 Annual Meeting Vote by June 22, 2023 8:59 PM PT Vote Virtually at the Meeting* June 23, 2023 12:00 PM PDT Virtually at: www.virtualshareholdermeeting.com/ACHR2023 *Please check the meeting materials for any special requirements for meeting attendance. Smartphone users Point your camera here and vote without entering a control number For complete information and to vote, visit www.ProxyVote.com Control # V16921-P92929 You invested in ARCHER AVIATION INC. and it’s time to vote! You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the availability of proxy material for the stockholder meeting to be held on June 23, 2023. Get informed before you vote View the Notice, Proxy Statement and Annual Report online OR you can receive a free paper or email copy of the material(s) by requesting prior to June 9, 2023. If you would like to request a copy of the material(s) for this and/or future stockholder meetings, you may (1) visit www.ProxyVote.com, (2) call 1-800-579-1639 or (3) send an email to sendmaterial@proxyvote.com. If sending an email, please include your control number (indicated below) in the subject line. Unless requested, you will not otherwise receive a paper or email copy. V1.2

Vote at www.ProxyVote.com THIS IS NOT A VOTABLE BALLOT This is an overview of the proposals being presented at the upcoming stockholder meeting. Please follow the instructions on the reverse side to vote these important matters. Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click “Delivery Settings”. Voting Items Board Recommends V16922-P92929 Election of Class II Directors Nominees: Barbara Pilarski Maria Pinelli Michael Spellacy For All 2. Approval of the issuance of Class A common stock pursuant to the Stellantis Forward Purchase Agreement and the Stellantis Warrant Agreement. For 3. Ratification of the appointment of PricewaterhouseCoopers LLP as the Company’s independent registered public accounting firm for the year ending December 31, 2023. For NOTE: Such other business as may properly come before the meeting or any adjournment thereof.