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CORRESP
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September 17, 2024

Via EDGAR

U.S. Securities and Exchange Commission

Division of Corporation Finance

100 F. Street, NE

Washington, DC 20549

 Re: Request for Acceleration of Effectiveness of Registration Statement on Form S-3 (File No. 333-281968)
of Plains All American Pipeline, L.P. (the “Registrant”)

Ladies and Gentlemen:

On behalf of the Registrant,
and pursuant to Rule 461 promulgated under the Securities Act of 1933, as amended, the undersigned hereby requests that the effective
date of the above-referenced Registration Statement be accelerated to 4:00 p.m., Eastern Time, on Thursday, September 19, 2024, or
as soon thereafter as practicable. Once the Registration Statement has been declared effective, please orally confirm that event with
our counsel, Vinson & Elkins L.L.P., by calling David Oelman at (713) 758-3708 or Scott Rubinsky at (713) 758-3287.

If you need additional information,
please contact me at (713) 646-4100.

    Very truly yours,

    Plains All American Pipeline, L.P.

    By:
    PAA GP LLC, its general partner

    By:
    Plains AAP, L.P., its sole member

    By:
    Plains All American GP LLC, its general partner

    By:
    Plains GP Holdings, L.P., its sole member

    By:
    PAA GP Holdings LLC, its general partner

    By:
          /s/ Richard McGee

    Name:
    Richard McGee

    Title:
    Executive Vice President, General Counsel and Secretary

Plains All American GP LLC, General
Partner of Plains AAP, L.P., the Sole Member of

PAA GP LLC, the General Partner
of Plains All American Pipeline, L.P.

333 Clay Street,
Suite 1600 (77002) § P.O. Box 4648 § Houston, Texas 77210-4648  § 713-646-4100