September 6, 2018 Chris Kenny Vice President and Controller United Continental Holdings, Inc. 233 South Wacker Drive Chicago, Illinois 60606 Re: United Continental Holdings, Inc. Form 10-K for Fiscal Year Ended December 31, 2017 Filed February 22, 2018 Form 10-Q for Fiscal Quarter Ended March 31, 2018 Filed April 18, 2018 File No. 001-06033 Dear Mr. Kenny: We have completed our review of your filings. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Sincerely, Division of Corporation Finance Office of Transportation and Leisure