Exhibit 99.1

CLEAR CHANNEL OUTDOOR HOLDINGS, INC. REPORTS

RESULTS FOR 2018 FIRST QUARTER

San Antonio, TX, May 22, 2018 – Clear Channel Outdoor Holdings, Inc. (NYSE: CCO) today reported financial results for the first quarter ended March 31, 2018.

“The investments we continue to make in both the Americas and International businesses to enhance our global network are benefiting our marketing and advertising partners and generating results,” said Bob Pittman, Executive Chairman and Chief Executive Officer of Clear Channel Outdoor Holdings, Inc. “In the first quarter, we have delivered against our strategy in key markets worldwide by expanding our digital network, enhancing our programmatic solutions and data analytics capabilities and winning new contracts.”

Rich Bressler, Chief Financial Officer of Clear Channel Outdoor Holdings, Inc. said: “We are encouraged by our start in the first quarter of 2018. Revenue increased, operating income declined primarily due to a gain from the sale of our Indianapolis market in the prior year, while OIBDAN increased. We continue to be committed to financial discipline as we invest in our strategic growth initiatives.”

Key Financial Highlights

The Company’s key financial highlights for the first quarter of 2018 include:

Key Non-Financial Highlights

The Company’s recent key non-financial highlights include:

Building out our digital network by adding 36 new digital billboards for a total of 1,228 now available across the United States and installing 335 digital displays with more than 14,000 now available across our International markets including:

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Enhancing the capabilities of our tools:

Widening our reach with new contracts:

Being honored within the industry and community:

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GAAP Measures by Segment

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Non-GAAP Measures¹ (see preceding table for comparable GAAP measures)

Certain prior period amounts have been reclassified to conform to the 2018 presentation of financial information throughout the press release.

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First Quarter 2018 Results

Consolidated

Consolidated revenue increased $54.0 million, or 9.9%, during the first quarter of 2018 as compared to the first quarter of 2017. Consolidated revenue increased $23.9 million, or 4.4%, after adjusting for a $34.8 million impact from movements in foreign exchange rates and the $4.7 million impact from the sale of our business in Canada.

Consolidated direct operating and SG&A expenses increased $43.9 million, or 9.9%, during the first quarter of 2018 as compared to the first quarter of 2017. Consolidated direct operating and SG&A expenses increased $16.5 million, or 3.8%, in the first quarter, after adjusting for a $32.8 million impact from movements in foreign exchange rates and the $5.4 million impact from the sale of our business in Canada.

Consolidated operating income (loss ) decreased 139.1% to $(8.4) million, during the first quarter of 2018 as compared to the first quarter of 2017, primarily due to the net gain of $28.6 million recognized on the sale of our Americas Indianapolis market in the first quarter of 2017.

The Company’s OIBDAN increased 13.0% to $77.8 million, during the first quarter of 2018 as compared to the first quarter of 2017. The Company’s OIBDAN increased 10.1% in the first quarter 2018 compared to the same period of 2017, after adjusting for movements in foreign exchange rates and the impact from the sale of our business in Canada.

Americas

Americas revenues decreased $4.5 million, or 1.7%, during the first quarter of 2018 as compared to the first quarter of 2017. Revenues increased $0.2 million, or 0.1%, after adjusting for the $4.7 million impact from the sale of our business in Canada.

Direct operating and SG&A expenses decreased $7.2 million, or 4.0%, during the first quarter of 2018 as compared to the first quarter of 2017. Direct operating and SG&A expenses decreased $1.8 million, or 1.0%, after adjusting for the $5.4 million impact from the sale of our business in Canada.

Operating income increased 2.8% to $37.5 million during the first quarter of 2018 as compared to the first quarter of 2017. OIBDAN increased $2.7 million, or 3.4%. OIBDAN increased $1.9 million, or 2.4%, during the first quarter of 2018, after adjusting for the $0.8 million impact from the sale of our business in Canada.

International

International revenues increased $58.5 million, or 20.6%, during the first quarter of 2018 as compared to the first quarter of 2017. Revenues increased $23.7 million, or 8.3%, after adjusting for a $34.8 million impact from movements in foreign exchange rates. The increase is primarily due to growth across several markets including China, Switzerland, Spain and Sweden, primarily from new deployments and digital expansion.

Direct operating and SG&A expenses increased $51.1 million, or 19.5%, during the first quarter of 2018 as compared to the first quarter of 2017. Direct operating and SG&A expenses increased $18.3 million, or 7.0%, after adjusting for a $32.8 million impact from movements in foreign exchange rates. Direct operating and SG&A expenses increased primarily due to higher site lease expenses and other variable expenses in countries experiencing revenue growth.

Operating loss decreased 17.1% to $(9.5) million during the first quarter of 2018 as compared to the first quarter of 2017. OIBDAN increased $7.4 million, or 34.0%. OIBDAN increased $5.4 million, or 24.9%, during the first quarter of 2018, after adjusting for a $2.0 million impact from movements in foreign exchange rates.

Clear Channel International B.V. (“CCIBV”)

CCIBV’s consolidated revenues increased $42.9 million to $266.8 million in the first quarter of 2018 compared to the same period in 2017. This increase includes a $30.1 million impact from movements in foreign exchange rates. Excluding the impact from movements in foreign exchange rates, CCIBV revenues increased $12.8 million during the first quarter of 2018 as compared to the same period in 2017.

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CCIBV’s operating loss was $13.7 million in the first quarter of 2018 compared to operating loss of $20.7 million in the same period in 2017, which was primarily due to the increase in revenues, due to growth across several markets, partially offset by an increase in direct operating expenses.

Liquidity and Financial Position

As of March 31, 2018, we had $153.2 million of cash on our balance sheet, including $135.4 million of cash held outside the U.S. by our subsidiaries. For the three months ended March 31, 2018, cash provided by operating activities was $5.0 million, cash used for investing activities was $27.3 million, cash provided by financing activities was $30.5 million, and there was $3.3 million impact from movements in foreign exchange rates on cash. The net increase in cash, cash equivalents and restricted cash from December 31, 2017 was $11.6 million.

Capital expenditures for the three months ended March 31, 2018 were $28.7 million compared to $36.3 million for the same period in 2017.

On January 24, 2018, we made a demand for repayment of $30.0 million outstanding under the Due from iHeartCommunications Note and simultaneously paid a special cash dividend of $30.0 million. iHeartCommunications received approximately 89.5%, or approximately $26.8 million, of the proceeds of the dividend through its wholly-owned subsidiaries, with the remaining approximately 10.5%, or approximately $3.2 million, of the proceeds of the dividend paid to our public stockholders.

At March 31, 2018, the principal amount outstanding under the Due from iHeartCommunications Note was $1,031.7 million. As a result of the voluntary petition by iHeartMedia, iHeartCommunications and certain of their subsidiaries for reorganization under Chapter 11 of the United States Bankruptcy Code (the “iHeart Chapter 11 Cases”), CCOH recognized a loss of $855.6 million on the Due from iHeartCommunications Note during the fourth quarter of 2017 to reflect the estimated recoverable amount of the note as of December 31, 2017, based on management’s best estimate of the cash settlement amount. As of March 31, 2018 and December 31, 2017, the asset recorded in “Due from iHeartCommunications” on our consolidated balance sheet was $154.8 million and $212.0 million, respectively

Conference Call

The Company will host a conference call to discuss results on May 22, 2018 at 8:30 a.m. Eastern Time. The conference call number is (800) 230-1092 (U.S. callers) and (612) 288-0337 (International callers) and the passcode for both is 449192. A live audio webcast of the conference call will also be available on the investor section of www.clearchanneloutdoor.com. After the live conference call, a replay will be available for a period of thirty days. The replay numbers are (800) 475-6701 (U.S. callers) and (320) 365-3844 (International callers) and the passcode for both is 449192. An archive of the webcast will be available beginning 24 hours after the call for a period of thirty days.

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TABLE 1—Financial Highlights of Clear Channel Outdoor Holdings, Inc. and Subsidiaries

For the three months ended March 31, 2018, foreign exchange rate movements increased the Company’s revenues by $34.8 million and increased direct operating expenses by $24.6 million and SG&A expenses by $8.2 million.

TABLE 2—Selected Balance Sheet Information

Selected balance sheet information for March 31, 2018 and December 31, 2017:

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TABLE 3—Total Debt

At March 31, 2018 and December 31, 2017, Clear Channel Outdoor Holdings had a total net debt of:

The current portion of long-term debt was $0.5 million and $0.6 million as of March 31, 2018 and December 31, 2017, respectively.

Supplemental Disclosure Regarding Non-GAAP Financial Information

The following tables set forth the Company’s OIBDAN for the three months ended March 31, 2018 and 2017. The Company defines OIBDAN as consolidated operating income adjusted to exclude non-cash compensation expenses, included within corporate expenses, as well as the following line items presented in its Statement of Operations: Depreciation and amortization; Impairment charges; and Other operating income (expense), net.

The Company uses OIBDAN, among other measures, to evaluate the Company’s operating performance. This measure is among the primary measures used by management for the planning and forecasting of future periods, as well as for measuring performance for compensation of executives and other members of management. We believe this measure is an important indicator of the Company’s operational strength and performance of its business because it provides a link between operational performance and operating income. It is also a primary measure used by management in evaluating companies as potential acquisition targets.

The Company believes the presentation of this measure is relevant and useful for investors because it allows investors to view performance in a manner similar to the method used by the Company’s management. The Company believes it helps improve investors’ ability to understand the Company’s operating performance and makes it easier to compare the Company’s results with other companies that have different capital structures or tax rates. In addition, the Company believes this measure is also among the primary measures used externally by the Company’s investors, analysts and peers in its industry for purposes of valuation and comparing the operating performance of the Company to other companies in its industry.

Since OIBDAN is not a measure calculated in accordance with GAAP, it should not be considered in isolation of, or as a substitute for, operating income as an indicator of operating performance and may not be comparable to similarly titled measures employed by other companies. OIBDAN is not necessarily a measure of the Company’s ability to fund its cash needs. As it excludes certain financial information compared with operating income, the most directly comparable GAAP financial measure, users of this financial information should consider the types of events and transactions which are excluded.

The other non-GAAP financial measures presented in the tables below are: (i) revenues, direct operating and SG&A expenses and OIBDAN, each excluding the effects of foreign exchange rates; (ii) revenues, direct operating and SG&A expenses and OIBDAN, each excluding the effects of foreign exchange rates and the results from business sold and (iii) corporate expenses, excluding non-cash compensation expenses and the effects of foreign exchange rates.

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The Company presents revenues, direct operating and SG&A expenses and OIBDAN, each excluding the effects of foreign exchange rates, because management believes that viewing certain financial results without the impact of fluctuations in foreign currency rates facilitates period to period comparisons of business performance and provides useful information to investors. A significant portion of the Company’s advertising operations are conducted in foreign markets, principally Europe, the U.K. and China, and management reviews the results from its foreign operations on a constant dollar basis. Revenues, direct operating and SG&A expenses and OIBDAN, each excluding the effects of foreign exchange rates, are calculated by converting the current period’s amounts in local currency to U.S. dollars using average foreign exchange rates for the prior period.

In the third quarter of 2018, we sold our business in Canada. The Company presents revenues, direct operating and SG&A expenses and OIBDAN, each excluding the effects of foreign exchange rates and the results from the business sold, for the consolidated Company and the Company’s segments, in order to facilitate investors’ understanding of operational trends without the impact of fluctuations in foreign currency rates and without the results from the markets and businesses that were sold, as these results will not be included in the Company’s results in current and future periods.

Corporate expenses, excluding the effects of non-cash compensation expenses is presented as OIBDAN excludes non-cash compensation expenses.

Since these non-GAAP financial measures are not calculated in accordance with GAAP, they should not be considered in isolation of, or as a substitute for, the most directly comparable GAAP financial measures as an indicator of operating performance.

As required by the SEC rules, the Company provides reconciliations below to the most directly comparable amounts reported under GAAP, including (i) OIBDAN, excluding effects of foreign exchange rates and OIBDAN for each segment, to consolidated and segment operating income (loss); (ii) revenues, excluding effects of foreign exchange rates, to revenues; (iii) direct operating and SG&A expenses, excluding effects of foreign exchange rates, to direct operating and SG&A expenses; (iv) corporate expenses, excluding non-cash compensation expenses and effects of foreign exchange rates, to corporate expenses; (v) Consolidated and segment revenues, excluding effects of foreign exchange rates and results from business sold, to Consolidated and segment revenues; (vi) Consolidated and segment direct operating and SG&A expenses, excluding effects of foreign exchange rates and results from business sold, to Consolidated and segment direct operating and SG&A expenses; and (vii) Consolidated and segment OIBDAN, excluding effects of foreign exchange rates and results from business sold, to Consolidated and segment operating income (loss).

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Reconciliation of OIBDAN, excluding effects of foreign exchange rates and OIBDAN for each segment to, Consolidated and Segment Operating Income (Loss)

Reconciliation of Revenues, excluding effects of foreign exchange rates, to Revenues

Reconciliation of Direct operating and SG&A expenses, excluding effects of foreign exchange rates, to Direct operating and SG&A expenses

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Reconciliation of Corporate expenses, excluding non-cash compensation expenses and effects of foreign exchange rates, to Corporate Expenses

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Reconciliation of Consolidated and Segment Revenues, excluding effects of foreign exchange rates and results from business sold, to Consolidated and Segment Revenues

Reconciliation of Consolidated and Segment Direct operating and SG&A expenses, excluding effects of foreign exchange rates and results from business sold, to Consolidated and Segment Direct operating and SG&A expenses

Reconciliation of Consolidated and Segment OIBDAN, excluding effects of foreign exchange rates and results from business sold to, Consolidated and Segment Operating Income (Loss)

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About Clear Channel Outdoor Holdings, Inc.

Clear Channel Outdoor Holdings, Inc. (NYSE: CCO) is one of the world’s largest outdoor advertising companies with over 560,000 displays in 31 countries across Asia, Europe, Latin America and North America. Reaching millions of people monthly, including consumers in 43 of the top 50 U.S. markets, Clear Channel Outdoor enables advertisers to engage with consumers through innovative advertising solutions. Clear Channel Outdoor is pioneering the integration of out-of-home with mobile and social platforms, and the company’s digital platform includes more than 1,200 digital billboards across 28 markets in the U.S. and more than 14,000 digital displays in international markets. More information is available at www.clearchanneloutdoor.com and www.clearchannelinternational.com.

For further information, please contact:

Media

Wendy Goldberg

Executive Vice President – Communications

(212) 377-1105

Investors

Eileen McLaughlin

Vice President – Investor Relations

(212) 377-1116

Certain statements in this press release constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Such forward-looking statements involve known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of Clear Channel Outdoor Holdings, Inc. and its subsidiary Clear Channel International B.V. to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. The words or phrases “guidance,” “believe,” “expect,” “anticipate,” “estimates,” “forecast” and similar words or expressions are intended to identify such forward-looking statements. In addition, any statements that refer to expectations or other characterizations of future events or circumstances, such as statements about our business plans, strategies and initiatives and our expectations about certain markets, are forward-looking statements. These statements are not guarantees of future performance and are subject to certain risks, uncertainties and other factors, some of which are beyond our control and are difficult to predict. Various risks that could cause future results to differ from those expressed by the forward-looking statements included in this press release include, but are not limited to: weak or uncertain global economic condition; our ability to service our debt obligations and to fund our operations and capital expenditures; industry conditions, including competition; our dependence on our management team and other key individuals; our ability to obtain key municipal concessions; fluctuations in operating costs; technological changes and innovations; shifts in population and other demographics; other general economic and political conditions in the United States and in other countries in which we currently do business; changes in labor conditions and management; the impact of future dispositions, acquisitions and other strategic transactions; legislative or regulatory requirements; regulations and consumer concerns regarding privacy and data protection; restrictions on outdoor advertising of certain products; capital expenditure requirements; fluctuations in exchange rates and currency values; risks of doing business in foreign countries; the identification of a material weakness in our internal controls over financial reporting; our relationship with iHeartCommunications, including its ability to elect all of the members of our board of directors and its ability as our controlling stockholder to determine the outcome of matters submitted to our stockholders and certain additional matters governed by intercompany agreements between us; the risks and uncertainties associated with the iHeart Chapter 11 Cases on us and iHeartCommunications, our primary direct or indirect external source of capital, which is operating as a “debtor-in-possession” under the jurisdiction of the Bankruptcy Court; the obligations and restrictions imposed on us by our agreements with iHeartCommunucations; the risk that we may be unable to replace the services iHeartCommunications provides us in a timely manner or on comparable terms; the risk that the iHeart Chapter 11 Cases may result in unfavorable tax consequences for us and impair our ability to utilize our federal income tax net operating loss carryforwards in future years; the impact of our substantial indebtedness, including the effect of our leverage on our financial position and earnings; the ability of our subsidiaries to dividend or distribute

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funds to us in order for us to repay our debts; the restrictions contained in the agreements governing our indebtedness limiting our flexibility in operating our business; and the effect of credit ratings downgrades. Other unknown or unpredictable factors also could have material adverse effects on the Company’s future results, performance or achievements. In light of these risks, uncertainties, assumptions and factors, the forward-looking events discussed in this press release may not occur. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date stated, or if no date is stated, as of the date of this press release. Other key risks are described in the Company’s reports filed with the U.S. Securities and Exchange Commission, including the section entitled “Item 1A. Risk Factors” of Clear Channel Outdoor Holdings, Inc.’s Annual Reports on Form 10-K and Quarterly Reports on Form 10-Q. Except as otherwise stated in this press release, the Company does not undertake any obligation to publicly update or revise any forward-looking statements because of new information, future events or otherwise.

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