Exhibit 99.1

News Release   United Airlines Worldwide Media Relations 872.825.8640 media.relations@united.com

United Announces First-Quarter 2013 Results

UAL Reports $325 Million First-Quarter 2013 Loss Excluding Special Charges;

$417 Million Loss Including Special Charges

CHICAGO, April 25, 2013 – United Airlines (NYSE:UAL) today reported a first-quarter 2013 net loss of $325 million, or $0.98 per share, excluding $92 million of special charges. Including special charges, UAL reported a first-quarter 2013 net loss of $417 million, or $1.26 per share.

“Our co-workers pulled together in the first quarter to significantly improve our operational performance and customer service despite challenging weather and high load factors, and I want to thank them for their hard work,” said Jeff Smisek, chairman, president and chief executive officer. “Although this was a difficult quarter financially, I’m very proud of our team.”

First-Quarter Revenue and Capacity

For the first quarter of 2013, total revenue was $8.7 billion, an increase of 1.4 percent year-over-year. First-quarter consolidated passenger revenue increased 0.7 percent to $7.6 billion, compared to the same period in 2012.

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Consolidated revenue passenger miles (RPMs) decreased 1.2 percent on a consolidated capacity (available seat miles) decrease of 4.9 percent year-over-year for the first quarter. First-quarter 2013 consolidated load factor was 81.1 percent, an increase of 3.0 points versus the first quarter of 2012.

First-quarter 2013 consolidated PRASM increased 5.9 percent compared to the same period in 2012. Consolidated yield for the first quarter of 2013 increased 1.9 percent year-over-year.

Mainline RPMs in the first quarter of 2013 decreased 1.6 percent on a mainline capacity decrease of 5.0 percent year-over-year, resulting in a first-quarter mainline load factor of 81.4 percent. Mainline yield for the first quarter of 2013 increased 1.3 percent compared to the same period in 2012. First-quarter 2013 mainline PRASM increased 5.0 percent year-over-year.

“We are encouraged by our unit revenue performance this quarter, and we are working hard to build on our overall revenue progress this year,” said Jim Compton, UAL’s vice chairman and chief revenue officer. “My co-workers’ continued focus on our operational performance and customer service directly contributed to our improved revenue results.”

Passenger revenue for the first quarter of 2013 and period-to-period comparisons of related statistics for UAL’s mainline and regional operations are as follows:

Year-over-year cargo and other revenue in the first quarter of 2013 increased 6.2 percent, or $68 million, to $1.2 billion.

First-Quarter Costs

First-quarter total operating expenses increased $112 million, or 1.3 percent, year-over-year. Third-party business expense was $121 million in the first quarter.

Consolidated and mainline CASM, excluding special charges and third-party business expense, increased 6.8 percent and 8.3 percent, respectively, in the first quarter of 2013 compared to the same period of 2012. First-quarter consolidated and mainline CASM, including special charges, increased 6.5 and 7.9 percent year-over-year, respectively.

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In the first quarter, consolidated and mainline CASM, excluding special charges and third-party business expense and holding fuel rate and profit sharing constant, increased 7.2 percent and 8.6 percent, respectively, compared to the results for the same period in 2012.

“We are focused companywide on operating more efficiently. Moreover, we are building an infrastructure to achieve our return-on-invested-capital goals and generate long-term returns,” said John Rainey, UAL’s executive vice president and chief financial officer. “Our balance sheet is the healthiest it’s been in years, and that benefits everyone—co-workers, customers and investors.”

Liquidity, Cash Flow and Return on Invested Capital

UAL ended the quarter with $6.4 billion in unrestricted liquidity, including $1.0 billion of undrawn commitments under its new revolving credit facility. During the first quarter, the company generated $393 million of operating cash flow and had gross capital expenditures and purchase deposits of $526 million. The company made debt and capital lease principal payments of $1.3 billion in the first quarter, including $1.0 billion of prepayments. The company’s return on invested capital for the 12 months ended March 31, 2013, was 8.0 percent, below the company’s goal of 10 percent.

First-Quarter 2013 Events

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About United

United Airlines and United Express operate an average of 5,446 flights a day to more than 370 airports across six continents. In 2012, United and United Express carried more passenger traffic than any other airline in the world and operated nearly two million flights carrying 140 million customers. United is investing in upgrading its onboard products and now offers more flat-bed seats in its premium cabins and more extra-legroom economy-class seating than any airline in North America. In 2013, United became the first U.S.-based international carrier to offer satellite-based Wi-Fi on long-haul overseas routes. The airline also features DIRECTV^® on nearly 200 aircraft, offering customers more live television access than any other airline in the world. United operates nearly 700 mainline aircraft and has made large-scale investments in its fleet. In 2013, United will continue to modernize its fleet by taking delivery of more than two dozen new Boeing aircraft. The company expanded its industry-leading global route network in 2012, launching nine new international and 18 new domestic routes. Business Traveler magazine awarded United Best Airline for North American Travel for 2012, and readers of Global Traveler magazine have voted United’s MileagePlus program the best frequent flyer program for nine consecutive years. United is a founding member of Star Alliance, which provides service to 194 countries via 27 member airlines. More than 85,000 United employees reside in every U.S. state and in countries around the world. For more information, visit united.com or follow United on Twitter and Facebook. The common stock of United’s parent, United Continental Holdings, Inc., is traded on the NYSE under the symbol UAL.

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Safe Harbor Statement under the Private Securities Litigation Reform Act of 1995: Certain statements included in this release are forward-looking and thus reflect our current expectations and beliefs with respect to certain current and future events and financial performance. Such forward-looking statements are and will be subject to many risks and uncertainties relating to our operations and business environment that may cause actual results to differ materially from any future results expressed or implied in such forward-looking statements. Words such as “expects,” “will,” “plans,” “anticipates,” “indicates,” “believes,” “forecast,” “guidance,” “outlook” and similar expressions are intended to identify forward-looking statements. Additionally, forward-looking statements include statements which do not relate solely to historical facts, such as statements which identify uncertainties or trends, discuss the possible future effects of current known trends or uncertainties, or which indicate that the future effects of known trends or uncertainties cannot be predicted, guaranteed or assured. All forward-looking statements in this release are based upon information available to us on the date of this release. We undertake no obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future events, changed circumstances or otherwise, except as required by applicable law. Our actual results could differ materially from these forward-looking statements due to numerous factors including, without limitation, the following: our ability to comply with the terms of our various financing arrangements; the costs and availability of financing; our ability to maintain adequate liquidity; our ability to execute our operational plans; our ability to control our costs, including realizing benefits from our resource optimization efforts, cost reduction initiatives and fleet replacement programs; our ability to utilize our net operating losses; our ability to attract and retain customers; demand for transportation in the markets in which we operate; an outbreak of a disease that affects travel demand or travel behavior; demand for travel and the impact that global economic conditions have on customer travel patterns; excessive taxation and the inability to offset future taxable income; general economic conditions (including interest rates, foreign currency exchange rates, investment or credit market conditions, crude oil prices, costs of aviation fuel and energy refining capacity in relevant markets); our ability to cost-effectively hedge against increases in the price of aviation fuel; any potential realized or unrealized gains or losses related to fuel or currency hedging programs; the effects of any hostilities, act of war or terrorist attack; the ability of other air carriers with whom we have alliances or partnerships to provide the services contemplated by the respective arrangements with such carriers; the costs and availability of aviation and other insurance; the costs associated with security measures and practices; industry consolidation or changes in airline alliances; competitive pressures on pricing and on demand; our capacity decisions and the capacity decisions of our competitors; U.S. or foreign governmental legislation, regulation and other actions (including open skies agreements, environmental regulations and FAA imposed furloughs on air traffic controllers); labor costs; our ability to maintain satisfactory labor relations and the results of the collective bargaining agreement process with our union groups; any disruptions to operations due to any potential actions by our labor groups; weather conditions; the possibility that expected merger synergies will not be realized or will not be realized within the expected time period; and other risks and uncertainties set forth under Item 1A., Risk Factors of our Annual Report on Form 10-K, as well as other risks and uncertainties set forth from time to time in the reports we file with the SEC. Consequently, forward-looking statements should not be regarded as representations or warranties by us that such matters will be realized.

-tables attached-

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UNITED CONTINENTAL HOLDINGS, INC.

STATEMENTS OF CONSOLIDATED OPERATIONS (UNAUDITED)

THREE MONTHS ENDED MARCH 31, 2013 AND 2012

NM Not meaningful

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UNITED CONTINENTAL HOLDINGS, INC.

CONSOLIDATED NOTES (UNAUDITED)

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UNITED CONTINENTAL HOLDINGS, INC.

CONSOLIDATED NOTES (UNAUDITED)

2013 - Special charges

Merger integration-related costs: Merger integration-related costs include compensation costs related to systems integration and training, costs to repaint aircraft and other branding activities, new uniform costs, costs to write-off or accelerate depreciation on systems and facilities that are no longer used or planned to be used for significantly shorter periods, relocation costs for employees and severance primarily associated with administrative headcount reductions.

Voluntary severance and benefits: The company recorded $14 million associated with a voluntary program offered by United under which flight attendants took an unpaid 13-month leave of absence. The flight attendants continue to receive medical benefits and other company benefits while on leave under this program. Approximately 1,300 flight attendants opted to participate in the program.

Charges for temporarily grounded 787 aircraft: The company recorded $11 million associated with the temporary grounding of its Boeing 787 aircraft. The charges are comprised of aircraft depreciation expense and dedicated personnel costs that the company continues to incur while the aircraft are grounded.

Gains on sales of assets and other special items, net: The company recorded a $5 million gain related to a contract termination and $2 million in losses on the sale of assets.

2012 - Special charges

Merger integration-related costs: Merger integration-related costs include compensation costs related to systems integration and training, costs to repaint aircraft and other branding activities, costs to write-off or accelerate depreciation on systems and facilities that are no longer used or planned to be used for significantly shorter periods, relocation costs for employees and severance primarily associated with administrative headcount reductions.

Voluntary severance and benefits: The company recorded $49 million associated with two voluntary employee programs. In one program, approximately 400 mechanics offered to retire early in exchange for a cash severance payment that was based on the number of years of service the employee had accumulated. The other program is a voluntary company-offered leave of absence that approximately 1,800 flight attendants accepted, which allows for continued medical coverage during the leave of absence period.

Gains on sales of assets and other special items, net: The company sold six aircraft and its interest in a crew hotel in Hawaii during the first quarter of 2012. The company also recorded an impairment charge on an intangible asset related to certain take-off and landing slots to reflect the discontinuance of one of the frequencies on an international route. The company also made adjustments to legal reserves.

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UNITED CONTINENTAL HOLDINGS, INC.

STATISTICS

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UNITED CONTINENTAL HOLDINGS, INC.

STATISTICS (Continued)

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UNITED CONTINENTAL HOLDINGS, INC.

NON-GAAP FINANCIAL RECONCILIATION

UAL evaluates its financial performance utilizing various accounting principles generally accepted in the United States of America (“GAAP”) and non-GAAP financial measures including, net income/loss, net earnings/loss per share and CASM, among others. CASM is a common metric used in the airline industry to measure an airline’s cost structure and efficiency. Pursuant to SEC Regulation G, UAL has included the following reconciliation of reported non-GAAP financial measures to comparable financial measures reported on a GAAP basis. UAL believes that excluding fuel costs from certain measures is useful to investors because it provides an additional measure of management’s performance excluding the effects of a significant cost item over which management has limited influence. UAL also believes that adjusting for special charges is useful to investors because they are non-recurring charges not indicative of UAL’s on-going performance. UAL also believes that excluding third-party business expenses, such as maintenance, ground handling and catering services for third parties, fuel sales and non-air mileage redemptions, provides more meaningful disclosure because these expenses are not directly related to UAL’s core business.

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UNITED CONTINENTAL HOLDINGS, INC.

NON-GAAP FINANCIAL RECONCILIATION (Continued)

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UNITED CONTINENTAL HOLDINGS, INC.

RETURN ON INVESTED CAPITAL (ROIC)

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