Exhibit 99.1

Wesco Aircraft Holdings Reports Results for Fiscal Third Quarter 2012

VALENCIA, CA, July 31, 2012 — Wesco Aircraft Holdings, Inc. (NYSE: WAIR), a leading provider of comprehensive supply chain management services to the global aerospace industry, today announced results for its fiscal third quarter ended June 30, 2012.

Highlights

·                  Third quarter revenue of $189.3 million, up 5.2% compared to $180.0 million in the prior year

·                  Year-to-date revenue of $564.0 million, up 6.5% compared to the prior year period, and up 16.3% excluding the two Charleston programs completed in 2011

·                  Net income of $22.3 million, with Diluted Earnings Per Share of $0.23

·                  Adjusted Net Income of $22.6 million, with Adjusted Diluted Earnings Per Share of $0.24

Fiscal 2012 Third Quarter Results

Revenue for the fiscal third quarter was $189.3 million, an increase of 5.2% compared to $180.0 million in the prior year period.  Wesco again demonstrated strong international growth during the quarter with revenues in the Rest of World segment increasing by 34.5% compared to the prior year.  In the third quarter, Ad hoc, JIT and LTA sales as a percentage of net sales represented 39%, 24% and 37%, respectively, compared to 40%, 28% and 32%, respectively, for the same period last year.

Net income for the third quarter of fiscal 2012 was $22.3 million, resulting in Diluted Earnings Per Share of $0.23.  This compared to $14.0 million, or $0.15 per share in the prior year period.   The increase in net income was due to a reduction in interest expense and a lower effective tax rate, partially offset by higher selling, general and administrative expenses.  Adjusted EBITDA for the third quarter was $41.1 million as compared to $43.9 million in the third quarter of 2011.  Adjusted Net Income was $22.6 million, resulting in Adjusted Diluted Earnings Per Share of $0.24, compared to $21.1 million, or $0.23 per share in the prior year period.

Randy Snyder, Wesco’s Chairman, President, and Chief Executive Officer said, “We are pleased with our performance during the past quarter as we have continued to increase the scope of our contracts with our valued customers and have also started to see the positive impact of our efforts to work through excess customer-owned inventory on some of our newer contracts. We are also very excited about our recent acquisition of Interfast, and are working closely with the Interfast team to find ways to expand key customer relationships and to bolster our efforts to serve the Airline and MRO markets.”

First Nine Months of Fiscal 2012

Revenue for the first nine months of fiscal 2012 was $564.0 million, an increase of 6.5% compared to $529.6 million in the prior year period.  On a year-to-date basis, Ad hoc, JIT and LTA sales as a percentage of net sales represented 38%, 26% and 36%, respectively, compared to 38%, 31% and 31%, respectively, for the first nine months of fiscal 2011.

Net income for the period was $65.2 million, resulting in Diluted Earnings Per Share of $0.68.  This compared to $57.6 million or Diluted Earnings Per Share of $0.62 in the prior year period.  Adjusted EBITDA on a year-to-date basis was $126.9 million as compared to $132.9 million in 2011.  Adjusted Net Income was $67.7 million, resulting in Adjusted Diluted Earnings Per Share of $0.71, compared to $67.2 million, or $0.73 per share in the prior year period.

Recent Activity

On July 3, 2012, the Company completed its previously announced acquisition of substantially all of the assets of Interfast Inc., for CDN$134 million via a combination of cash and borrowings under its existing revolving credit facility. Interfast is a value-added distributor of specialty fasteners, fastening systems and production installation tooling for the aerospace, electronics and general industrial markets.  In conjunction with the acquisition, Wesco has named Peter Oleck, the former President of Interfast, as Vice President, Airlines and MRO in order to drive the Company’s growth in those important markets.

Financial Outlook

At this time, Wesco is reiterating its previous guidance for full year fiscal 2012 revenues of between $740-760 million, representing a growth rate of approximately 4-7% over 2011 results, or 12-15% excluding the Charleston programs. Diluted EPS and Adjusted Diluted EPS are expected to be in the range of $0.90 to $0.95, and $0.92 to $0.97, respectively. These EPS estimates are based on estimated 2012 fiscal year averages of 92.4 million basic shares and 95.6 million diluted shares.

Conference Call Information

The Company will hold a conference call to discuss its third quarter 2012 results at 5:00 p.m. EDT this afternoon. A live webcast of the call and accompanying slides may be accessed over the Internet from the Company’s website at www.wescoair.com under “Investor Relations.” Participants should follow the instructions provided on the website to download and install the necessary audio applications. The conference call also is available by dialing 800-322-2803 (domestic) or 617-614-4925 (international) and

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entering passcode 80273651.  Participants should ask for the Wesco Aircraft Holdings third quarter conference call.

A replay of the live conference call will be available approximately one hour after the call.  The replay will be available on the Company’s website or by dialing 1-888-286-8010 (domestic) or 1- 617-801-6888 (international) and entering the replay passcode 47706225.  The replay will be available on the Company’s website for one year and by telephonic replay until 11:59 p.m., August 7, 2012.

About Wesco Aircraft

Wesco Aircraft is one of the world’s largest distributors and providers of comprehensive supply chain management services to the global aerospace industry. The Company’s services range from traditional distribution to the management of supplier relationships, quality assurance, kitting, just-in-time delivery and point-of-use inventory management.  The Company believes it offers the world’s broadest inventory of aerospace parts, comprised of approximately 500,000 different stock keeping units, including hardware, bearings, tools, electronic components and machined parts. Wesco Aircraft has more than 1,200 employees across 44 locations in 12 countries.

Contact Information

Richard Zubek

Investor Relations

661-802-5078

InvestorRelations@wescoair.com

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Non-GAAP Financial Information

“Adjusted Net Income” represents Net Income before: (i) amortization of intangible assets, (ii) amortization or write-off of deferred financing costs and original issue discount, or OID, (iii) Carlyle Acquisition related non-cash stock-based compensation expense, (iv) unusual or non-recurring items and (v) the tax effect of items (i) through (iv) above calculated using an assumed effective tax rate.

“Adjusted Basic EPS” represents Basic EPS calculated using Adjusted Net Income as opposed to Net Income.

“Adjusted Diluted EPS” represents diluted EPS calculated using Adjusted Net Income as opposed to Net Income.

“Adjusted EBITDA” represents Net Income before: (i) income tax provision, (ii) net interest expense, (iii) depreciation and amortization, (iv) Carlyle Acquisition related non-cash stock-based compensation expense and (v) unusual or non-recurring items.

Wesco utilizes and discusses Adjusted Net Income, Adjusted Basic EPS, Adjusted Diluted EPS and Adjusted EBITDA, which are non-GAAP measures our management uses to evaluate our business, because we believe they assist investors and analysts in comparing our performance across reporting periods on a consistent basis by excluding items that we do not believe are indicative of our core operating performance. We believe these metrics are used in the financial community, and we present these metrics to enhance investors’ understanding of our operating performance. You should not consider Adjusted EBITDA and Adjusted Net Income as an alternative to Net Income, determined in accordance with GAAP, as an indicator of operating performance. Adjusted Net Income, Adjusted Basic EPS, Adjusted Diluted EPS and Adjusted EBITDA are not measurements of financial performance under GAAP, and these metrics may not be comparable to similarly titled measures of other companies. See below for a reconciliation of Adjusted Net Income, Adjusted Basic EPS, Adjusted Diluted EPS and Adjusted EBITDA to the most directly comparable financial measures calculated and presented in accordance with GAAP.

Forward Looking Statements

Certain information in this news release contains forward-looking statements with respect to the Company’s financial condition, results of operations or business or its expectations or beliefs concerning future events. Such forward-looking statements include the discussions of the Company’s business strategies and the Company’s expectations concerning future operations, revenues, earnings per share, margins, profitability, liquidity and capital resources. In some cases, you can identify forward-looking statements by terminology such as “guidance,” “may,” “will,” “could,” “should,” “forecasts,” “expects,” “intends,” “plans,” “anticipates,” “projects,” “outlook,” “believes,” “estimates,” “predicts,” “potential,” “continue,” “preliminary,” or the negative of these terms or other comparable terminology. Although the Company

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believes that such forward-looking statements are reasonable, it cannot assure you that any forward-looking statements will prove to be correct. Such forward-looking statements involve risks, uncertainties, estimates and assumptions that may cause the Company’s actual results, performance or achievements to be materially different than those set forth in this news release. Additional information relating to factors that may cause actual results to differ from the Company’s forward-looking statements can be found in the Company’s filings with the Securities and Exchange Commission, including the Company’s Annual Report on Form 10-K for the fiscal year ended September 30, 2011, as supplemented by the Company’s Quarterly Report on Form 10-Q for the quarterly periods ended December 31, 2011 and March 31, 2012. The Company undertakes no obligation to update or revise forward-looking statements after the day of the release as a result of new information, future events or developments except as required by law.

Exhibits

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Exhibit 1

Wesco Aircraft Holdings, Inc.

Consolidated Statements of Income (UNAUDITED)

(In thousands, except for per share data)

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Exhibit 2

Wesco Aircraft Holdings, Inc.

Condensed Consolidated Balance Sheets (UNAUDITED)

(In thousands)

7

Exhibit 3

Wesco Aircraft Holdings, Inc.

Condensed Consolidated Statements of Cash Flows (UNAUDITED)

(In thousands)

8

Exhibit 4

Wesco Aircraft Holdings, Inc.

Non-GAAP Financial Information (UNAUDITED)

(In thousands, except for per share data)

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