Exhibit 99.1

Wesco Aircraft Holdings Reports Results for Fiscal First Quarter 2013

VALENCIA, CA, January 29, 2013 — Wesco Aircraft Holdings, Inc. (“Wesco Aircraft” or the “Company”) (NYSE: WAIR), a leading provider of comprehensive supply chain management services to the global aerospace industry, today announced results for its fiscal first quarter ended December 31, 2012.

Highlights

·                  Revenue of $211.2 million, up 9.7% compared to $192.6 million in the prior year

·                  Net Income of $18.4 million, with Diluted Earnings Per Share of $0.19

·                  Adjusted Net Income of  $24.1 million, with Adjusted Diluted Earnings Per Share of $0.25

·                  Full year 2013 guidance unchanged for sales of $865 to $890 million, Diluted EPS of $1.08 to $1.12, and Adjusted Diluted EPS of $1.14 to $1.19.

Fiscal 2013 First Quarter Results

Revenue for the first fiscal quarter was $211.2 million, an increase of 9.7% compared to $192.6 million in the prior year period.  The increase in the North America segment was 10.3% which was mainly driven by the Interfast acquisition.  Wesco again demonstrated strong international growth during the quarter with revenues in the Rest of World segment increasing by 32.9% compared to the prior year.  In the first quarter, Ad Hoc, JIT and LTA sales as a percentage of net sales represented 40%, 26% and 34%, respectively, compared to 35%, 31% and 34%, respectively, for the same period last year.

Net income for the first quarter was $18.4 million, resulting in Diluted Earnings Per Share of $0.19. This compares to $23.2 million, or $0.24 per share in the prior year period.  The reduction in Diluted Earnings Per Share was primarily the result of a write-off of deferred financing costs associated with the recent refinancing of the Company’s debt and credit facilities (approx. $0.03 per share) and integration costs associated with the recent acquisition of Interfast ($0.01 per share).  Excluding these and other unusual items, Adjusted Net Income was $24.1 million and Adjusted Earnings Per Share was $0.25 in the first quarter of 2013 as compared to $24.3 million or $0.26 per share in the prior year period.  The current year period benefitted from higher sales, primarily due to the Interfast acquisition, and a lower tax rate.  Offsetting this benefit were slightly lower gross margins as our lower margin electronics products sales grew more rapidly than our hardware sales and the addition of SG&A costs associated with the Interfast business.

Wesco Aircraft’s Chairman, President and Chief Executive Officer, Randy Snyder said, “Our first quarter results were strong and give us high confidence in our full year guidance for sales growth and earnings per share.  We are experiencing high levels of activity in bookings, additions to our current contracts, and contract signings with new customers, which adds to our optimism for the rest of the year and beyond.  The Interfast integration is also going very well and exceeding my expectations.  None of this would

be achievable without our strong customer relationships, the support of our suppliers and the dedicated efforts of the best employees in the business.”

Financial Outlook

Based on our performance during the first quarter, Wesco reiterates its guidance for 2013 and expects full year revenues to be between $865 and $890 million, representing a growth rate of approximately 11% to 15% over 2012 results. Diluted EPS and Adjusted Diluted EPS are expected to be in the range of $1.08 to $1.12, and $1.14 to $1.19, respectively.

Conference Call Information

Wesco Aircraft will also hold a conference call to discuss its first quarter results at 5:00 p.m. EST on January 29, 2013.  The conference call can be accessed by dialing 866-825-3308 (domestic) or 617-213-8062 (international).  Participants will need to enter passcode 41826718.

The conference call will be simultaneously broadcast on Wesco Aircraft’s Investor Relations website (http://ir.wescoair.com).

Following the live webcast, a replay will be available on the Company’s website for one year.  A telephonic replay will also be available approximately one hour after the conference call and may be accessed by dialing 888-286-8010 (domestic) or 617-801-6888 (international) and entering passcode 57269261.  The telephonic replay will be available until February 5, 2013.

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 more than 500,000 different stock keeping units, including hardware, bearings, tools, electronic components and machined parts. Wesco Aircraft has more than 1,200 employees across 41 locations in 12 countries.

To learn more about Wesco Aircraft, visit our website at www.wescoair.com.

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) unusual or non-recurring items and (iv) the tax effect of items (i) through (iii) 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 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, 2012 filed on November 30, 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

Exhibit 1

Wesco Aircraft Holdings, Inc.

Consolidated Statements of Income (UNAUDITED)

(In thousands, except for per share data)

Exhibit 2

Wesco Aircraft Holdings, Inc.

Condensed Consolidated Balance Sheets (UNAUDITED)

(In thousands)

Exhibit 3

Wesco Aircraft Holdings, Inc.

Condensed Consolidated Statements of Cash Flows (UNAUDITED)

(In thousands)

Exhibit 4

Wesco Aircraft Holdings, Inc.

Non-GAAP Financial Information (UNAUDITED)

(In thousands, except for per share data)

Contact Information

Mark Davidson

Investor Relations

661-802-5090

Mark.Davidson@wescoair.com