Exhibit 99.1

LANDSTAR SYSTEM REPORTS 45 PERCENT INCREASE IN DILUTED EARNINGS

PER SHARE TO A THIRD QUARTER RECORD OF $0.64

Jacksonville, FL – Landstar System, Inc. (NASDAQ: LSTR) reported 2011 record third quarter diluted earnings per share of $0.64 per diluted share, from net income of $30.2 million, compared to net income of $21.8 million, or $0.44 per diluted share, for the 2010 third quarter. Operating margin was 44.7 percent in the 2011 third quarter compared to 35.6 percent in the 2010 third quarter. Revenue for the 2011 third quarter was $684.0 million compared to $622.8 million in the 2010 third quarter. Included in the 2010 third quarter was a one-time charge of $3.8 million, or $0.05 per diluted share, related to the buy-out by the Company of its remaining contingent payment obligation from an acquisition completed in 2009.

Truck transportation revenue hauled by independent business capacity owners (“BCOs”) and truck brokerage carriers in the 2011 third quarter was $625.8 million, or 91 percent of revenue, compared to $573.5 million, or 92 percent of revenue, in the 2010 third quarter. In the 2011 and 2010 third quarters, the Company invoiced customers $72.7 million and $48.5 million, respectively, of fuel surcharges that were passed 100 percent to BCOs and excluded from revenue. Included in revenue hauled by third-party truck capacity providers in the 2011 and 2010 third quarters were $25.9 million and $20.3 million, respectively, of fuel surcharges invoiced to customers on revenue hauled by third-party truck brokerage carriers. Also included in revenue hauled by third-party truck capacity providers was revenue generated under the Company’s less-than-truckload substitute line haul service offering of $17.1 million and $48.4 million in the 2011 and 2010 third quarters, respectively. Revenue hauled by rail, air and ocean cargo carriers was $44.5 million, or 7 percent of revenue, in the 2011 third

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quarter compared to $36.2 million, or 6 percent of revenue, in the 2010 third quarter. Transportation management fee revenue generated by the supply chain solutions companies was $5.0 million and $4.3 million in the 2011 and 2010 third quarters, respectively.

Trailing twelve-month return on average shareholder’s equity was 39 percent and trailing twelve-month return on invested capital, net income divided by the sum of average equity plus average debt, was 27 percent. During the 2011 third quarter, the Company purchased 816,814 shares of its common stock under its authorized share purchase programs. In the thirty-nine week period ended September 24, 2011, the Company purchased a total of 1,013,507 shares of its common stock at a total cost of $41,966,000. Under the Company’s authorized share purchase program, the Company currently has a total of 709,000 shares of its common stock available for purchase. Landstar System, Inc. also announced that its Board of Directors has declared a quarterly dividend of $0.055 per share. The dividend is payable on December 2, 2011 to stockholders of record at the close of business on November 8, 2011. It is the intention of the Board of Directors to continue to pay a quarterly dividend.

“I am extremely pleased with the Company’s 2011 third quarter operating performance,” said Henry Gerkens, Landstar’s Chairman, President and CEO. “Revenue increased ten percent over the 2010 third quarter, even after taking into account the anticipated revenue decline in our substitute line haul service offering. Excluding the substitute line haul revenue from both the 2011 and 2010 third quarters, revenue increased 16 percent. During the 2011 third quarter, the growth rate in the number of loads hauled increased each month compared to the corresponding prior year month as we moved through the quarter. Revenue per load continued to be strong. Consolidated operating income increased 38 percent, while earnings per diluted share increased 45 percent to $0.64 per diluted share, the best third quarter diluted earnings per share in Landstar history.”

Gerkens continued, “Although I am very confident as Landstar enters the 2011 fourth quarter, the Company’s fourth quarter revenue performance in recent years has been somewhat inconsistent, especially in the latter part of the quarter. However, recent trends in September, and thus far in October, indicate continued strength in revenue per

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load and load volume. Assuming these trends continue throughout the 2011 fourth quarter, I would expect 2011 fourth quarter diluted earnings per share to be within a range of $0.62 to $0.67.”

Landstar will provide a live webcast of its quarterly earnings conference call this afternoon at 2:00 pm ET. To access the webcast, visit the Company’s website at www.landstar.com; click on “Investor Relations” and “Webcasts,” then click on “Landstar’s Third Quarter 2011 Earnings Release Conference Call.”

The following is a “safe harbor” statement under the Private Securities Litigation Reform Act of 1995. Statements contained in this press release that are not based on historical facts are “forward-looking statements”. This press release contains forward-looking statements, such as statements which relate to Landstar’s business objectives, plans, strategies, expectations and intentions. Terms such as “anticipates,” “believes,” “estimates,” “intention,” “plans,” “predicts,” “may,” “should,” “will,” the negative thereof and similar expressions are intended to identify forward-looking statements. Such statements are by nature subject to uncertainties and risks, including but not limited to: an increase in the frequency or severity of accidents or workers’ compensation claims; unfavorable development of existing claims; dependence on independent sales agents; dependence on third-party capacity providers; disruptions or failures in our computer systems; a downturn in domestic or international economic growth or growth in the transportation sector; substantial industry competition; and other operational, financial or legal risks or uncertainties detailed in Landstar’s Form 10K for the 2010 fiscal year, described in Item 1A Risk Factors, and other SEC filings from time-to-time. These risks and uncertainties could cause actual results or events to differ materially from historical results or those anticipated. Investors should not place undue reliance on such forward-looking statements, and Landstar undertakes no obligation to publicly update or revise any forward-looking statements.

About Landstar:

Landstar System, Inc. is a non-asset based provider of integrated supply chain solutions. Landstar delivers safe, specialized transportation and logistics services to a broad range of customers worldwide utilizing a network of agents, third-party capacity owners and employees. All Landstar transportation companies are certified to ISO

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9001:2008 quality management system standards and RC14001:2008 environmental, health, safety and security management system standards. Landstar System, Inc. is headquartered in Jacksonville, Florida. Its common stock trades on The NASDAQ Stock Market® under the symbol LSTR.

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Landstar System, Inc. and Subsidiary

Consolidated Statements of Income

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Landstar System, Inc. and Subsidiary

Consolidated Balance Sheets

(Dollars in thousands, except per share amounts)

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Landstar System, Inc. and Subsidiary

Supplemental Information

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