Press Release

US Airways Selects Passur(R) Products for Multiple Locations

Key for Cost-Control During Expansion, and Providing Exact Information to Customers

GREENWICH, Conn., Sept. 15, 2006 -- Megadata Corporation (OTC: MDTA) announced today that US Airways has contracted for PASSUR applications at US Airways' major hubs and large Northeast stations to help improve baggage and on-time performance and enhance the customer experience in a cost-effective way. PASSUR applications began rolling out at Phoenix, Philadelphia, Charlotte, New York LaGuardia, and Washington National August 1.

"We're excited by the savings and improved customer satisfaction that will come from the proper integration of the product into the work systems of US Airways. We anticipate eventually implementing additional PASSUR applications in multiple phases throughout the airline," said David Seymour, Vice President Operations Control and Planning for US Airways.

"We're excited to be delivering our targeted solutions, focusing on the Systems Operations Center as well as their individual stations," said Ron Dunsky, Megadata Vice President of Marketing and New Product Development. "We've been impressed by US Airways' methodical approach to their solution purchase and look forward to a thriving partnership," said Jim Barry, Megadata President and CEO.

PASSUR airline solutions are realized through the integration of pinpoint prediction of arrival times, instant airspace analysis, and thorough post-operations evaluation tools. In the first phase, US Airways will be using PASSUR solutions at the station operations level to:

-- Improve aircraft "met at the gate" numbers, so that 
   airplanes are not waiting for staffing at gates to 
   complete their flights; 
-- Provide more timely and accurate information about 
   meeting airplanes to improve baggage handling and 
   dependability;
-- Optimize hold/no-hold decisions - PASSUR helps airlines 
   make better decisions about releasing flights in time for 
   connections; and
-- Analyze historical databases, allowing improved 
   post-operative evaluations.

The next phase of implementation will focus on System Operations issues, including:

-- Optimized fuel management through more accurate 
   predictions of aircraft hold times in the terminal 
   airspace;
-- Real-time decisions support to mitigate diversions
   related to weather and ATC issues; and
-- Continued evaluation of airport/airspace utilization 
   allowing improved operational decisions.

US Airways and America West's recent merger creates the fifth largest domestic airline employing nearly 35,000 aviation professionals. US Airways, US Airways Shuttle and US Airways Express operate approximately 3,800 flights per day and serve more than 230 communities in the U.S., Canada, Europe, the Caribbean and Latin America. US Airways is a member of Star Alliance, which provides connections for our customers to 842 destinations in 152 countries worldwide. This press release and additional information on US Airways can be found at http://www.usairways.com (LCCG).

Megadata owns and operates PASSUR, a national network of multiple, live flight information sources feeding a single, integrated database that is becoming the de facto standard of independent, complete, timely, and accurate information for the aviation industry. It includes the unique network of PASSUR radar installations in the US, Canada, Europe, and Asia. The company's principal business is the delivery of flight information, application software, and web-delivered collaborative decision tools to the aviation industry and organizations that serve, or are served, by the aviation industry. Megadata distributes its products through a direct sales force, and through premier aviation decision-support technology firms.

Visit Megadata's web site at http://www.passur.com for updated products, solutions and PASSUR news.

The forward-looking statements in this news release relating to management's expectations and beliefs are based on preliminary information and management assumptions. Such forward-looking statements are subject to a wide range of risks and uncertainties that could cause results to differ in material respects, including those related to customer needs, budgetary constraints, competitive pressures, the success of airline trials, the profitable use of the Company's owned PASSURs located at major airports, the Company's maintenance of above-average quality of its product and services, as well as potential regulatory changes. Further information regarding factors that could affect the Company's results is contained in the Company's SEC filings, including the October 31, 2005 Form 10-K and July 31, 2006 Form 10-Q.

Contact:

Ron Dunsky
(203) 622-4086
(917) 587- 9672
rondunsky@passur.com

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