Overall, 3,444 smartphones and tablets, 3,576 laptops and 996 USB drives were forgotten by travelers at airports in Chicago, San Francisco, Denver, Charlotte, Miami, Orlando and Minneapolis.
According to the research, the Transportation Security Administration's checkpoints and the restrooms were the most common places mobile devices were left behind.
Six of the seven airports surveyed donated the found mobile devices to charities or sold them at public auctions, while one indicated it turned missing phones and laptops over to police after 30 days.
Past research found that more than 60% of smartphone users not using a password on their device.
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"These research findings are a wake-up call for (chief security officers) and security managers across all enterprise organizations and SMBs," said Bob Heard, CEO of Credant Technologies, which sponsored the research. "With widespread BYOD adoption, companies must be vigilant in securing data wherever it resides."