Flying for the holiday this week? Prepare for crowds, as Chicago's O'Hare International Airport is poised for its "busiest Thanksgiving travel season on record."

According to the Chicago Department of Aviation, nearly two million people will pass through O'Hare and Midway Airports, starting Tuesday. The stretch is expected to last through Monday, Dec., 1, with airlines projecting a "Thanksgiving surge," the CDA said.

The latest numbers come after the Federal Aviation Administration earlier this month lifted the unprecedented flight restrictions it placed on airlines during the longest government shutdown in history, with thousands of flights canceled.

Now, the FAA is preparing for its busiest Thanksgiving in 15 years, with more than 360,000 flights nationwide scheduled and more than 17.

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