If you're catching a flight out of town today for the upcoming holiday, Denver International Airport is expecting big crowds. Officials say nearly 200-thousand passengers will pass through the gates. Travelers are being advised to be inside the airport two hours before departure. Flight status and security wait time information is available at FlyDenver.com. While today is the busiest for DIA ahead of Christmas, next Thursday is expected to be the most crowded of the entire holiday season.