St. Louis, MO  (KTRS)  The busy Thanksgiving travel season is underway at Lambert Airport.

Airport officials say the travel season which began on Friday, increases up to twenty-percent. The biggest single travel day of the holiday for Lambert is project on Sunday.

Lambert, TSA and Airline officials offer a number of travel tips to make it easier for passengers during the busy travel season:

Arrive 2 hours ahead of a scheduled flight, especially if checking-in luggage or flying internationally.

TSA Pre-Check is available at all checkpoints with participating airlines.

Liquids must be in 3.4 ounce containers or less; put in a quart-size, clear, plastic zip-top bag.

Do NOT wrap holiday gifts.

Remember to retrieve all items from the checkpoint after they pass through the security scanners.

If picking up a passenger from Lambert Airport use one of the free cell phone lots instead of the parking garages.

For more information on prohibitive items, traveling with children, food and gifts, go to www.tsa.gov.

Contact your airline for the latest flight information or check the status of all flights to and from Lambert here.