Lambert spokesman Jeff Lea tells KTRS news 16 arrivals have been cancelled as of 10:00 a.m.and 19 departures cancelled, the majority from Chicago.
If you're heading north or east or have a connecting flight through Chicago, airlines are canceling nearly 1,000 flights at Chicago's two airports because of a winter storm that's expected to dump up to 10 inches of snow on northern Illinois.
Most the canceled flights are at O'Hare International Airport.
If you were planning to fly out of Lambert your connecting flight could be affected.
More than 2,100 flights nationwide already have been canceled for today because of the big snowstorm that's threatening the Northeast. Additional flights have been canceled through tomorrow.
The website FlightAware says United Airlines has scrapped some 900 flights for today, Delta has canceled 740 and American Airlines, about 200. The airports with the most cancellations are in the New York area and in Boston. Airlines have issued waivers that allow affected passengers to change their travel date without paying a change fee.