Glider crash happened in front of thousands of spectators.
Officials at Lambert International Airport says the bulk of its cancellations and delays will be this morning.
More than two dozen St. Louis arrivals and departures had been cancelled by mid-morning.
Keith Calhoun, the Lebanon plant manager with Emerson Electric, said a new hub at St. Louis would mean less time, less money and more efficiency. Currently his goods take off from Chicago.
Minor delays caused at Lambert on one of the busiest travel days of the year.
Afternoon and evening New York and Newark flights impacted
More than 18 months after a tornado ripped through Lambert Airport in St. Louis, work is about to begin to make over two entrances damaged by the twister.
Spokeswoman says first officer had chest pains.
A pilot program under way at Lambert Airport in St. Louis seeks to reduce waste from leftover food.
A warning light came on, indicating possible problems with the engine.