The Federal Aviation Administration is asking flights headed to Chicago's O'Hare International Airport that are still on the ground to delay takeoff.
High winds caused 300 flight cancellations Tuesday at the airport, a major hub for American and United airlines. The FAA is asking flights to hold on the ground before taking off for O'Hare to allow the airport to catch up.
FAA spokesman Tony Molinaro says flights already in the air are being allowed to land at O'Hare.
Delays were more extreme earlier this morning when O'Hare was able to use only two runways for arrivals and one for departures.
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