Bad weather has caused an historic number of flight cancellations and delays in and out of U.S . Read more : Passengers behaving badly . The U.S. Department of Transportation said it was investigating the cause of a series of crashes that have stranded thousands of travelers at airports across the country. They 've cost airlines an additional $ 75m to $ 150m .
Bad weather has caused an historic number of flight cancellations and delays in and out of U.S . The U.S. Department of Transportation said it was investigating the cause of a series of crashes that have stranded thousands of travelers at airports across the country. They 've cost airlines an additional $ 75m to $ 150m .