The US Department of Transportation said it will look into flight cancellations by Southwest Airlines that have left travelers stranded at airports across the country amid an intense winter storm that has killed dozens of people.
Many airlines were forced to cancel flights due to the weather, but Southwest was by far the leader in canceled flights. About 4,000 domestic U.S. flights were cancelled Monday, according to the tracking website FlightAware, and 2,900 of those were Southwest’s.
