Few disruptions were reported early Wednesday as the biggest travel day of the year began, with calm weather across most of the country.
A handful of delays were reported among departures from Baltimore/Washington International Thurgood Marshall Airport, according to the airport's website. But airport spokesman Jonathan Dean said conditions were good for travel and reported no significant lines at airline ticket counters or security checkpoints.
Flights to and from Chicago have been affected by fog there, Dean said. Some flights to the Windy City have been canceled.
Traffic was moving swiftly on most area roadways, according to the Maryland Department of Transportation. And no delays were reported on area transit, according to the Maryland Transit Administration.
Dry, mild weather is in the forecast for most of the country Wednesday, according to the National Weather Service. The main exception to that is in the northwest, where heavy snow is possible across parts of Washington, Oregon, Idaho and Montana.