Winter weather slows travel across U.S.

Updated 9:28 AM ET, Wed January 8, 2014
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Passengers unload their luggage at Chicago's Union Station after their Amtrak train became stuck in snow drifts on Tuesday, January 7. Andrew A. Nelles/AP
A man walks past a snow-covered bicycle in Chicago on January 7. Andrew A. Nelles/AP
People ride a street car in New Orleans as temperatures in the area plummeted below freezing on January 7. Sean Gardner/Getty Images
A passenger waits for a train to arrive in Chicago on January 7, when temperatures were below zero. Scott Olson/Getty Images
JetBlue passengers in Boston wait for normal flights to resume at Logan International Airport on January 7. Darren McCollester/Getty Images
A man takes a nap at Logan International Airport after his flight was canceled Monday, January 6. Charles Krupa/AP
Commuters wait for a Virginia Railway Express train to arrive at Washington's L'Enfant Plaza on January 6. Andrew Harnik/The Washington Times/Landov
A Delta Air Lines plane is de-iced at Chicago Midway International Airport on January 6. Kiichiro Sato/AP
A commuter walks past warming lamps at a Chicago train station on January 6. Charles Rex Arbogast/AP
A jet is de-iced at Gerald R. Ford International Airport in Grand Rapids, Michigan, on January 6. Chris Clark/MLIVE.COM/Landov
A man and woman do their best to get comfortable while stranded at Lambert-St. Louis International Airport on Sunday, January 5. Jeff Roberson/AP
Travelers get off a shuttle bus at Chicago O'Hare International Airport on January 5. Nam Y. Huh/AP
A passenger takes a nap inside Los Angeles International Airport on Friday, January 3, after his flight was canceled because of the weather on the East Coast. Nick Ut/Ap
An airplane is de-iced at Ronald Reagan Washington National Airport on January 3. GARY CAMERON/reuters/LANDOV
Snowplows clear snow from one of the runways January 3 at John F. Kennedy International Airport in New York City. ANDREW GOMBERT/EPA/LANDOV
Travelers in Boston leave the Back Bay train station on January 3. BRIAN SNYDER/REuters/LANDOV
An airport employee clears snow at New York's LaGuardia Airport on January 3. ZORAN MILICH/reuters/LANDOV
Travelers wait in line January 3 at Chicago Midway International Airport. Antonio Perez/Chicago Tribune/MCT/LANDOV
A plane takes off from Newark Liberty International Airport in Newark, New Jersey, as trucks plow snow on the tarmac January 3. Julio Cortez/AP
A woman sleeps on the floor of New York's JFK Airport on January 3. ANDREW GOMBERT/EPA/LANDOV
Cars sit covered in snow at Chicago O'Hare International Airport on Thursday, January 2. Nam Y. Huh/AP
Icicles hang from a window looking onto airplanes at Logan International Airport in Boston on January 2. DOMINICK REUTER/reuters/LANDOv