Today and tomorrow mark the busiest travel days of December, and already North Texans are jetting off for the holidays.
So where are the biggest delays?
Travelers might run into holiday delays at the nation's airports, as bad weather slows down operations, from snow in the northeast, to mudslides in the west.
Strong storms forced airport officials at LAX to issue a travel advisory.
Passengers heading to California from D/FW scheduled early flights to avoid problems.
But thousands of worried passengers are stranded in airports in Europe, from Paris, to Frankfurt, to London.
Travel has nearly come to halt because of snow and ice.
Kathleen Cadigan from North Texas is trying to get home from London.
"I have been studying abroad since August, so I haven't been home in a long time. Obviously, I want to be home for Christmas," she said by phone.
"Our flight has been delayed already and we are not sure if we are going to make it out, that's my status now," she said.
Cadigan told us passengers were trapped at London's Heathrow and that terminals had been transformed into shelters.
"They gave people tin foil to keep them warm. You couldn't see the floor because of so many people trying to sleep. The lines are so long," she added.
Conditions are improving but the journey home for Christmas might still be in jeopardy.
While Heathrow opened a second runway Wednesday, delays and cancellations were still expected because more wintry weather is on the way.
One D/FW flight to London has been canceled, the rest are on schedule.