About 30,000 passengers are expected to travel through the Dane County Regional Airport this weekend.
The Quinn family from Verona is one of the families traveling for the Thanksgiving holiday.
"I don't think there was a whole lot of preparation until this morning, but it's been a pretty calm day so far," said Greg Quinn.
The Quinn are flying to Denver for Thanksgiving. Denise Quinn said they're thankful they won't have to go through Chicago's O'Hare Airport.
"We woke up this morning to a lot of fog but figured it would burn off by a 1:10 flight," Denise Quinn said.
Dense fog Wednesday morning caused big problems in Chicago. More than 90 flights were canceled and 400 were delayed because of low visibility.
The fog also delayed about a handful of flights out of Madison.
"With the fog earlier today in Chicago and Madison, we had some minor delays," said Brent McHenry, director of marketing and communications for the Dane County Regional Airport. "Beyond that, no mechanicals; we've had no other aircraft issues."
According to AAA, holiday travel is up for the fourth year in a row. More than 780,000 people are expected to hit Wisconsin roadways this weekend.
"This is the first (trip) we've taken together and it's been nice, pretty smooth so far," said Bailey Kraemer, of Mercer, a newlywed traveling with his wife.
The Kramers are making stops in Madison and the Milwaukee area.
"Make sure you check everything before you go like just checking our hood to make sure it was all latched down," says Kraemer.
Niel Petersen and his wife, who were filling up their gas tank in DeForest, are traveling from Minnetonka to Fitchburg for the holiday.
"Earlier would be better than later. I'm sure the traffic will be real heavy by Sunday night," Petersen said.
Vesna Hampel-Kozar is traveling from Minnesota with her husband and their sons. They drove through Wisconsin Dells on their way to Milwaukee.
"I would keep a look out for some deer. I think we counted about 35 on the side of the road so far," Hampel-Kozar said.
Brigitte Tiarks and Roland Biro were heading from Minneapolis to Chicago.
"Enjoy the trip. Don't get too stressed out if there's traffic. Just to know that it kind of comes with the territory when you're road tripping," Tiarks said.
Shirley Posey, also from Minnesota, is taking her brothers and her daughters to see her parents in Madison, Ill. She recommended travelers plan their route in advance to keep their trip as short as possible.
"Take a short cut. I cut across 694 instead of Interstate 94. It went well. We didn't go through St. Paul," Posey said.