Thirty-nine million Americans are expected to hit the road this Thanksgiving weekend, but possible bumper to bumper traffic isn't the only challenge facing holiday travelers.
Other challenges include a shortage of rental cars in the Northeast, rough weather in the Northwest, and a major worker protest at one busy airport.
AAA calls the day before Thanksgiving the busiest travel day of the year. Millions of Americans will travel by cars, planes, and trains, navigating sometimes tricky conditions to make it to their destinations.
A intense weather system of rain in Oregon and Washington will make for tough travel, but experts predict any flight delays are not likely to ripple across the country.
"Seventy-five percent of the country will be rain free. Northwest, not so great, we will see heavy rain and mountain snows continuing," Justin Povick, a meteorologist with Accuweather, said.
In Los Angeles, a major airport worker protest, not weather, will be delaying travelers. Passengers at LAX are advised to give themselves a three-hour cushion at the airport and an extra 90 minutes to get there.
"This is part of the fun of it all is to go fight, fight, the fight and to fight the crowds," one passenger at LAX said.
Airlines struggling to save on jet fuel have aso cut the number of flights, leading to a jump in airfares. That's part of the reason 39 million people are expected to drive instead to their Thanksgiving get-togethers.
AAA advises hitting the road early to avoid potential parking lots on highways during evening rush hour.
In the Northeast, holiday travel will be a bit more complicated especially for those planning to rent a car. Companies say there's a shortage of cars because of vehicles damaged by Superstorm Sandy. The few cars left are going for hundreds of dollars a day.
Millions of people will also be traveling by train. Amtrak is adding extra trains and even borrowing some from Canada to handle the holiday rush.