AAA spokesman Mantill Williams says more than 34 million of those holiday travelers will be going by car. He says high gas prices may mean people make some plan changes, but the cost won't cancel trips.
Williams says the floods in the Northeast likely won't have a big impact on travel.
An air travel expert predicts "one of the heaviest if not the heaviest" July 4 weekends ever. But Terry Trippler of Travel Passport says there shouldn't be too much of a "crush of people" at airports. He says many people will take a longer vacation because the Fourth falls on a Tuesday.