aaa expecting 48 million will have traveled by road or by air by the time this fourth of july weekend comes to a close. most of them some 43 million opted to drive to and from their destinations according to andrew gross from aa. the biggest difference is those traveling by car and a number of factors figureing into that. international travel is still down. cruising has not picked back up yet and people may generally feel a little more comfortable traveling by car. you can decide when you ll leave, where you re going to stop and maybe not everybody in the family is vaccinated yet. reporter: he expects families aren t being kept away by rising prices. with a gallon averaging $3.12 nationally, the highest in seven years. $11. i m at 2.5 gallons. reporter: experts say not only is summer demand to blame but a shortage of fuel truck drivers that left some service stations empty. flying this weekend, you want to