reporting live in gilbert, donna rossey, abc15 news. >>> this is the biggest travel time of the year. today is when things get hairy at sky harbor. kiley is there checking out the crowd. it looks like it's slow but it's picked up big time. i will tell you the crowds are not too bad right now. i think you can handle it. you don't see any lines. you're able to come up here and drop off your bags. like you mentioned, one of the busiest travel days of the year and in all 180,000 people will fly in and out of sky harbor airport. we're here at terminal four. always southwest and american are here. this is the hub of activity as we take you up the escalator. there are important things that you need to know. first off, get here early, a couple hours before they recommend it. if you're picking people up at the airport, maybe you're not flying yourself but loved ones are coming in, they recommend using the 44th street sky train. have your guest take the sky train there which is very easy to get around. congested. here's a look at the lines now. this is the longest they have been. we're talking