reporter: tonight, holiday air travel soaring back to near prepandemic levels. i knew it would be the busiest, but i still have to make the trip. reporter: wednesday, the busiest of the season so far. flightaware showing the crowded skies from 6:00 a.m. to noon. planes swarming from coast to coast. tsa screening more than 9.5 million passengers since sunday. when it comes to thanksgiving holiday travel, houston airports is seeing a larger crowd than it did in 2019. reporter: so far, major airlines only seeing four flights canceled. united zero. but for some, trying to avoid the travel crunch by flying thanksgiving day didn t go as planned. it was actually pretty bad, like, hours.as delayed for, - reporter: and it s not just the skies. nearly 49 million americans are hitting the roads despite record-breaking costs at the pump. gas prices are the highest we ve ever seen for thanksgiving. i filled up my car i think before i came up here. it was $5.40 something.