DENVER — Denver International Airport is set to see more than 85,000 passengers to move through TSA on Sunday — what is expected to be the airport's busiest day during the Fourth of July holiday travel period.

Airport spokesperson Keylen Villagrana said the single-most important thing passengers can do happens before they ever reach the terminal.

✈️ WATCH: Here's what airport officials say you should do before you even leave your house.

Tips for navigating DIA during the Fourth of July travel surge

That starts with checking FlyDenver.com, which gives travelers real-time information on parking lot capacity and wait times at all security checkpoints before and during their trip.

DIA's newly installed East and West security checkpoints are also helping move passengers faster than before, with more lanes and updated technology — including facial recognition — designed to speed up the screening process, according to Villagrana.

"We've definitely seen just much more efficiency ever since we've installed East and West security checkpoints," Villagrana said.

Traveler Keisha Walter had advice of her own for anyone navigating the busy airport this weekend.

"Take your time, take a deep breath, relax. We're all in the same position," Walter said.

Thursday alone saw 3 million passengers move through security checkpoints across the country.

Despite the crowds, Villagrana said DIA's mission stays the same.

"The end goal is always to get you to your gate as smoothly and efficiently and safely as possible," Villagrana said.

This story was reported on-air by a journalist and has been converted to this platform with the assistance of AI. Our editorial team verifies all reporting on all platforms for fairness and accuracy.