In another sign that a sense of normalcy is taking flight, air travel has rebounded to about 75% of where it was at this time in 2019.

The Transportation Security Administration (TSA) said it screened over 2 million travelers Friday at U.S. airport security checkpoints — almost 31,000 of those passengers were screened at San Diego International Airport.

It’s the highest volume of airport traffic since March 2020 when the coronavirus pandemic brought travel to an abrupt halt, but the long-awaited moment is creating new challenges for travelers and airports.

“The lines were crazy, not just at TSA, but dropping bags and everything,” said MaryCay Durrant upon returning home to San Diego after visiting family in Minnesota for a few days. “I didn’t get on a plane for over a year and all of a sudden, in the last month I’ve been on nine planes in three weeks.”

The surge in travelers taking to the skies is causing a summer staffing scramble.

Busier airports are causing longer wait times, putting more pressure on the TSA as the agency faces the same staffing challenges as so many other industries, while demand quickly ramps up from historic lows.

The Transportation Security Administration (TSA) said it screened over 2 million travelers Friday at U.S. airport security checkpoints — almost 31,000 of those passengers were screened at San Diego International Airport.

Frustrations extend from the airport to curbside, as many drivers quit during the pandemic and began working for delivery services where they often have opportunities to make more money — the driver shortage prompting Uber to offer incentives to bring them back.

“Once you get to an airport, there’s very little means of transportation like taxis and Ubers,” added McGraw.

Durrant told NBC 7 if the pandemic taught us anything, it’s patience, and that’s what we’ll all need moving forward.

“I think it’s a lot about taking the connection and compassion we learned during the pandemic and let’s grant that to each other while TSA and others figure out how to right staffing,” she said. “Take some extra time, bring a good book or a good companion to talk to.”

As we take to the skies again, it’s important to remember that it’s still a federal requirement to wear masks in airports as well as on planes.

In California, masks will still be required on airport property even after most Covid-19 restrictions drop when the state fully reopens on June 15. The state mandate in airports will run to at least early September.