Normality returned to Baltimore-Washington International Thurgood Marshall Airport late Sunday morning with security lines taking travelers just a few minutes.

Earlier Sunday the lines at Transportation Security Administration checkpoints did stretch outside for up two hours, but they were nothing like Saturday when some fliers reported waiting more than four hours.

Airport officials had recommended that travelers arrive four hours before their scheduled flights on Sunday. The airport did say on its website that wait times are expected to improve Sunday, “but remain longer than normal.”

Concourses A, B and C — serving American and Southwest airlines — will be most impacted, the airport said.

Over the last week as spring break kicked off amid an ongoing partial federal government shutdown that’s left airports understaffed, wait times at BWI have increased from mere minutes to several hours.

The government shutdown has left thousands of TSA workers without pay for more than five weeks. It’s the second time they’ve gone unpaid for weeks because of a government shutdown in the last six months.

More than 500 workers have quit so far, according to the Department of Homeland Security.

President Donald Trump signed an executive order on Friday to pay TSA workers as soon as Monday. Still, more than 35% of BWI’s TSA workers called out on Saturday.

The Department of Homeland Security did not respond immediately to a request for Sunday’s callout numbers.

More TSA workers may be returning to work after President Donald Trump signed an order to pay them Monday despite the shutdown.

Adding to the chaos of this year’s spring break travel is the arrival of Immigration and Customs Enforcement officers at BWI and other airports nationwide.

ICE officers were deployed to the local Baltimore airport on Saturday afternoon to provide “operational support” to TSA personnel, according to a news release from the Maryland Aviation Administration.

Maryland Gov. Wes Moore said on social media that the ICE agents are there only to speed up the security clearance process, not for immigration enforcement.

On Friday, an abrupt temporary ground stop due to an odor at a shared air traffic control center added to the day’s travel pandemonium at BWI, Regan National Airport and Dulles International Airport.

While BWI is recommending arriving at least four hours before travelers’ departure times, some who traveled Saturday said four hours wasn’t enough time to make it on board their flights.

But Southwest is notifying its BWI customers Sunday to arrive two hours before domestic flights and three hours before international travel.

While there were lines earlier at security checkpoints for Concourses A, B and C, they’d all but disappeared by 11 a.m. And Concourses D and E — home to Delta, Frontier and Spirit airlines — had no lines Sunday.