Miami International Airport's Concourse G closed at 12:45 p.m. on Saturday - 15 minutes earlier than planned - as the federal government remained shut down for a 22nd day, making it the longest shutdown in US history.
In addition, around 800,000 federal employees have been on furlough or are being forced to continue working without pay, costing the United States economy an estimated several billion dollars to date.
Frustration took shape during a demonstration Thursday where some TSA employees voiced their concerns by rallying outside the airport's busy domestic terminal.
At New York's LaGuardia Airport, fliers had to wait in almost hour-long security lines on Sunday.
But local officials at the county-owned airport and federal managers are bracing for more workforce disruptions if the shutdown continues. Should more TSA workers call in sick, the county-owned airport is ready for more checkpoint closures.
On this side of the border, YVR spokeswoman Andrea Pham said all operations at Vancouver International Airport were "normal" on Saturday, but recommended passengers check their flight status before heading for the airport.
TSA hasn't heard of any other airport planning to shut an entire concourse like the one in Miami, Bilello said.
"Security standards have NOT and will NOT be compromised", tweeted TSA spokesman Michael Bilello. Airports in San Francisco and Kansas City already do that, with approval from the Transportation Department. "MIA does not anticipate any significant impacts to flight schedules or the passenger experience from any gate changes". Most dropped the idea after TSA's performance improved.
The screeners are among the lowest-paid federal employees.
Allegheny County Airport Authority, which manages Pittsburgh International Airport and Allegheny County Airport, is committed to transforming Pittsburgh's airports to reflect and serve the community, inspire the industry, and advance the region's role as a world leader.
"It is completely unacceptable that the women and men who risk their lives safeguarding our airports are still required to report for work without knowing when they'll be paid again", AFGE National President J. David Cox Sr. said.
In downtown Dallas, dozens of workers and union members representing various federal agencies gathered to bring attention to the plight of families hit by the impasse and to implore President Donald Trump to work with Congress to end the funding fight.