By Jeanne Bonner, CNN
(CNN) — Standing in a long line at the airport isn’t always the worst thing. For many travelers, it’s standing in a long line at the airport and watching while other passengers sail past.
That’s because travelers enrolled in TSA PreCheck or a service called Clear can reduce the amount of time they have to wait in lines at Transportation Security Administration checkpoints by bypassing standard screening lines for separate, often quicker vetting procedures.
And air travelers without expedited access are increasingly becoming frustrated by this moving-to-the-front scenario as short-staffed security checkpoints continue to paralyze some airports amid the partial government shutdown affecting the TSA.
In normal times, the expedited passage might mean shaving a few minutes off wait times, which doesn’t create a big disparity.
But as TSA officers who are working without pay decide to call out sick, wait times at some airports including George Bush Intercontinental Airport in Houston have stretched to four hours.
Airports across the country are bracing for another crush of weekend travelers as Congress keeps haggling over how to end the partial government shutdown that has driven mounting TSA staff shortages and the longest security wait times ever.
So paid access to either fast-lane service is saving some people a major headache this week. But it raises concerns that the current system appears to privilege travelers with more money.
In addition to TSA PreCheck and Clear, travelers going overseas may also enroll – for a price – in Global Entry or other programs aimed at expediting frequent flyers between specific countries.
But the current chaos means even paying for expedited services doesn’t always mean a significant reduction in hassles.
“They don’t eliminate delays but they do move faster,” Debbie Iannaci, communications chief for Global Business Travel Association, told CNN Travel.
In the case of Clear, it hasn’t always been guaranteed to be available during the shutdown. At George Bush airport in Houston, only “standard screening is available” right now, a spokesperson for Clear told CNN Travel on Wednesday, and Clear customers were out of luck.
Here’s what to know about these services.
What is TSA PreCheck?
Travelers who enroll in TSA’s PreCheck program access designated lines at US airports that allow them to avoid taking off their shoes or remove their laptops from their bags before going through security.
It costs about $80 and is good for 5 years according to the TSA’s website, which is not being updated during the shutdown. The agency didn’t respond to comment when contacted by CNN Travel on Wednesday.
To join, travelers need to go in person to an enrollment center to be fingerprinted and submit their documents. Some CVS pharmacy locations offer the enrollment service via a biometric screening station furnished by a company called IDEMIA.
It’s available at about 200 airports and is run by the federal government. Travel pros continue to recommend it, even as lines have ballooned this week.
“PreCheck allows known, vetted travelers to move more efficiently through checkpoints while enabling TSA officers to focus their time and attention where it is most needed,” Iannacci said in an email.
But, she added, these are difficult times for air passengers and nothing is guaranteed.
“Under the current conditions created by the U.S. government shutdown … we see that system under increasingly visible strain,” she said.
Fair warning: The application process isn’t the kind of tas