Flying out of Los Angeles International Airport is about to feel a little different. The Transportation Security Administration is installing advanced 3D scanners as part of a $781.2 million nationwide upgrade. The new machines promise sharper images, fewer manual bag checks, and shorter security lines for busy travelers.
They also bring a few new rules that passengers should understand before arriving at the airport. Here is what to expect at LAX in the coming months.
A closer look inside bags
The biggest change comes from computed tomography, or CT, scanners, now arriving steadily at Los Angeles International Airport security checkpoints. Unlike older X-ray machines that produce flat, two-dimensional images, these advanced scanners create highly detailed 3D views of every carry-on bag. Officers can rotate each image and inspect items from multiple angles without ever needing to open most bags by hand, according to the Transportation Security Administration.
That extra clarity also significantly reduces the need for manual searches in many common situations found at crowded checkpoints. Travelers may notice that the entire screening process feels smoother because officers can review bag contents more efficiently than before this technology existed. The upgrade gives officers a fuller picture of every single bag without slowing down the line for everyone waiting behind you.
Say goodbye to unpacking
At checkpoints with new CT scanners, many travelers may be allowed to leave laptops and TSA-compliant liquids in their bags. That means fewer plastic bins to manage and far less rushing around while other people wait behind you at a crowded, busy checkpoint. Packing stays simple, and the whole security process feels noticeably less chaotic and stressful than it used to.
Keeping your belongings neatly packed in a single bag saves valuable time for both passengers and the officers working the security line. It also significantly reduces the chance of accidentally leaving something behind at the checkpoint during a rushed early-morning departure. The result is a calmer, more relaxed walk through security for many flyers heading toward their departure gate.
Officers get clearer images
The new CT scanners are not only about added convenience for travelers moving through a busy security line each day. They also give officers far clearer, more detailed images of exactly what is packed inside each carry-on bag. That extra visual detail helps them identify suspicious objects with far greater confidence while reducing unnecessary secondary searches performed at the checkpoint.
More accurate screening technology supports both passenger safety and overall checkpoint efficiency, working together simultaneously. Instead of relying on flat, fairly limited images, officers can now inspect different layers of a bag entirely without ever opening it by hand. That makes it far easier for trained officers to separate harmless everyday items from those that genuinely need a closer look.
Faster lines for travelers
Airport security lines often slow down considerably because travelers stop mid-line to unpack laptops and other electronics from their bags. When fewer people need to reorganize their belongings at the very last minute, the entire screening line can move at a steadier, more predictable pace. That benefits everyone standing patiently in line, especially during busy peak summer travel seasons at LAX.
Wait times still depend heavily on overall passenger volume and staffing levels present at any given checkpoint on a given day. Still, the newly updated scanners are expected to reduce some of the common delays travelers have grown accustomed to over the years, according to KTLA. Faster screening generally means considerably less time standing in line before boarding.
Fun fact: LAX opened in 1928 as a dirt-runway airfield, first known as Mines Field, named after a real estate agent.
One catch for oversized bags
There is one particularly important detail travelers should know well before heading to LAX for their next scheduled trip. Exceptionally large carry-on bags may require alternate screening or, in some cases, need to be checked with the airline. Bags that barely managed to fit through security checkpoints before could now unexpectedly create a problem right at the scanner itself.
If a carry-on bag cannot physically pass through the new scanner, passengers may need to step out of the security line entirely. Returning to the airline counter to check that particular bag before boarding adds noticeable extra time to an already busy travel day. Measuring your luggage carefully before ever leaving home could help you avoid that entire inconvenience altogether on your next trip.
Carry-on rules matter more
Many travelers have grown quite comfortable squeezing oversized bags through airport screening equipment over the years without much trouble. The newer scanners leave far less room for that familiar approach because they now come with much stricter physical size limits. Anything entering the scanning tunnel now has to fit properly inside, regardless of how carefully the bag was originally packed.
This development does not mean that official airline carry-on size rules have changed in any real, meaningful way. Still, every day, properly sized carry-on bags are less likely to encounter screening issues with some CT equipment, in practice, if a bag simply cannot fit through the scanner opening. Packing a properly sized bag ahead of time may save travelers valuable time and prevent last-minute surprises right at the busy checkpoint.
Film photographers need caution
Travelers who still rely on traditional film cameras should pay especially close attention to this important new screening process at LAX. The considerably stronger imaging technology used inside modern CT scanners can seriously damage unprocessed photographic film during even a single screening pass. This particular risk applies even when film is stored safely inside a camera bag or a separate protective pouch, according to PetaPixel.
Photographers carrying film rolls through security should always ask officers directly for a manual inspection before placing their bags through the scanner. Taking that small extra step can help protect valuable photos that simply cannot ever be replaced once the film has been exposed to radiation. A short delay at the checkpoint is honestly a small price to pay for saving irreplaceable travel memories.
A nationwide security investment
The security upgrade underway at LAX is part of a much larger federal effort to modernize airport security nationwide. The Transportation Security Administration is investing more than $781 million total to expand advanced screening technology across the entire country this year, according to SimpleFlying. Major transportation hubs throughout the nation are steadily receiving these new machines as funding and staffing levels allow.
As more airports adopt the new scanners, travelers could reasonably expect a more consistent screening process on future domestic trips nationwide. The overall goal remains improving passenger safety while making routine airport screening noticeably less frustrating for the millions of passengers who travel each year. LAX and similar major hubs are expected to see steady upgrades to checkpoints throughout the coming months.
Little-known fact: LAX is one of the world’s busiest origin-and-destination airports, meaning many passengers begin or end their trips there rather than simply connecting.
TL;DR
- TSA is rolling out $781.2 million worth of advanced 3D CT scanners nationwide, with LAX among the first major hubs.
- Travelers can often leave laptops, tablets, and approved liquids packed inside bags during screening.
- CT scanners provide officers with rotating 3D images, reducing the need for manual bag searches and secondary checks.
- The new machines have smaller openings, so oversized carry-on bags may get pulled aside.
- Film photographers should request a hand inspection, since CT scanners can damage unprocessed film.
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This article was made with AI assistance and human editing.
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