If you haven’t been paying attention to what’s changed at airport security lately, now’s the time. TSA dropped several warnings and rule changes heading into 2026 that affect pretty much everyone who flies — from the ID in your wallet to the battery pack in your bag. Some of these changes will cost you money. Others could get you arrested. None of them are optional.
Here’s what you actually need to know, broken down by what matters most.
The $45 Fee For Not Having A REAL ID
Starting February 1, 2026, if you show up to a TSA checkpoint without a REAL ID-compliant driver’s license or an acceptable alternative (like a passport), you’re going to pay a $45 fee. That’s not a fine, exactly — it’s part of a new program called TSA ConfirmID. You pay the money, they verify your identity through alternative methods, and you get a 10-day window to fly. After that? You pay again.
This isn’t a permanent workaround. It’s a Band-Aid designed to keep people from being stranded at the airport while TSA shifts from “Hey, you should really get a REAL ID” to “We’re serious now.”
REAL ID has been talked about for years. The requirement officially kicked in on May 7, 2025, for all adult travelers on domestic flights. But a lot of people ignored it because there wasn’t much enforcement. That’s over. TSA’s early data after the ConfirmID rollout shows 95-99% of travelers are now showing up with proper ID. The $45 stick is working.
How To Get A REAL ID Before Your Next Flight
If you haven’t gotten one yet, look at your driver’s license right now. See a gold or black star in the upper corner? You’re good. No star? You need to take care of this.
You can get a REAL ID at your state’s DMV, and in some states through AAA offices or even online. You’ll need to bring your birth certificate, your Social Security card, and proof of your current address (a utility bill or bank statement works). The process varies by state, but plan to spend at least one afternoon dealing with it. Some states let you schedule an appointment, which I’d strongly recommend unless you enjoy sitting in a plastic chair for three hours.
If you already have a valid U.S. passport or passport card, that works too. You don’t need both a REAL ID and a passport — either one will get you through security for domestic flights.
What To Do If You Forgot Your ID At The Airport
It happens. You’re rushing out the door, you left your wallet on the kitchen counter, and now you’re standing at the checkpoint with nothing but your boarding pass and a sinking feeling.
Under the new ConfirmID program, you can actually pay the $45 fee before you even get to the airport by visiting TSA.gov/ConfirmID. You’ll get a receipt from pay.gov by email. At the airport, show the receipt (printed out or a screenshot on your phone) along with whatever government-issued ID you do have, and follow the TSA officer’s instructions. It’s not fast, and you should expect longer wait times, extra questions, and the real possibility of missing a tight connection.
One more thing: travel insurance won’t cover you if you miss your flight because of ConfirmID delays. That’s on you.
TSA PreCheck Won’t Save You From REAL ID Requirements
I’ve seen people assume that because they have TSA PreCheck, they don’t need to worry about REAL ID. Wrong. PreCheck gets you a faster line and you don’t have to take your laptop out, but it does not replace the need for proper identification. You still need a REAL ID or passport to get through the checkpoint.
If you don’t have PreCheck and you’re a frequent flier, it’s worth the $78-$85 enrollment fee. You apply online, visit an enrollment center for fingerprints and a photo, and typically get approved in 3-5 days. Membership lasts five years and works at over 200 U.S. airports.
You Can Keep Your Shoes On Now
Here’s some actually good news. As of July 2025, the TSA ended the shoes-off policy at domestic airport checkpoints. You can walk right through with your sneakers on. This has been one of the most universally hated parts of flying since the early 2000s, so yeah, it’s a welcome change.
There’s a catch — TSA officers can still ask you to remove your shoes if they need to do extra screening. But for the vast majority of travelers, the shoe shuffle is done. Keep your socks to yourself.
Lithium Batteries Are Getting Serious Enforcement
This one catches people off guard because the rules have technically been around for years, but TSA and airlines are now enforcing them with zero tolerance.
The basics: all power banks and spare lithium-ion batteries must go in your carry-on bag. Never put them in checked luggage. This is a fire safety issue — lithium batteries can overheat and ignite, and if that happens in the cargo hold, nobody can get to it.
If you have a smart suitcase — one of those with a built-in battery for charging your phone or GPS tracking — the battery must be removable by hand. Not with a screwdriver, not with a coin. By hand. There’s already been a case where someone had to abandon an expensive smart suitcase at the airport because the battery required tools to remove. TSA wouldn’t make an exception, and they won’t make one for you either.
Some airlines are now requiring you to keep battery packs on your person — in your pocket or personal item — rather than in the overhead bin. Check your airline’s specific rules before you fly.
Carry-On Bags Are Getting Measured At The Gate
Airlines have always had carry-on size limits, but enforcement has been inconsistent. That’s changing in 2026. Gate agents are now actively checking bag dimensions right before boarding, and if your bag doesn’t fit the sizer, you’re paying a gate-check fee. Those fees are almost always more expensive than if you’d just checked the bag at the counter. We’re talking $35-$75 depending on the airline.
Before you head to the airport, measure your bag. Most airlines allow 22 x 14 x 9 inches for carry-ons. Southwest allows slightly larger bags. If you’re flying budget carriers like Spirit or Frontier, their limits can be tighter and enforcement has always been stricter. A cheap fabric tape measure from Dollar Tree is all you need to save yourself $50+ at the gate.
The 3-1-1 Liquid Rule Still Applies (Mostly)
This one hasn’t changed much, but it still trips people up. Every liquid, gel, or aerosol in your carry-on must be in a container of 3.4 ounces or less. All those containers go into one clear, quart-sized plastic bag. One bag per person.
Here’s the part people get wrong: it’s about the container size, not how much liquid is inside. You can’t bring a half-empty 8-ounce shampoo bottle through security just because there’s only 2 ounces left. The bottle is over 3.4 ounces, so it gets tossed. Buy travel-size containers at Walmart or Target for a couple bucks and decant your stuff before you pack.
There’s a silver lining at some airports: locations with newer CT scanner technology may not require you to pull your liquids bag out of your carry-on. The machines can see through your bag clearly enough that the old routine of pulling everything out isn’t necessary. But don’t count on it — not every airport has the new scanners yet.
If you’re carrying medical liquids like insulin, declare them to the TSA officer before your bag goes through the scanner. They’re exempt from the 3-1-1 rule, but flagging them upfront will save you a long secondary inspection.
TSA’s Warning About Bad Behavior Is Not A Bluff
Beyond IDs and bags, TSA posted a very direct warning in late 2025 reminding travelers that unruly behavior — at the checkpoint or on the plane — can result in massive fines and criminal prosecution. This isn’t vague corporate language. The FAA can fine you up to $43,658 per violation, and a single incident can trigger multiple violations.
In 2021, a Frontier Airlines passenger got hit with a $30,000 fine after assaulting flight attendants. In 2025, an American Airlines passenger who became aggressive midair was literally duct-taped to their seat and now faces federal charges carrying up to 20 years in prison. These are real consequences for real behavior.
The message from TSA is simple: no threats, no verbal abuse, no physical violence. Crowded airports are stressful. Nobody likes delays. But cutting a line or screaming at a gate agent isn’t going to get you on the plane faster. It might get you on the evening news.
Southwest Airlines Is Changing Everything About Seating
This isn’t a TSA change, but it’s happening at the same time and it’s going to confuse a lot of regular Southwest fliers. Starting January 27, 2026, Southwest is moving to assigned seats with numbered boarding groups. The open seating free-for-all that Southwest has been known for since the 1970s is officially over.
If you’ve built your entire flying strategy around boarding early to grab a window seat, you’ll need to adjust. Southwest also now requires plus-size passengers who can’t fit in a single seat to purchase a second seat at full price — a change from their previous policy of offering a refund on the extra seat after the flight.
Your Pre-Flight Checklist For 2026
Print this out and stick it on your fridge before your next trip:
1. Check your driver’s license for the REAL ID star. No star? Get to the DMV or use your passport.
2. Measure your carry-on bag. If it’s over 22 x 14 x 9 inches, check it or risk a gate fee.
3. Put all power banks and spare batteries in your carry-on. Never checked luggage.
4. If you have a smart suitcase, make sure the battery pops out by hand.
5. Pack liquids in 3.4 oz containers inside one clear quart-sized bag.
6. Leave extra time. Between ConfirmID lines and stricter bag checks, everything takes longer right now.
7. Keep your cool. A moment of frustration could cost you thousands.
None of this is hard. It just requires about 20 minutes of preparation before you leave the house. That’s a lot cheaper than $45 at the checkpoint — or $43,000 for losing your temper.
