What You Can and Can’t Bring Through Airport Security in 2026

If you’ve ever second-guessed what’s allowed in your carry-on, you’re not alone. TSA rules can feel confusing, and even frequent flyers sometimes get tripped up at security checkpoints. In 2026, new scanning technologies and updated TSA guidelines make the process a bit faster — but the fundamentals still matter.

Before you pack, be sure to click the image above to see the best TSA-approved travel gear, luggage, and organizers designed specifically to meet 2026 security regulations. This includes 3-1-1-friendly toiletry kits, lockable tech organizers, CT-scanner compatible bags, and more.

This complete guide breaks down exactly what you can and can’t bring through airport security in 2026, plus insider tips for packing smarter and getting through screening with zero stress.

1. The TSA’s 3-1-1 Rule (Still the Foundation in 2026)

The 3-1-1 rule remains unchanged for liquids in carry-ons:

Containers must be 3.4 ounces (100 ml) or less.

All containers must fit in one quart-sized clear plastic bag.

Only one bag per traveler is allowed in your carry-on.

This applies to liquids, gels, aerosols, creams, and pastes — everything from shampoo to peanut butter.

Examples

✅ Allowed: travel-size toothpaste, hand sanitizer (up to 12 oz until further notice), lip balm, lotion, small bottles of perfume
❌ Not allowed: large sunscreen bottles, full-size mouthwash, jars of peanut butter, oversized drinks purchased pre-security

2026 Pro Tip: Many airports now use CT (computed tomography) scanners, which allow travelers to leave liquids and laptops inside their bags — but this only applies at specific lanes. Check signage or ask a TSA officer before assuming.

2. Food Rules: What You Can Bring

Bringing snacks for the flight? TSA allows most solid foods in both carry-on and checked luggage.

Allowed

Sandwiches, wraps, baked goods

Solid snacks (chips, granola bars, trail mix)

Fresh fruit and vegetables

Candy and chocolate

Sealed packaged foods

Restricted or Not Allowed

Soups, stews, sauces, dips

Yogurt, pudding, salsa (large containers)

Frozen foods that have melted

If it can “splash, spill, or spread,” TSA treats it as a liquid.

International Tip: Customs rules vary — countries like Australia and New Zealand are extremely strict. Even a sealed apple can be confiscated.

3. Electronics and Battery Rules

As devices get more powerful, TSA and the FAA continue regulating lithium batteries carefully.

Allowed in Carry-On

Laptops, tablets, phones, cameras

Power banks under 100 watt-hours (Wh)

Spare lithium-ion batteries (properly protected)

Not Allowed in Checked Bags

Power banks

Spare lithium batteries

E-cigarettes and vapes

If your laptop or power bank has a removable battery, it must stay in your carry-on.

Pro Tip: Use a TSA-friendly electronics organizer so officers can see devices without unpacking everything.

4. Medications and Medical Devices

You can absolutely bring prescription medications — even liquids over 3.4 oz.

Allowed

Prescription meds (pills & liquids — no size limit if medically necessary)

Insulin, inhalers, EpiPens

Medical devices like CPAPs or glucose monitors

When in doubt, declare it. No need to place medical liquids in your quart-sized bag.

Tip: Keep medications in original labeled containers for faster screening.

5. Sharp Objects, Tools & Sporting Gear

This is where many travelers get flagged.

Allowed

Nail clippers

Small scissors (under 4 inches)

Disposable razors

Tools under 7 inches

Not Allowed

Knives or multitools with blades

Box cutters

Screwdrivers longer than 7 inches

Baseball bats, golf clubs, ski poles, hockey sticks

Pack these in checked luggage only.

6. Duty-Free Liquids & Airport Purchases

Large liquids purchased after security are allowed — with restrictions.

Allowed If:

Item is in a tamper-evident STEB bag

Receipt is dated within 48 hours

Bag remains sealed until your final destination

If you have a connecting international flight, re-clearing security may cause confiscation.

7. TSA PreCheck and CLEAR: A 2026 Advantage

Travelers enrolled in TSA PreCheck or CLEAR Plus enjoy massive time savings.

Benefits include:

No removal of shoes, belts, or laptops

Dedicated lanes

Faster scanning lanes with CT technology

PreCheck is now available at 230+ airports, and CLEAR continues expanding nationwide.

8. Special Items and Gray Areas

These items cause the most confusion:

Item Allowed? Notes
Hair straighteners ✅ Must be unplugged
Disposable lighters ✅ Max 1 per passenger
E-cigs/vapes ✅ (carry-on only) Banned in checked bags
Snow globes ✅ Must fit 3-1-1 rules
Scissors ✅ Blades under 4 inches
Wrapped gifts ✅ TSA may unwrap
Baby formula/breast milk ✅ Exempt from liquid rules
9. How to Speed Through Security in 2026

Here’s how to breeze through screening:

Pack liquids and electronics accessibly

Use clear zip bags to help TSA see contents

Check TSA’s “What Can I Bring?” tool

Wear slip-on shoes

Empty water bottles before security

New 2026 Hack: Many major airports now offer “checked bags only” express lanes for travelers without carry-ons.

10. If TSA Confiscates Something

You may:

Surrender it voluntarily

Step out to check it (if time allows)

Use airport mail-back kiosks to ship it home

Always stay calm and courteous — attitude matters.

11. Final Takeaway

In 2026, TSA rules are clearer and the technology is better — but the basics still matter:
the 3-1-1 liquids rule, lithium-battery restrictions, and banned items lists remain the backbone of airport screening.

Before traveling, click the image above to browse TSA-compliant travel gear, luggage, toiletry kits, and electronics organizers made for the new 2026 screening systems. Using the right gear can dramatically speed up your security experience.

And when in doubt?
Check the TSA “What Can I Bring?” tool or the MyTSA app before leaving home.