Can You Bring Laundry Detergent on a Plane?

Direct Answer (2026 Official Rules)

Cabin: ✓ YES Hold: ✓ YES

Yes — you can bring laundry detergent on a plane in your carry-on luggage. Powder/pellets: allowed; >12 oz separate bin.

Verified against published 2026 TSA (United States) & CATSA (Canada) security screening databases.

On this page · 9 sections

⚖️ Why This Rule Exists: Cabin Security, Blade Restrictions & Sterile Area Integrity

Non-bladed tools under 7 inches (18 cm), blunt items, and general travel gear that do not pose a cutting, impact, or hazardous materials risk are permitted in carry-on luggage.

Decision Threshold: Permitted in carry-on if non-sharp or under legal length thresholds.

Rules by security authority

United States — TSA

Carry-on

Yes

Yes — powder/pellet detergent is allowed; containers over 12 oz of powder go in a separate X-ray bin.

Checked bag

Yes

Yes — sheets and powder travel checked without limits; liquid detergent follows the liquid rule.

Rule conditions: Powder/pellets: allowed; >12 oz separate binLiquid detergent: 3.4 oz containers, liquids bagDetergent sheets: dry — completely unrestrictedDryer sheets: fine either bag

Flying internationally? Security follows the country you depart from — the authority above applies at your departure airport. Customs at arrival is separate.

🔍 Security Checkpoint & X-Ray Screening Advice

Place large metal tools in the screening bin alongside electronics if requested by screening staff.

Learn more about scanner differences and traveler rights in our Airport Security Screening Guide →

⚠️ Common Traveler Mistake to Avoid

The Mistake: Assuming scissors or tools of any size are allowed without checking blade length from the pivot point.

How to Avoid It: Measure blade length: must be under 4 inches (10 cm in the US) or under 6 cm from pivot (in Canada).

How to Pack Laundry Detergent for a Flight

Sink-laundry travelers: detergent sheets are the whole answer — paper-dry, unlimited, unspillable, and TSA-invisible. Pods are gels, liquid is liquid; both survive in 100 ml travel bottles, but the sheet version never confiscated anything and never leaked in a bag.

Laundry Detergent on a plane — FAQs

Can you bring Laundry Detergent in a carry-on?

Yes — powder/pellet detergent is allowed; containers over 12 oz of powder go in a separate X-ray bin.

Can you pack Laundry Detergent in checked luggage?

Yes — sheets and powder travel checked without limits; liquid detergent follows the liquid rule.

Why are there rules for laundry detergent on a plane?

Non-bladed tools under 7 inches (18 cm), blunt items, and general travel gear that do not pose a cutting, impact, or hazardous materials risk are permitted in carry-on luggage.

Last verified: July 29, 2026

Verified against official sources. Rules change — for high-stakes items, confirm with your airline and the screening authority. Our verification method →