Dangerous objects not allowed in carry-on or checked baggage
The Transportation Security Administration (TSA) prohibits several potentially dangerous items from being brought on board aircraft in both carry-on and checked baggage. For a complete list of items prohibited from the aircraft cabin and checked baggage, please review the TSA’s list of prohibited items before traveling.
Medically necessary items
Medically necessary items may be exempt from the TSA’s prohibitions. Please consult the TSA website for more information about traveling with disabilities or medical conditions.
Prohibited cabin items
The use of devices that prevent customers from reclining their aircraft seats is prohibited. Engineering test show that these devices can hinder passengers from exiting their seats in an emergency, and can cause damage to tray tables.
Hazardous materials
Articles listed in the Department of Transportation's Hazardous Material Regulations and/or the IATA Dangerous Goods Regulations are restricted. These will only be accepted subject to advance arrangements and compliance with regulations.
For safety reasons, dangerous goods may not be packed in checked or carry-on baggage or taken on board with you. Restricted articles include but are not limited to:
- Lighters
- Lighter fluid
- Acid
- Explosives
- Flammable solids/liquids
- Oxidizing materials
- Corrosive materials
- Compressed gases
- Poisons
- Etiologic agents
- Radioactive materials
- Irritating or incapacitating sprays
- Mercury
- Noxious materials
- Briefcases and attaché cases with installed alarm devices
Call United at 1-800-UNITED-1 for more information about hazardous materials.
Firearms
Federal regulations require that firearms in checked baggage or in their own shipping cases be unloaded and declared. Firearms are not allowed in carry-on bags. Firearms in checked baggage must be packed in a locked hard-sided bag or gun case. TSA locks are not approved for securing firearms. A maximum of 11 lbs. of small arms ammunition is allowed in checked luggage in the original manufacturer's box or securely packed in a fiber, wood or metal box to prevent movement of cartridges.
Dry ice
For information on transporting dry ice, please visit the Special Items page.
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