10 Dangerous or Prohibited Items You Can’t Take in Your Checked Luggage in Illinois, Wisconsin, and Iowa

Traveling by air requires careful planning and attention to detail, especially when it comes to what you can and cannot pack in your checked luggage.

While the rules may seem straightforward, there are some items that are strictly prohibited due to safety concerns.

Whether you’re flying out of airports in Illinois, Wisconsin, or Iowa, it’s important to know what’s banned from your checked bags to avoid delays or even fines.

Here’s a list of 10 dangerous or prohibited items you cannot pack in your checked luggage in these states.

1. Flammable Liquids and Gels

Flammable substances, including gasoline, lighter fluid, and certain cleaning agents, are strictly prohibited in checked luggage. These items can easily ignite under certain conditions, posing a significant fire risk. Common household items such as rubbing alcohol and nail polish remover fall into this category as well.

Why it’s banned: The risk of fire or explosion is a primary safety concern for airlines and airports.

2. Explosives

Any form of explosive material, including fireworks, gunpowder, or dynamite, is banned from all airports. These items are considered highly dangerous and can be lethal if triggered in the cargo hold of an aircraft.

Why it’s banned: Explosives can cause catastrophic damage to an aircraft and endanger lives.

3. Compressed Gas Canisters

Compressed gases such as those found in aerosol cans, oxygen canisters, or camping fuel canisters are not allowed in checked bags. The pressure inside the canisters increases with altitude and can lead to rupture or explosion.

Why it’s banned: Pressure changes in the cargo hold can cause these canisters to rupture or even explode, risking severe injury or damage.

4. Lithium Batteries

Lithium batteries, especially those that are loose or not contained within the device they power, are prohibited in checked luggage. These batteries, commonly found in electronics like laptops, phones, and cameras, can overheat and catch fire if damaged or improperly handled.

Why it’s banned: Lithium batteries can be a serious fire hazard if they short-circuit or malfunction at high altitudes.

5. Firearms and Ammunition

While firearms and ammunition are permitted in checked luggage under specific conditions (such as being unloaded and placed in a locked case), many restrictions apply. However, ammunition and certain gun parts, such as magazines, may still be prohibited in checked luggage in some situations.

Why it’s banned: Firearms and ammunition can pose a security risk, especially when not stored correctly. TSA regulations require these items to be packed safely to prevent accidents.

6. Sharp Objects

While most knives and scissors are prohibited in carry-on luggage, certain sharp objects like large knives, ice axes, or razor blades can also be restricted in checked bags if deemed dangerous. These items are typically allowed, but travelers should be cautious about the size and type of blade they pack.

Why it’s banned: Sharp objects, if improperly packed or handled, can cause injury to airport staff and other passengers.

7. Toxic Chemicals

Hazardous chemicals such as bleach, strong acids, pesticides, and certain cleaning supplies are not allowed in checked luggage. These chemicals are dangerous not only to those handling the bags but can also cause harmful reactions in confined spaces like airplane cargo holds.

Why it’s banned: Toxic chemicals can cause harm to both humans and the environment and can pose a significant danger if leaked or mishandled.

8. Corrosive Materials

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Items that can corrode or damage surfaces, such as strong acids or drain cleaners, are prohibited in checked luggage. These substances can cause severe damage to luggage and the aircraft itself if they spill or leak during transit.

Why it’s banned: Corrosive materials can cause irreparable damage to luggage and airline cargo, not to mention present safety risks if spilled.

9. Alcohol Over 70% ABV

High-proof alcohol (greater than 70% ABV or 140 proof) is not allowed in checked luggage. While some alcohol can be packed in checked bags, only small amounts (usually up to 5 liters per person) of alcohol with a lower ABV are permitted.

Why it’s banned: High-proof alcohol is highly flammable and poses a serious fire risk in confined spaces like an airplane’s cargo hold.

10. Perishable Food Items

Perishable items such as raw meats, certain dairy products, and fruits are not allowed in checked luggage unless they are properly packaged and meet specific airline regulations. These items can spoil and cause odor or contamination in the cargo hold.

Why it’s banned: The lack of refrigeration and the possibility of spoilage make perishable food items a hygiene and safety concern.

Final Thoughts

When flying from airports in Illinois, Wisconsin, and Iowa—or anywhere else—it’s essential to follow all TSA regulations regarding what you can pack in your checked luggage.

These restrictions are in place to ensure the safety of passengers, crew, and airport staff. Always double-check the current rules and regulations with the TSA or your airline before you pack, and when in doubt, leave any questionable items at home to avoid unnecessary complications.

By staying informed and adhering to these safety guidelines, you can ensure a smooth and secure travel experience