No, you cannot bring a full or partially full can of soda through TSA security. Any liquid or gel in a container larger than 3.4 ounces must be packed in checked baggage, not carried through the checkpoint in your carry-on.

A sealed can of soda is treated as a liquid by TSA rules, even though it is carbonated. The 3-1-1 liquids rule applies: containers must be 3.4 ounces or smaller, fit in a single quart-sized clear plastic bag, and be placed in one bag per passenger. A standard 12-ounce soda can exceeds that limit by a large margin.

You have two options: check the soda in your luggage, or buy it after you pass through security.

Key Takeaways

  • Any soda can larger than 3.4 ounces cannot go through the security checkpoint in your carry-on bag.
  • You can pack soda cans in checked luggage with no size limit, as long as they are sealed.
  • Empty containers are allowed through security; you can fill them at a water fountain or buy a drink after the checkpoint.
  • TSA treats all carbonated beverages the same way as still drinks—the carbonation does not change the rule.

Why Soda Cans Are Prohibited in Carry-On Bags

TSA classifies soda as a liquid because it is a beverage in liquid form. The agency does not distinguish between still water, juice, soda, or any other drink. The 3-1-1 rule exists for security screening purposes and applies uniformly to all liquids and gels, regardless of what they are.

A standard 12-ounce soda can is roughly 355 milliliters, which is about 12 fluid ounces. The TSA limit of 3.4 ounces (100 milliliters) means even a small travel-size bottle of soda would exceed the threshold. There is no exception for sealed, unopened cans.

Packing Soda in Checked Baggage

If you want to bring soda on your flight, the simplest option is to pack it in your checked luggage. Sealed cans can go in checked bags without any size or quantity restrictions, as long as they fit inside your suitcase and you stay within your airline's weight limits.

Pack cans toward the center of your bag, surrounded by soft items like clothing, to reduce the risk of damage during handling. If a can leaks, it will be contained in your checked bag rather than affecting your carry-on items. Some travelers wrap cans individually in plastic bags as extra protection.

Buying Soda After Security

The most convenient option for many travelers is to buy soda after you pass through the security checkpoint. Most airports have restaurants, cafes, and shops beyond security where you can purchase beverages. Prices are typically higher than retail stores, but you avoid packing altogether.

If you want to bring your own drink, bring an empty reusable water bottle or cup through security, then fill it at a water fountain or ask a cafe to fill it with tap water. Some airports have water refill stations specifically for this purpose.

Empty Containers and Refillable Bottles

An empty soda can or empty water bottle is allowed through security. Once you are past the checkpoint, you can fill it at a water fountain, water bottle refill station, or by asking a restaurant or cafe. This approach saves money and lets you bring your own container.

If you are concerned about finding water on the other side of security, bring the empty container and fill it before boarding. Most airports have at least one water fountain or refill station in the terminal area.

International Flights and Other Airports

The 3-1-1 liquids rule applies to all TSA-regulated airports in the United States. If you are flying internationally, the departure airport's security rules explore to your carry-on. Many countries follow similar rules, but some are stricter. Check the security requirements of your departure airport before you pack.

When you arrive at your destination, local security rules do not explore to items already in your checked baggage, so soda cans will be fine. If you are connecting through another U.S. airport, the same TSA rules explore at each checkpoint.

What Happens If You Try to Bring Soda Through Security

If you arrive at the security checkpoint with a soda can in your carry-on, TSA officers will ask you to either check the bag, remove the can and discard it, or leave it behind. You will not be allowed to proceed with the soda in your carry-on. This happens frequently, so TSA staff are accustomed to it and the process is straightforward.

To avoid this delay, check your carry-on before you arrive at the airport. If you have any doubt about whether an item is allowed, the TSA website has a "What Can I Bring?" tool where you can search specific items.

Frequently Asked Questions

Can I bring a sealed, unopened soda can through security?

No. TSA does not make exceptions for sealed or unopened beverages. All liquids, including sealed soda cans, must follow the 3-1-1 rule and cannot exceed 3.4 ounces in carry-on baggage.

What if I buy soda at the airport before security and try to take it through?

You will have to discard it or check it. Beverages purchased in the terminal before security are treated the same as any other liquid and cannot pass through the checkpoint in your carry-on.

Can I bring diet soda or other types of soda?

No. TSA treats all sodas the same way—regular, diet, caffeine-free, and any other variety are all classified as liquids and subject to the 3-1-1 rule.

Are energy drinks and sports drinks also prohibited?

Yes. Any beverage in liquid form—energy drinks, sports drinks, juice, tea, coffee, or any other drink—follows the same 3-1-1 liquids rule as soda.

Can I bring an empty soda can and fill it after security?

Yes. An empty can is allowed through security. You can fill it at a water fountain, refill station, or ask a cafe to fill it with water or another beverage once you are past the checkpoint.