Can You Bring a Snow Globe on a Plane? The Tennis Ball Rule

Where these numbers come from

Snow globes are a liquid in disguise, so they follow the same 3-1-1 logic as shampoo. TSA allows a snow globe in the carry-on only when it holds under 3.4 oz (100 ml) of liquid, which it compares to the size of a tennis ball, and only when the whole globe, base included, fits inside your one quart-size resealable bag. Anything larger goes into the checked bag.

That second condition is what stops most souvenirs. A globe might hold less than 3.4 oz of water and still not fit, because the heavy base and the figure inside make the whole piece bigger than a bag can seal around. In practice, a globe that fits in the palm of your hand has the best chance, and the test is simple: if you cannot zip the bag with the globe inside, it is a checked-bag item. Remember that your quart bag is also the home of every travel-size toiletry, so a globe can push you out of room for shampoo and toothpaste.

Checked bags have no TSA size rule, but the trip is rough on glass. Wrap the globe in a sweater or in towels, put it in the middle of the suitcase, and surround it with soft clothes so a shift cannot crack it. Buying a globe on the far side of the checkpoint sidesteps the question for your departure airport, but check the rules at any connecting airport before you rely on it.

Worked example: you are at a Denver gift shop with a 4 inch globe. It contains more than 3.4 oz, so it will not pass in a carry-on, and you would need to check it or mail it home. A 2 inch globe that fits in the quart bag with your toothpaste and a 2 oz face cream is fine. Because gel packs also count as liquids, see gel ice packs for a similar rule, and perfume for another gift that the quart bag often decides. The 3-1-1 liquids checker and the Can I bring it? TSA finder give a quick yes or no for other souvenirs.

Sources

• TSA Snow Globes
• TSA What Can I Bring? complete list

Figures checked on September 30, 2026.

This page is general information, not legal, insurance or travel-agent advice. Fees, rules and limits change, so confirm the figures with the official sources listed above before you book or travel.