Can You Bring Snacks on a Plane?

Yes — solid food is generally allowed through airport security with no restrictions. The complications arise with liquid or paste foods (subject to the 100 ml rule) and with customs at your destination (where fresh food, meat, and dairy can be confiscated or result in fines). The security checkpoint and the customs hall have different rules.

Security: What Passes and What Follows the Liquid Rule

Airport security evaluates food by whether it is solid or liquid. Solid food passes through without restriction. Liquid, gel, paste, and cream food must follow the 100 ml rule.

Food type	Security classification	100 ml rule
Sandwiches, wraps	Solid	No
Fruit (whole or cut)	Solid	No
Nuts, dried fruit	Solid	No
Crisps, crackers, cereal bars	Solid	No
Chocolate	Solid	No
Hard cheese	Solid	No
Soft cheese (cream cheese, brie)	Semi-liquid paste	Yes
Yogurt	Liquid	Yes
Hummus and dips	Liquid / paste	Yes
Peanut butter	Paste	Yes
Jam, honey	Liquid	Yes
Soup or smoothie	Liquid	Yes
Baby food pouches	Exempt	No (infant exemption)
Breast milk / formula	Exempt	No (infant exemption)

The Peanut Butter Edge Case

Peanut butter is the most-debated item on the list. TSA officially classifies it as a paste or liquid, meaning it must follow the 100 ml rule. A standard jar of peanut butter (typically 300–500 g) is too large and will be confiscated.

A 100 ml or smaller jar — or a single-serve packet — is fine in your clear liquids bag. The TSA has confirmed this classification explicitly on its social media accounts when travelers challenged it.

What to Pack for the Flight

Anything you would put in a packed lunch is appropriate for carry-on. Good options for long flights:

• Cereal bars, granola bars, protein bars
• Nuts (mixed, almonds, cashews — sealed or resealable)
• Dried mango, raisins, apricots
• Whole fruit (apple, banana, orange)
• Crackers and solid crackers with dry toppings
• Chocolate, sweets, chewing gum
• Pre-made sandwiches or wraps (no liquid condiments that might leak)

Avoid anything with liquid dipping sauces or syrupy packaging that could leak under cabin pressure changes.

Customs on Arrival: A Completely Separate Set of Rules

Security rules govern what can pass through the checkpoint. Customs rules govern what can legally enter a country. These are independent systems with different consequences.

Country	Food at customs
USA	Fresh fruit, meat, and dairy from many countries must be declared; CBP fines start at USD 300 for undeclared agricultural items
Australia	All food must be declared on the incoming passenger card; failure can result in fines of AUD 2,664 or more
New Zealand	Very strict biosecurity — all food including processed items may be inspected; declare everything
UK	Food from non-EU countries restricted; no meat, dairy, or fruit from outside Great Britain and Northern Ireland
EU / Schengen	No restrictions on food between member states; imports from outside the EU may be restricted
Canada	Fresh fruit and vegetables from some countries restricted; meat and dairy from some countries banned
Japan	Fresh fruit and vegetables subject to biosecurity inspection; some items must be declared

Practical Strategy by Trip Type

Domestic flights (US, UK, EU): Bring whatever solid food you like. Pack snacks freely, buy airport food, no customs risk on arrival.

International flights within the EU/Schengen: No customs restrictions on food between member states. Bring food as freely as on a domestic flight.

Flights to Australia or New Zealand: Do not bring any fresh fruit, vegetables, meat, or dairy. Eat or discard food before landing. Declare anything you are unsure about — the fine for a single undeclared apple can be significant.

Flights to the US: Fresh fruit, meat, and certain plant products from outside the US must be declared on the CBP declaration form. Packaged food (commercially sealed, labelled) is generally fine without declaration.