Carry-on baggage 2026 - size, weight and what you can bring
Complete carry-on guide: personal item vs cabin bag, airline limits, liquids, batteries and airport security rules.
Why you can use this page to make a decision
This page combines a direct answer with airport, airline and primary-source rules. Safety answers are not influenced by partner content or advertising.
What determines your baggage allowance?
Cabin bag dimensions and weight mainly come from the airline, not the airport. The airport controls security rules, which affect liquids, sharp items and how electronics are screened.
Personal item vs cabin bag
A small under-seat bag and a larger overhead cabin bag can have separate limits. On low-cost fares, the basic ticket often includes only the personal item.
The most common problems
Oversized bags, power banks in checked baggage, oversized liquid containers and sharp items cause many avoidable problems. Check those four things before leaving for the airport.
Check in PreflightMate
Always check the official airport or airline source before travel. Rules can change and may be more restrictive.
What can I bring on a plane?
What to verify before closing your bag
Baggage allowance is a combination of fare, bag type, dimensions and weight - the airline name alone is not enough.
- Confirm the fare shown in your booking.
- Measure wheels, handles and protruding parts as part of the bag.
- Keep airline baggage rules separate from airport security rules.
Who prepares the answers
Content is prepared by the PreflightMate Research Desk from structured data and official sources. We do not present ourselves as an aviation authority or airline.
Automation helps format, compare and translate data. A rule marked verified must be linked to an official source; conflicts and exceptions remain visible.
A specific airport, airline, route, destination-country rule or a security officer may apply a more restrictive requirement.
Official source
European Commission - Aviation Security ↗
EASA - Dangerous goods when flying ↗
ICAO - Power bank restrictions 2026 ↗