Carry-On Baggage Basics

Airlines usually allow a cabin bag plus a smaller personal item, like a handbag or laptop bag. Some basic fares only include the personal item. The size and weight limits differ between airlines, and a bag that fits one carrier's frame may be too big for another's.

Size and weight

Check the dimensions on your airline's website, including wheels and handles. Soft bags can be squeezed a bit, hard cases can't. Weight limits for cabin bags range from quite generous to strict, and some airlines weigh them at the gate.

Liquids

Many airports limit liquids in carry-on bags to small containers placed in a clear resealable bag. Some airports with newer scanners have relaxed this, but not all, and rules can differ on the return journey. Medication and baby food are usually exempt in reasonable amounts, declare them at screening.

What to keep in the cabin

• Passport, ID and travel documents.
• Medication and prescriptions.
• Valuables, keys and electronics.
• Phone charger and power bank (power banks are generally not allowed in checked bags).
• A change of clothes in case checked luggage is delayed.

Gate checking

On full flights, airlines sometimes ask passengers to check cabin bags at the gate. If that happens, take out anything valuable, fragile or essential, including batteries. The bag usually goes to the final destination, or is returned at the aircraft door on smaller planes.

Security screening

Have laptops and liquids easy to reach in case you need to remove them. Wear shoes that are easy to take off. Pack so that a security officer could look inside without everything falling out, it happens more than you'd think.