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Carry-On and Checked Baggage Size Guide

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Carry-On (Cabin) Baggage

Rules vary by airline, but a small case with combined dimensions (length + width + height) around 115cm (roughly 55x40x20cm) is a common carry-on benchmark. Most airlines also cap the weight separately.

Checked Baggage

Many international airlines cite a combined-dimension limit of 158cm as a standard reference, though allowed size, piece count, and weight can all vary by airline, route, and fare class.

Size Limits and Weight Limits Are Separate

A bag can meet the size limit and still cost extra if it exceeds the weight limit -- commonly cited figures are around 23kg for checked bags and 7-10kg for carry-ons -- so check both.

Domestic and International Routes Can Differ

Even with the same airline, baggage allowances sometimes differ between domestic and international legs, so it's safer to check the rules for each segment of your itinerary separately.

Excess Baggage Fees

Going over the size, weight, or piece-count limit triggers an extra fee under the airline's own fee schedule. Rates differ by airline and change often, so check the current schedule on the airline's website before you fly.

Measure Your Own Case Before You Buy

A manufacturer's stated case dimensions may or may not include the wheels and handles, so measurement conventions vary between brands. To be sure a case meets an airline's limit, measuring the combined dimensions yourself is the most reliable approach.

The Most Important Rule: Every Airline Is Different

The figures in this guide are common reference points used by many airlines, not a universal standard. Low-cost carriers and full-service carriers often set different limits, and even within the same airline, allowed size, weight, and piece count can change with your fare class or membership tier.

Always Confirm Before You Travel

The most accurate source is the baggage policy listed on your airline's website or booking confirmation. If your trip includes a connection, each operating airline's rules may differ -- packing to the strictest limit among them is the safest approach.

Frequently Asked Questions

Does the carry-on size limit include the wheels and handles?

It depends on the airline, but most measure the full outer dimensions including wheels and handles. Since a product's advertised size sometimes reflects only the body of the case, it's worth checking how the manufacturer measured it before buying.

Can I bring a personal item in addition to my carry-on?

Many airlines allow one small personal item (a backpack or laptop bag) alongside your carry-on, but low-cost carriers often restrict this or charge for it -- check the rules for your specific airline.