What Is the Size Limit for Carry-On Luggage?

The size limit for carry-on luggage varies by airline, but most have a limit of 45 total linear inches. The size limit is based on the bag's length, width and depth or height.

Length

The standard accepted length for a piece of carry-on luggage is 22 inches. Some airlines will allow bags as large as 24 inches.

Width

The maximum width for a piece of carry-on luggage is 14 inches on most airlines. Some airlines will allow luggage pieces as wide as 16 inches.

Depth

The standard depth or height for a piece of carry-on luggage is 9 inches. Some airlines will allow bags as large as 10 or 12 inches.

Considerations

Some airlines allow passengers to carry on bags as large as 55 inches. Airlines with a hard limit of 45 inches may reject carry-on bags that are less than 45 inches but are of an unusual shape.

References

• Federal Aviation Administration: Carry-On Baggage Tips
• The Travel Insider: Airline Carry On Luggage Allowances