Understanding Linear Dimensions for Checked Luggage: A Guide for the Frequent Flyer

Packing for a journey should be enjoyable!

However, this can become overwhelming, especially when it comes to checked bags.

It’s essential to know the size and weight regulations set out by airlines and ensure you are within them.

Linear dimensions aren’t that difficult to understand.

In this article, we’re going to explain what they are and how you can use them to make sure your bags match the airline’s regulations. It promises to be an easy and informative read!

So, What Exactly Are Linear Dimensions?

Linear Dimensions

Think of your luggage as a rectangular box and the length, width, and height as the sides. All you need to do is add those three together to get your luggage’s linear dimensions in either inches or centimeters. It’s really quite simple!

To put it simply, linear dimensions are a measure of how long, wide, and tall your luggage is.

Why Are Linear Dimensions Important for Checked Luggage?

When traveling, it’s important to make sure your carry-on luggage fits comfortably in the compartments above or below you.

Each airline has its own set of size restrictions regarding checked bags – and linear dimensions play a big role in this.

Before packing for a flight, it’s important to check the size restrictions of your airline.

For instance, one airline may have a limit of 62 linear inches and another may expect 55 linear inches. To make sure you are covered, measure your suitcases and make sure they meet the standards.

Check out the best 62 linear inches luggage.

Now, let’s talk about the different airlines and their linear dimension requirements.

Major airlines like Delta, American Airlines, and United are more or less the same with their baggage restrictions, however not all airlines are equal in this regard so it’s important to be aware of possible differences.

Don’t forget to double-check the updated baggage policies of your airline before flying. Exceeding the size limit can be costly, so make sure your bag is small enough to avoid an oversize fee.

Be prepared and save yourself from paying extra!

Factors That Can Affect Linear Dimensions

It’s incredible how our luggage can sometimes look bigger or smaller than usual. This can be attributed to several reasons, like overpacking or displacement of the contents, and from the natural wear and tear of regular use.

Don’t forget to measure the size of your bag before every travel adventure – that way you can make sure it’s still compliant with airline regulations.

So, how do you measure linear dimensions? It’s easy! Just grab a tape measure and follow these simple steps:

  1. Stand your luggage on one end, with the wheels facing up.
  2. Measure the length of the luggage from one end to the other.
  3. Measure the width of the luggage at its widest point.
  4. Measure the height of the luggage from the bottom to the top.
  5. Add up the length, width, and height to get the linear dimensions.

And there you have it, you’re now a pro at measuring linear dimensions!


Being aware of the linear dimensions of your bags helps you sail through the airport without any undue stress.

Check with your airline for their luggage requirements, measure your bags, and make sure that they conform to these guidelines – then you can enjoy a relaxed trip!