Maximum size is 9 x 14 x 22 inches (22.9 x 35.6 x 55.9 centimeters) Checked baggage / Hold luggage - Applicable fees per bag increase with number checked. Maximum size is 80 linear inches (203 centimeters) in height + width + length.
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For example, if your bag is 24 inches tall, 20 inches long and 18 inches wide, its total linear length is 62 inches. Note that using modern spinner bags, which include four wheels on the bottom of your suitcase, means you'll have less space within your actual bag.
Small checked suitcases usually are 23-24 inches on the longest size, medium ones 25-27 inches, and large ones in 28-32 inches. Quite often, suitcases above 30 inches will actually be oversized, because they're over 62 linear inches with wheels and handles included.
Linear Inches = length + width + heightIf your suitcase has a height of 22 inches and a width of 14 or more it will meet the airline's requirements for checked bags (62 linear inches). You might want to take this into consideration when packing because you'll need room in case they give you an unexpected upgrade!
Most airlines seem to have a 62 linear limit (L x W x D) on checked luggage before incurring additional fees. Suitcases seem to be sold in 20, 24, and 28 sizes. The 28 bag comes the closest to the 62 limit but almost every 28 bag I've looked at had linear measurements of between 64-65.
To calculate the size of your carry-on bag, measure the length, height, and depth (or width) of your bag.You can add the three numbers together to find the total linear inches. For example, a bag with a length of 20 inches, width of 12 inches, and depth of 6 inches would be 20+12+6 = 38 linear inches.
You should check with your airline first, but most domestic airlines permit a carry-on piece of luggage that is 45 linear (total) inches. A common sized bag for carry-on luggage is 22x 14x 9. Most airlines have a carry-on weight limit of 40 pounds.
If your checked bag is over 62 linear inches (157 cm), it will be marked as oversized. This is a rule set by airline regulators to protect baggage handlers from any potential injuries. You'll need to pay a hefty fee for oversized baggage, which usually ranges between 75-200$.
A lot of manufacturers advertise their 28-32 inch suitcases as checked luggage. However, technically, that's false advertising. The truth is that a large portion of 28, 29, 30, 31, and 32-inch suitcases are over the size limits for checked bags, so they can't be used as checked bags.
Large suitcases are 70 to 79 cm or 27 to 31 inches in height. They have a capacity of 55 L up to 140 L. Just imagine how many clothes and shoes you could fit in these suitcases!
What does this mean? The linear dimensions, or total linear length, of your luggage are the sum total of the length, width, and height of your suitcase. This number may not exceed the Maximum Linear Dimensions allowed by your airline, typically 62 inches (158cm) for most airlines.
Small vs Medium vs Large Checked LuggageSmall checked suitcases usually are 23-24 inches on the longest size, medium ones 25-27 inches, and large ones in 28-32 inches. Quite often, suitcases above 30 inches will actually be oversized, because they're over 62 linear inches with wheels and handles included.
On domestic flights within the United States, a carry-on bag that's smaller than 22 x 14 x 9 inches (45 linear inches), including handles and wheels will meet the size restrictions of all major airlines, such as United Airlines and Alaska Airlines.
50 pounds is the usual weight limit. The largest checked international luggage size allowed is 62 linear (total) inches. Typically, a standard checked luggage size wavers around 27 x 21 x 14 inches. The universally accepted carry-on luggage size for a domestic flights (within the U.S.) is 22 x 14 x 9.
Measure the length, height, and depth of your bag, including handles and wheels. Add those three measurements together. The total is your linear measurement, in either centimeters or inches. Measure from the wheels to the top of the handle for height.
Most domestic airlines anyway have a linear size limit for checked baggage of 62 inches overall, meaning length+width+height. So one length of 32 inches won't put you over the limit if the width and depth keep you under 62 inches total.
Most domestic airlines publish checked baggage size limits as a single dimension: 62 linear inches total. International airlines vary slightly, but the 62-inch rule is the most common standard worldwide. Bags larger than 62 linear inches can still fly, but they may be subject to additional fees.
Therefore, when it comes to a 28-inch suitcase, if you don't exceed the maximum weight limit for checked luggage then you should be able to check it in at most airports. However, if your bag exceeds the size or weight limits then you may be subject to additional charges from the airline.