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.
Checked LuggageMost airlines will allow you to check one bag and have one carry-on bag. There is normally a maximum weight limit of 50 pounds per checked bag as well as a size restriction. The most common maximum size bag allowed is 62 linear (total) inches. A common size bag for checking through is: 27 x 21 x 14.
A medium checked suitcase (25-27 inches) is more than enough for most people. Usually, medium checked suitcases are 58-61 linear inches in size, which is just below the 62 linear inch size limit, so when you're looking for a checked suitcase, get one in this size.
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.
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 is a measurement used by airlines to figure out the size of checked luggage. It's calculated by adding together the outside length, width, and height of a suitcase or bag. For example, if your bag measures 24 inches long, 18 inches wide, and 20 inches high, its linear inches would be 62 (24+18+20=62).
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.
It measures 56 x 45 x 25cm (including handle and wheels) which is the maximum approved size for easyJet (Large Cabin), British Airways Jet2 amongst many more.
56x45x25cm is the IATA standard and is the size used by most airlines throughout the world. So it's the nearest thing to a standard size in the airline industry.
Most domestic airlines follow a single rule of 158cm regarding checked baggage size limits. International airlines may differ slightly. Bags larger than 158cm can still fly but may be subjected to additional fees. Generally, the weight of the packed bag is a more significant concern than the size.
Most bags that fit under 20kg suitcase category are large or XXL suitcases that are suitable for checked in travel on airlines. In general a 20kg suitcase has the following dimensions: Length: 69-81 cm (27-32 inches)Width: 43-51 cm (17-20 inches )
Most airlines require that your bag be 62 linear inches or less. Therefore, your bag's length, width and height cannot exceed 62 inches. This measurement includes the wheels and the handle of your luggage.
If your luggage does not fit in the sizer, you might have to pay a checked bag fee along with the gate checking fee and have your bag transferred to the airplane's cargo. Checked luggage is usually measured with a tape measure, to make sure that it's below 62 linear inches (height + width + depth).
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.
If the baggage size, be it check in bag or cabin bag, is higher than usual, you may need to pay additional sum if required. If the baggage is too big or too heavy, the airline may send it separately by cargo plane. You may need to pay additional sum if required.