How strict is Southwest on baggage weight?

Each checked bag can weigh 50 pounds or less and be 62 inches in size (length + width + height). What is considered excess baggage? To check more than two bags, each extra bag will result in an additional charge each way as long as it is no bigger than 62 inches (L+W+H) and weighs 50 lbs. or less.



In 2026, Southwest Airlines remains one of the most generous carriers regarding baggage, but they are very strict about the 50-pound (22.7 kg) weight limit. While they famously allow "Two Bags Fly Free," if either of those bags exceeds 50 pounds, you will be hit with an "Overweight Baggage" fee, which in 2026 typically starts at $100 to $125 per bag. The agents at the check-in counter use calibrated digital scales, and while they might give you a "grace" of 0.5 pounds, anything more will require you to either pay the fee or move items into your second bag or carry-on. Southwest is less strict about the size of your checked bags (up to 62 inches in combined dimensions), but they do not compromise on weight for the safety of the ground crew and the balance of the aircraft. To avoid these steep 2026 fees, it is highly recommended to use a handheld digital scale at home. Remember, the 50-lb limit applies to each bag individually; you cannot "average" the weight across two bags if one is 60 lbs and the other is 40 lbs.

People Also Ask

Southwest will accept the first two checked bags for free provided that the bags do not exceed 50 lbs and 62 inches (L+W+H). Overweight items from 51-70 pounds will cost $100. Overweight items 71-100 pounds will cost $125.

MORE DETAILS

The carry-on bag must fit in the overhead bin and should not exceed the dimensions of 10 x 16 x 24 inches (25 x 40 x 61 cm). The personal item should fit under the seat in front of you and can include a purse, briefcase, laptop bag, or a smaller item like a backpack.

MORE DETAILS

You may carry on one bag and one personal item1. The bag should be stowed in the overhead compartment, and your small personal item should be stowed under your seat. free! Weight and size limits apply.

MORE DETAILS

How big can my checked baggage be? Each checked bag can weigh 50 pounds or less and be 62 inches in size (length + width + height).

MORE DETAILS

Usually, many airlines won't check every carry-on but will instead go for ones that look oversized. 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.

MORE DETAILS

Firearms, ammunition, and fireworks are prohibited, as are all knives and safety razors (including pocket knives and Swiss Army knives). Straight razors and replacement blades for straight razors are also not allowed. Most tools also cannot be packed in carry-on luggage, as they have the potential to cause harm.

MORE DETAILS

In general, your personal item should be smaller than your carry-on and under the specific airline's carry-on dimensions, allowing it to fit under the seat in front of you. In most cases, backpacks are considered personal items as long as they fit under the seat in front of you.

MORE DETAILS

Sharp, heavy, and other dangerous items are restricted on all commercial airline flights, including Southwest. Items such as sharp knives, bats, clubs, ski-poles, snow globes and most tools and weapons must be checked rather than packed in a carry-on. Explosives and fuels may not be carried by air at all.

MORE DETAILS

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.

MORE DETAILS

Southwest Is A Safe Airline
They are a favorite among travelers looking for cheap flights without having to compromise on comfort or security. According to the most recent list of the world's safest airlines, Southwest was ranked in the top 15 airlines in the world in 2021, even beating out Delta, American, and United.

MORE DETAILS

For example, if an extra piece of baggage exceeds the weight and size limits, it will be subject to three fees: one for the extra bag, one for exceeding the weight limit and one for going over the size restriction. Fees are charged for each additional bag, each way.

MORE DETAILS

Are cabin bags weighed? They can be, but more often they are size-checked. We recommend that you ensure your bag is within the weight and size limits the airline specifies if you want it on board with you. If the staff deem your bag too big or too heavy, it will be checked.

MORE DETAILS

While this can be confusing, most popular airlines allow you to bring a carry-on and personal item, such as a backpack or purse. In general, your personal item should be smaller than your carry-on and under the specific airline's carry-on dimensions, allowing it to fit under the seat in front of you.

MORE DETAILS

Most airlines will base their size limits on the total size of your bag, not just the weight in pounds like checked bags. Some airlines only give a guidance on “linear inches,” i.e. the sum of the length + width + depth of your bag. A limit of 40 linear inches could also be expressed as 18 x 14 x 8 inches.

MORE DETAILS

Each passenger may carry liquids, gels and aerosols in travel-size containers that are 3.4 ounces or100 milliliters. Each passenger is limited to one quart-size bag of liquids, gels and aerosols.

MORE DETAILS

As long as you keep your liquid or aerosol deodorant in a container that is smaller than 3.4 ounces (100ml) and store it in a quart-sized, zip-top bag, you shouldn't have a problem traveling with it. There are no restrictions for packing solid deodorants in your carry-on luggage.

MORE DETAILS

Certainly, you can pack clothes in your personal items or carry-on bag. But for a better experience, we recommend packing most of your clothes in your carry on and leaving extra space in your personal items.

MORE DETAILS

How strict are the airlines about luggage dimensions? Carryon dimensions are limited to the size of the overhead bin. In those cases dimensions are strict. Anything too big gets gate checked.

MORE DETAILS

Normally, the allowed size for personal items on most airlines varies between:
  1. Length: 16 and 18 inches (40.64 and 45.72 cm)
  2. Width: 14 to 15 inches (35.56 and 38.1 cm)
  3. Depth: 7 to 9 inches (17.78 and 22.86 cm).


MORE DETAILS

Most airlines let you bring a carry-on bag and a personal item. In most cases, your handbag, briefcase, or small backpack must fit beneath the seat in front of you and within the airline's size restrictions. In contrast, a carry-on bag is typically larger and is stored in the overhead compartment.

MORE DETAILS