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.
People Also Ask
Your personal item like a purse or small handbag must fit under the seat in front of you. Dimensions should not exceed 18 x 14 x 8 inches (45 x 35 x 20 cm). These don't count as your personal item or carry-on: Diaper bags (1 per child)
Airlines may sometimes ask you to buy a new seat in order to fit your big item. Then, the additional fee will be significant. Even worse, if your personal item is too large or heavy, it is possible that you have to leave it or be denied entry.
Carry-on bags shouldn't be larger than 22 inches long, 14 inches wide and 9 inches high including handles and wheels. Dimensions of personal items should not exceed 18 inches long, 14 inches wide and 8 inches high.
If your carry-on is too big, you will either have to pay penalty fees or check your luggage. Checking your luggage means that your carry-on won't be traveling with you but will instead be sent to the airplane cargo, and you will be able to claim it once the plane lands.
In general, standard domestic carry-on luggage size is 22 x 14 x 9 inches. If you're flying internationally, that may vary a little to 21.5 x 15.5 x 9 inches. Remember, those dimensions include the handle, wheels and anything else that may protrude from your suitcase so don't miss them from your measurements.
What happens if you realize your carry on luggage is too large to fit once you're in the plane? Whenever your bag won't fit, whether due to its size or due to fullness of the bins, the flight attendants take it and tag it and check it for you.
How Strict are Airlines About Personal Items? As long as your bag fits under the seat in front of you, you can probably get away with a bag that's slightly over your airline's size guidelines. However, just as the size restrictions vary by airline, so does their enforcement of those restrictions.
If your carry-on is 1-2 inches over the size limit, don't stress about it too much. Most likely, you'll be allowed to pass through without anyone saying anything. But be prepared that if you encounter a strict airline employee, you might have to check it in.
However, every airline has different restrictions for size. In most cases, your backpack should be no more than 18 x 14 x 8 inches. You should confirm with the airline to avoid penalty fees if your personal item is too large.
Standard and TSA PreCheck® ScreeningAs you know, standard screening requires that you remove all items and place them on the X-ray belt for screening. With TSA PreCheck®, you are able to speed through security and don't need to remove your shoes, laptops, liquids, belts and light jackets.
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.
Most airlines allow passengers to bring on both a carry-on and a personal item like a backpack, laptop bag, purse, briefcase, shopping bag, etc. The general rule of thumb is that your personal item is smaller in dimension than your carry-on bag and it can fit underneath the seat in front of you.
Unless your carry-on is extremely large, the airline employees at the gate most likely won't ask to measure it. If they'd ask each passenger to measure their carry-on, the boarding would take too long. This could cause delayed flights, which airlines don't want.
What is considered a personal item bag varies from airline to airline, but a small purse, briefcase and laptop bag are always considered personal items. Backpacks, totes, and crossbody bags are typically considered personal items too. The key to remember is it must be able to fit underneath the seat in front of you.
For most airlines and flights, a carry on duffle bag must be no larger than 22 x 14 x 9 inches or 45L. These dimensions tend to be more common for suitcases and backpacks. Duffles are longest in one dimension with similar measurements in the other two dimensions.
Most 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.
Toothpaste can be included in your carry-on luggage in a container that is 3.4oz (100ml) or smaller and abides by other 3-1-1 rules. You cannot bring a regular or full size tube of toothpaste in your carry-on. Toothpaste, regardless of container size, can be placed inside checked luggage.