Cabin bags – or carry-on bags – are usually limited to around 25 lbs. for passengers flying economy. It’s always worth checking the airline’s specific carry-on weight limit before you fly though, as this can be less on some airlines, and substantially more on others. Most of the time, there is no stated limit, but the airline notes that passengers must be able to manage lifting their own bag into the overhead compartment.

They can be, but more often they are size-checked. We recommend that you ensure your bag is within the weight and size limits that the airline specifies if you want it on board with you. If the staff deem your bag to exceed their carry-on size limit or max weight, they will likely have you check it.

A personal item usually refers to a purse or handbag, a backpack, or electronics bags, such as a camera case or a laptop bag. The rule of thumb is that the “personal” item should be compact enough to be stowed under the seat in front of you.

If your carry-on bag exceeds the airline’s size requirements, the airline will likely have you check it as regular luggage. Occasionally they may charge you extra fees – this will often depend on the airline and your fare class.

This depends on the airline. All airlines have both size and weight restrictions for carry-on luggage. It’s unlikely your carry-on bag will be weighed at the airport, but it does happen. More often you’ll be asked to measure it. If your bag is too big, you’ll likely have to check it. Some airlines may charge fees too.

Most airlines allow you to bring a carry-on bag and a personal item that fits under the seat in front. Your personal item can include a backpack. If one fits under the seat in front, you can bring two backpacks on a plane.