Carry-on Items
The FAA has limited passengers flying within the United States to one piece of carry-on luggage and one personal item. Personal items may include: handbags, briefcases, laptops, daypacks and small backpacks. In addition to one carry-on and one personal item, passengers may bring on board a coat, reading material, small bag of food and devices such as wheelchairs and walkers.
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 22"x 14"x 9". Most airlines have a carry-on weight limit of 40 pounds.
International airlines may have different restrictions for carry-on luggage. Again, it is always best to check with your airline first to get their exact requirements.
Airlines enforce all size and weight limits much more strictly now than in the past. Bags are weighed at check-in and many airlines have placed bag sizers at their gates. If your carry-on bags are too big, you will have to check them. This might cause them to be classified as "extra bags" which usually carries an extra charge.
Be sure to check your airline's website prior to travel.
Measurements must include handles and wheels.
To calculate linear dimensions add the length, width, and height together.
