Per TSA regulations, carryon items are limited to one bag plus one small, personal item. 1  Personal-type items include purses, briefcases, cameras, food containers, or laptops (case included). Pet carriers are considered either a personal item or a carryon item. 2  Southwest Airlines limits carryon bag dimensions to 10 x 16 x 24 inches.
https://www.southwest.com/html/customer-service/baggage/carryon-bags-pol.html
1 Measure your bag. The size of your luggage is measured H x L x W. To assist you in this process, we have labeled each luggage item on our site with their corresponding dimensions. If you are measuring your luggage on your home, make sure to include wheels and handles in your total dimensions.
https://www.ebags.com/BuyingGuides/luggage-and-travel/carry-on-luggage-size
Restrictions on liquids: 3.4 ounce or smaller of containers for liquids and gels (100 ml) 1 quart-size clear plastic zip-top bag holding the liquid contents (approx. 950 ml) 1 bag per traveler shown openly in the security bin.
https://en.wikipedia.org/wiki/Hand_luggage
Carry On Luggage Size Restrictions 2017. The table above was created using up-to-date 2017 data from each respective airline. However, we highly recommend that you double check with your airline’s website just in case anything does change.
http://www.theluggagelist.com/carry-on-luggage-size-chart/
Each passenger is permitted to bring one quart-sized bag of liquids aersols, gels, creams and pastes in your carryon bag and through the TSA security checkpoint. These are limited to 3.4 ounces (100 milliliters) or less per item.
https://www.southwest.com/html/customer-service/baggage/carryon-bags-pol.html
Carry-On Luggage Regulations. Our chart lists many common airlines and their carry-on size and weight restrictions. For a more complete look at your airline’s luggage restrictions by class, active duty passenger discounts, pet regulations and international travel, please refer to our active list of airline charts below.
https://www.ebags.com/BuyingGuides/luggage-and-travel/carry-on-luggage-size
Carryon Baggage. Per TSA regulations, carryon items are limited to one bag plus one small, personal item. Personal-type items include purses, briefcases, cameras, food containers, or laptops (case included). Pet carriers are considered either a personal item or a carryon item.
https://www.southwest.com/html/customer-service/baggage/carryon-bags-pol.html
Carry-on bag. The maximum dimensions for a carry-on bag are 9 inches x 14 inches x 22 inches (22 cm x 35 cm x 56 cm), including handles and wheels. Personal item.
https://www.united.com/CMS/en-US/travel/Pages/BaggageCarry-On.aspx
Here are two things to consider: A 20” international carry on will fit in any overhead compartment. You should have similar luck with a 21-22”, but some international airlines may have smaller compartments. So especially if you’re a frequent overseas traveler, go with a 20” bag if size is a concern.
http://www.theluggagelist.com/carry-on-luggage-size-chart/
Under FAA regulations, anything that is larger than your airline’s carry-on bag weight/height restrictions must be checked. Each piece of checked luggage must also meet your airline’s checked luggage policies. Anything larger than the airline’s standard regulations may require additional fees.
https://www.ebags.com/BuyingGuides/luggage-and-travel/carry-on-luggage-size
what is the maximum size luggage for carry on
The maximum size of luggage for carry on is 9 inches multiply by 14 inches multiply by 22 inches, including handles and wheels. The maximum size luggage for carry on 9 inches x 14 inches x 22 inches including handles and wheels.