The maximum size of carry on luggage that is shown on the airline instructions is the sum of width, heights and lengths. For regular travelers who need to fly with various airlines, the safest and universal carry on luggage size is 22". One side note is, always look for carry on luggage smaller than 22".

Top 3 best rated 19in. airline carry on luggage picks

1. Titan 360° FOUR Flash 19in. International Spinner Carry-On

The Dimensions of this spinner is 19" x 14" x 9", that is, 42 linear inches. The size is perfect for light packers. And the holding capacity is 2275 cubic inches. This means you can put 2 days' necessity into it without having your luggage checked.

2. JanSport Super Break Collection 19in. Upright

The Dimensions of this upright carry on is 19" x 13" x 9", 41 linear inches. Besides the size, the pink dot design makes this luggage popular among youngsters. The Capacity is 2112 cubic inches.

3. Heys USA Lightweight Luggage and Business Cases XCase NS 19in. Wheeled Carry On

The dimension of this wheeled carry on is 19" x 13" x 9" (41 linear inches). The holding capacity is 2112 cubic inches. What makes this product popular is durability and hardside shell.

Top 3 best rated 22in. airline carry on luggage picks

1. Brics Sintesis 22in. Lighweight Trolley

The dimension is 22" x 17" x 9" (48 linear inches). It can hold 3198 cubic inches. The highlight of Trolley is the lightweight design, weighting 6.1 lbs. The compact finish is also the reason why it is rated high.

2. Andiamo Bravo 22in. Ultra-Lite Pullman

The dimension is 22" x 14" x 10" (46 linear inches). This one is relative small in holding capacity, as 2926 cubic inches. But this all featured pulling luggage has many innovative designs, such as Speed Thru pocket facilitates, and SmartLink system to attach a second bag.

3. Titan X2 2-Wheel Matte 22in. Trolley

This product from Titan is known for its holding capacity of 4369 cubic inches in 22in. model. Customers give high rates to this product because of the durability and refreshing look.

Visit http://www.luggageguides.com/categories/airline-luggage-and-carry-on-luggage-buying-guides/ to learn more buying tips, or simply check out the travel gear from Luggageguides, which offers the best products and how-tos to assure you a pleasant journey. Joshua M. Smith, the author of this article, is a dab hand in budget travels and he has a lot of travel experience to share.