Here's your cheat sheet for carry-on size limits. Hotels? Confirmed. Airport transportation? Secured. Flights? Checked into.

On domestic flights within the United States, a carry-on bag that's smaller than 22 x 14 x 9 inches (45 linear inches), including handles and wheels, will meet the size restrictions of all major ...

United Airlines offers a budget-friendly option ... Basic economy ticket holders who arrive at security with a standard carry-on size bag will be charged a fee starting at $35.

Similar to checked bag size restrictions, carry-on luggage comes with its own set of rules, too. These restrictions include the dimensions of your carry-on bag and personal item, and in some cases ...