Carry-on luggage size restrictions vary by airline-here's how to tell if your suitcase, backpack, or duffle bag is small enough to bring as a carry-on.

The easiest way to avoid a hassle at check-in is to double-check the airline carry-on size limits before you start packing ...

That especially applies to handling carry-on luggage — from figuring out size and weight requirements to the dread over your bag potentially being gate-checked at the last minute because it ...