Under the updated United Airlines baggage policy ... are free to check regardless of size and weight. The size limit for personal items, which include purses, small handbags, backpacks and ...

These rules include the dimensions of your carry-on bag and personal item, and in some scenarios, even the weight. The carry-on size limit for many airlines is 22 x 14 x 9 inches. Most domestic ...

Many airlines don't list the exact ... inches by 13 inches by nine inches. The maximum size for a personal item that fits under the seat on United flights is nine inches by 10 inches by 17 inches.