Often the single heaviest item is a laptop. This should be carried as a personal item when checking in or boarding a plane.

In this story: What size can a carry-on bag be? It depends on which airline you're flying ... Hawaiian Airlines, JetBlue, and ...

Carry-on bags are included in the price of airfare for almost all United flights. Your carry-on bag will need to fit inside the overhead bins, with maximum dimensions of 9 inches x 14 inches x 22 ...

"Clearly, there are some customers who chose them because of that, and now those customers are up for grabs," said Delta's CEO.