Pillows are permitted in both carry-on bags and checked bags, according to the TSA's website. But while you'll have no problem bringing a full-size pillow through security, it's up to the airline to decide if it counts as your personal item.
Can I buy a pillow at the airport?
A travel pillow available at airportsIt's available at many airport stores, though.
Can airlines charge you for a pillow?
What is the purpose of the airplane pillow?
Grip/traction: Your head will likely move around a bit while sleeping on a plane, especially if there's turbulence. So any kind of grip or traction around the bottom of the pillow will help it stay in place and keep you snoozing.
What do airlines do with used pillows?
Others still provide them on a limited basis, as upscale amenities for passengers in premium seats. And several airlines that do provide pillows and blankets also reuse them. But reps from those airlines told us that the items are laundered and repackaged between uses to eliminate any health concerns.
Does a blanket count as a personal item?
Blankets are considered a personal item by most airlines and will be treated much in the same way as a jacket would. It is best if your blanket is compact and can fit into your carry on bag for storage if not in use. Plus, if your blanket can fit in your carry on bag it will not count as a personal item.