Blankets. Business and first-class flights offer comfort items like blankets during the flight. You must leave them on board when you're leaving the plane as they can be reused.

No, you generally cannot take the blanket from your Delta flight, as they are considered the property of the airline and are intended to be reused for future passengers. After each flight, used blankets are collected by the cleaning crew, laundered at high temperatures, and repackaged for the next set of travelers. Taking the blanket is technically considered theft of airline property, and while flight attendants may not always stop you, it adds significant operational costs to the airline and is environmentally wasteful. In premium cabins like Delta One, the blankets are often high-end products from brands like Missoni, making them even more strictly monitored. If you are cold at your destination or want a souvenir, Delta and many other airlines often sell branded travel blankets and amenity kits on their official online "SkyMiles" or merchandise stores. However, some items in the "amenity kits" (like eye masks, earplugs, and socks) are yours to keep. If you are unsure, it is always best to ask a flight attendant, but as a rule of thumb: if it’s a permanent piece of bedding, it stays on the plane.