Not yours to keep, not even in business class (unlike pyjamas, which are gifted). Airline blankets are gathered at the end of the flight, washed at industrial laundry centres and then redistributed. Some carriers, especially those based in the US, will let you buy blankets from the in-flight magazine should you desire.

No, you are generally not allowed to keep airline-provided blankets, as they are considered the property of the airline and are meant to be laundered and reused for future flights. On most major carriers like Delta, United, or British Airways, removing the blanket from the aircraft can technically be considered theft, though it is rarely prosecuted unless done in bulk. Some airlines may sell "branded" blankets as part of an in-flight comfort kit, which you are then free to keep. In 2026, many frequent travelers prefer to bring their own travel blanket, as airline blankets are increasingly being removed from shorter domestic flights for hygiene and cost-cutting reasons. If you are unsure, you can ask a flight attendant; however, the plastic-wrapped blankets found on your seat at boarding are almost always intended to remain on the plane when you deplane.