Before flying with your feline, consider how cats go to the bathroom on a plane. Ideally, book a direct flight when possible so you have as little travel time as possible. However, layovers can also provide a bathroom break if your cat needs it. Some airports have pet relief areas for this.
Regardless of your flight itinerary, try not to feed your cat within four hours of the flight. Food should be digested within that time frame, and hopefully, your pet will relieve itself one last time before traveling. In addition, food in the stomach could cause motion sickness, so an empty stomach while flying is better.
If you think your cat will have a problem holding its urine on the plane, you could try a cat diaper. But we recommend trying them out before traveling, as some cats may not appreciate wearing something on their bottom section.