According to the Lufthansa Pet Policy, in addition to pets travelling in handled packs, larger cats, dogs, and other animals, including reproducing bunnies and hares, may be transported in processed sacks. If your pet doesn't fit beneath your seat because it's too big, isn't a dog or cat, or is travelling for a very long time, Lufthansa will allow you to bring it on board in the things compartment, according to airline regulations
For more visit:https://airlinespolicy.com/pet-policy/lufthansa-pet-policy/