Yes, you can change your Lufthansa flight for free under certain conditions. If you modify your booking within 24 hours of purchase or if your fare type includes free changes, no fees apply. Contact Lufthansa's customer support at +(1-855)-738-4241 (US) or +44-808-599-8702 (UK) for assistance. For changes beyond 24 hours, fees may depend on your ticket type and travel circumstances.