Yes, Lufthansa has a 24 hours cancellation policy where you are eligible to get your full money refund after canceling the ticket within 24 hours of booking. There are so many ways to cancel your existing flights, including phone call, virtual method and airport.

How do I cancel my Lufthansa flight?

You can cancel your Lufthansa flight with numerous methods offered by them where you can get information related to Lufthansa cancellation policy, fee, and restrictions to have seamless experience. Here are some ways to cancel your ticket;

You can just call the airline number and have conversation with an agent who will guide you further regarding cancellation procedures and clear your doubts to have tension-free journey. After dialing the number 1800 645 3880, you have to listen in some IVR menus to speak with an executive about your matter of concern.
Furthermore, you can cancel the flight by using "My Booking" option available on the official website of Lufthansa, where you have to fill out your reference number and last name to continue with canceling the ticket. Once you visit your booking detail page, you can cancel the ticket and pay the amount if applicable.
Can I get a full refund if I cancel my Lufthansa flights?

Yes, you can get a full refund if you cancel your Lufthansa flight under the grace period, which is 24 hours of booking according to Lufthansa cancellation policy. If you want to apply for your refund, you can request through Lufthansa site or contact number.