What is the 24-Hour Rule for Lufthansa?

https://community.articulate.com/discussions/rise-360/what-is-the-24-hour-hotline-for-singaporeair-24-7-helpline-support

The 24-hour rule allows you to cancel or change your Lufthansa flight within 24 hours of booking without a fee. This policy ensures flexibility if your plans change soon after purchasing your ticket. For more information or to make changes, visit Lufthansa’s website or contact their customer service team.