If you need to modify your Lufthansa ticket, don't worry; with TicketChanges, you can simply change your flight whenever you want. You have complete control over your flight, including the ability to modify it, change it on the same day, and yes, you may change your Lufthansa flight for free if certain requirements are met, as detailed on their official website. If you'd like to speak with a live person at Lufthansa, call 1-888-413-6950 for further information.