Can you return a concert ticket if your plans have changed?

Whether you can get a refund on your ticket depends on the organizer's and venue's terms. Usually you can return a ticket if you contact the box office or through your account on the ticket sales website, but they often charge a commission or limit the refund period. I'd suggest checking the rules on your receipt or the website where you bought the ticket - it should say what the deadline is for getting your money back. If you bought the ticket recently, you've got a pretty good chance of getting at least most of the money back.

It depends on the terms of the platform where you bought the ticket. Usually you can only get a refund up until a certain date before the event, but a lot of organizers won't refund you at all if you're canceling for personal reasons - only if the concert itself gets canceled.