One of the most popular Niall Horan shows of 2020 was Saturday May 16th at MGM Grand Garden Arena. Interest for that show was at its highest when ticket sales began. The interest resulted in high ticket prices that dropped as the show neared.
Across all Niall Horan shows in 2020, interest was strongest right when the shows were announced and tickets went on sale. Meanwhile, ticket prices typically fell about 100 - 105% from the date a show was announced until the days leading up to the show.