[5] With the exception of Maho, all of her siblings are figure skaters, and Miyu is also a popular child actress in Japan.

[5] Honda previously studied and trained at Kansai University Middle School, which has an ice rink.

[6] In the 2011–12 season, Honda stood on the podium at four consecutive Japanese Novice Championships, with a gold medal in 2012–13.

She placed 5th at the Japan Junior Championships in 2013–14 and 4th the following season, training at Kansai University Middle School's ice rink.

She won gold at her second JGP event, in Zagreb, Croatia, after placing third in the short and first in the free — outscoring Wakaba Higuchi by 6.16 points.

At the 2015–16 JGP Final in Barcelona, Honda won the bronze medal behind Russia's Polina Tsurskaya and Maria Sotskova.

Ranked second in the short program and first in the free skate, she was awarded gold in Hungary, ahead of Russia's Maria Sotskova and teammate Wakaba Higuchi.

Honda began her senior debut with a gold medal at the 2017 US Classic in Salt Lake City.

On March 30, she announced she was changing coaches to Rafael Arutyunyan and was moving to the US with her brother, Taichi, to live and train full-time.

In October, she competed at her first Grand Prix event of the season, 2018 Skate America, where she was fourth in the short program and placed eighth overall.

She then competed at her second Grand Prix event in November, 2018 Internationaux de France, where she placed fourth in the short program and finished sixth overall.

Initially assigned to only one Grand Prix, Honda was subsequently added to the 2019 Skate Canada International roster following the withdrawal of Mai Mihara.

Whilst travelling from the arena in Kelowna, she and fellow Japanese skater Keiji Tanaka were involved in a car crash.

[23] On January 5, 2024, Honda's management announced her decision to retire from competitive figure skating at the end of the season.