[2] The group released its first digital indie single "Basket"[3] in Japan on October 1, 2013, with the four-member line-up of Kwon Kwang-jin, Lee Seung-hyub, Cha Hun and Kim Jae-hyun.

[6] In January 2011, Kwang-jin returned to train under FNC Entertainment meeting trainees Seung-hyub, Jae-hyun and Cha Hun.

Prior to the debut of N.Flying, lead vocal Park Rai-On left the band in early 2013 due to mandatory military service in his native country of Singapore.

FNC Entertainment subsequently confirmed that his contract was terminated to make way for the group's debut.

In 2013, Lee Seung-hyub appeared in Juniel's music video titled Pretty Boy, playing her love interest she meets at a café.

[8] Yoo Hwe-sung was previously introduced as a male trainee to represent FNC on the Mnet survival show, Produce 101 Season 2.

In 2019, Dongsung joined N.Flying activities as a session bassist prior to his official debut with the band in 2020.

[10] On October 1, they released their first indie single album titled Basket and performed as the opening act at F.T.

[17] N.Flying was supposed to make their Korean debut in 2014 but it was delayed after the leader of the band, Seung-hyub, injured his knee in July.

[19] It is also revealed that their debut EP Awesome will be released on May 20 along with the title song's music video.

[22] A day later, FNC Entertainment released the full music video features AOA's Kim Seolhyun as the lead role.

[24] A day later, FNC Entertainment confirmed that N.Flying would be releasing their first single album, Lonely, on October 22.

[41] On December 19, 2018, it was announced that Kwang-jin would voluntarily take a break from the group due to arising allegations of inappropriate behavior online.

[44] Following the release, their concert series "N.Flying Fly High Project Note 2 2019" was held on January 19 at MUV Hall.

[45] "Rooftop" first entered the lower ranks of Korean music charts and soon after there had concluded their promotions on music shows in early March, the song gained sudden popularity and went viral after an anonymous person shared it to an online community.

[53] N.Flying held their solo concert series "N.Flying Fly High Project Note 4" on July 20 at Yes24 Live Hall.

[55] The group held their solo concert series, "N.Flying Fly High Project Note 5" at Haneulyeon Theatre, Busan Cinema Center on November 23 and 24.

[62] N.Flying held a late-night online concert series called "Noob Con", on July 25 and August 2.

[66] On April 6, 2022, N.Flying announced that they would hold a solo concert, "Let's Meet and Talk" as part of the Sangsang Madang Music Trip.

[68] In September, the poster for the eighth EP, Dearest was released through the group's official social media.

[74] On May 26, 2023, FNC announced that the remaining two active members, Lee Seung-hyub and Yoo Hwe-seung, would go on tour.