In December 2014, the band announced their second LP Coming Up for Air, and released a song called "Honest" on YouTube. A few days later they also published the song "Unclear". Following its release on 9 February 2015, the album entered the UK Albums Chart at number 4. "The One" and "Honest" both reached Top 40 in the UK Singles Chart. [ citation needed] Lead singer Steve Garrigan appeared on episode 18 of The Midnight Hour. Wyróżnienia – Złote płyty CD - Archiwum - Przyznane w 2016 roku" (in Polish). Polish Society of the Phonographic Industry . Retrieved 30 November 2016.

The Official Swiss Charts and Music Community: Awards (Kodaline; 'In a Perfect World ')". IFPI Switzerland. Hung Medien. Hardy, Tony (20 June 2013). "Album Review: Kodaline - In a Perfect World". Consequence of Sound . Retrieved 20 June 2013.Kodaline take it One Day at a Time with new album". Rte.ie. 1 May 2020 . Retrieved 6 September 2020. Canadian album certifications – Kodaline – In a Perfect World". Music Canada . Retrieved 4 February 2023. Best of 2013 – Top 20 Albums". Irish Recorded Music Association. Archived from the original on 14 November 2014 . Retrieved 10 June 2014. Sullivan, Caroline (7 June 2013). "Kodaline: In a Perfect World – review". Clash . Retrieved 22 June 2013.

Demands also wrote the single "One of Those Days" which they played on the Irish SuperValu channel BalconyTV. Vincent May Reflects on Growing with the Band and Adapting to the New Normal". Popspoken. 13 May 2020 . Retrieved 13 May 2020.Teaching each other the principles of songcraft, the music they came up with – some of which can be found on their self titled EP (released in Ireland on Friday 7th September) – isn’t wan or introspective or self-serving. Instead, it’s bold, epic and stirring.