[4] "Fly Away" premiered on Australian radio station Nova 96.9 on 13 August 2015, before it was released for digital download the following day.
We ended up writing a song about a perfect day: It just rained so it felt like London, we were in California so we were talking about the ocean.
"[8] Maria Sherman of Fuse.tv stated that the track sounds similar to "2002 Good Charlotte and 2006 All Time Low with a modern twist.
"[9] Carolyn Menyes of Music Times described the song as early 2000s pop punk, comparing the sound to Jimmy Eat World.
She also added, "With a speedy tempo and those signature shouted snarls that fans of 5SOS are all too familiar with, this new track helps to expand 5 Seconds of Summer's exploration of what exactly pop-punk can be in 2015.