"Up in the Air" is a song recorded by American rock band Thirty Seconds to Mars, featured on their fourth studio album, Love, Lust, Faith and Dreams (2013). Written by lead vocalist Jared Leto, who also produced the song with Steve Lillywhite, "Up in the Air" is an introspective and passionate track reflecting upon human consciousness. It marked a departure from much of the band's previous work as it incorporates a more electronic-influenced sound as well as elements from new wave music.

Love, Lust, Faith and Dreams is the fourth studio album by American rock band Thirty Seconds to Mars, released through Virgin Records in the Netherlands on May 17, 2013, in the UK on May 20 and in the US on May 21. It was their first album in four years, following This Is War (2009), as well as their last album released through Virgin.