"Flight 643" is a single which appeared in DJ Tiësto's first album, In My Memory.

The song had great success that it was adapted with vocals by Suzanne Palmer in 2002, it was also released as a single and titled "643 (Love's on Fire)".

The big room house DJ John Christian made a rework of the track in October 2013 and got his version released on Tiësto's label, Musical Freedom.

It's featured in the soundtrack for the 2001 videogame FIFA Football 2002 In April 2023 Dutch duo Hel:sløwed, a joint venture of Misja Helsloot and Michael de Kooker, released a remake of the track on Tiësto's Deep House imprint, AFTR:HRS.

Netherlands, Scandinavia Maxi Single[2] Netherlands Maxi Single[3] United Kingdom Maxi Single[4] Magik Muzik 12" Vinyl[5] Nebula 12" Vinyl[6] Nebula, Nettwerk America, Independence Records, Universal Licensing Music (ULM) 12" Vinyl[7] Nettwerk America 12" Vinyl[8] Nettwerk America 12" Vinyl[9] Richard Durand Remixes[10]