The X Factor star has been branded the least likely to win the competition with the odds of 66/1 - making her the rank outsider of the series.
Wildlife presenter Hamza Yassin is the current favourite to lift the Glitterball Trophy at 2/5 to win, with Helen Skelton a 2/1 shot ahead of Molly Rainford 40/1.
"Fleur entered Strictly as one of the frontrunners to go all the way, but the latest odds tell a completely different story as she'll head into tonight's finale as the rank outsider."
Hamza has been the bookie's favourite for the majority of the series.
Each celebrity and their partner will dance three times in the final.
One will be chosen by the judges, the other will be their own favourite dance from the series and the other will be a show dance.
Helen will perform the jive to Tightrope by Janelle Monae, while Hamza will boogie to Let's Face The Music and Dance by Irving Berlin.
Molly will show off her quickstep to Beyonce's Love On Top and Fleur will perform to a Destiny's Child mashup.
Of all the professional dancers that are still running in the competition, none of them have won the competition so far.
Fleur and Molly's partners Vito Coppola and Carlos Gu are both new this year to the show.
Helen's partner Gorka Marquez has been in the final before, but never won.
Will Mellor and his partner Nancy Xu were tearful on Strictly's spin off show after they were the latest to leave the competition.
Former Strictly professional Robin Windsor recently said how he thinks the dance-off should be axed.
He doesn't think that head judge Shirley Ballas should get the final decision and that instead the public vote should decide who is going home.
“It’s worked for years, but I don’t know how I feel about the dance off," he said.
“I think that’s where Shirley has the final vote, if it goes down to a split, then it’s just her decision.
“If it’s a split decision between the judges, then it should go to a public vote.
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“I feel like they can perhaps control who stays in the competition.”
Robin admitted that it's "really hard", because everyone has their favourite dancer.
“I sit at home and judge every week,” he noted. “There’s always somebody that touches us because dancing touches us emotionally.
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