Although she has filmed the last scene viewers will see, she still has two more days left at work as the soap shoots out of sequence.
The actress confirmed the news on Twitter writing: "I filmed my last on screen @itvcorrie scene today. Only two more days filming left."
Fans rushed to tweet Lucy back, wishing her luck.
One wrote: "Sorry you're leaving, good luck in the future."
A second tweeted: "We'll miss you."
Sally Ann Matthews, who plays Jenny Connor, wasn't happy at the news though - she tweeted: "I refuse to believe this information."
To which Lucy replied: "Don't I'm so sad I'm gunna throw up."
Lucy also posted a tribute to her on-screen family on her Instagram account.
She posted a picture of her alter ego with Bethany's clan when they filmed the camping holiday last year.
In the picture are Bethany's uncle, David Platt, played by Jack. P Shepherd, David's wife Shona Ramsey, played by Julia Goulding, Helen Worth, who plays Bethany's grandmother Gail Platt, and Sue Nicholls, who plays Bethany's great-grandmother Audrey Roberts.
She captioned the picture: "Only two more days of filming left... a lil' space in my heart for this lot forever."
Lucy joined the ITV soap as Bethany in 2015, taking over the role from twin actresses Amy and Emily Walton.
After being away from the cobbles for eight years, the troublesome teen ran away from Milan stealing Sarah's money to return to England.
Sarah soon followed, furious at what her daughter had done.
During her five years on the show, Lucy's character has been involved in some big storylines.
After being bullied at school, Bethany was groomed by older man Nathan Curtis, who led her to believe she was in a loving relationship, when he was really charging his friends to sleep with her.
However Bethany's friend Craig managed to prove to Kayla that her father Neil had been part of Bethany's abuse.
Over the last several months, Bethany has started to fall for Daniel Osbourne, despite him being married to Sinead.
After Sinead passed away, he kept his distance from Bethany, but recently they have been helping each other through tough times.
He is encouraging her to better herself and will even help her apply for a creative writing course next week, but will this be the reason Bethany leaves the cobbles?
Will you miss Bethany on Corrie?
Coronation Street airs on Mondays, Wednesdays and Fridays at 7.30pm and 8.30pm on ITV.
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