Bridges began performing on the small stage when he left school shortly after turning 17, doing stand-up comedy gigs at The Stand Comedy Club in Glasgow and then throughout the UK. Bridges said he was inspired to try stand up after reading Frank Skinner's autobiography. At 18, he reached the final of Channel 5's So You Think You're Funny competition at the Edinburgh Fringe. He performed at the 2008 Edinburgh Festival Fringe. Bridges appeared on Michael McIntyre's Comedy Roadshow on the BBC, where he performed at the Edinburgh Playhouse.
In 2010, Bridges took part in Channel 4's Comedy Gala, a benefit show held in aid of Great Ormond Street Children's Hospital, filmed live at the O2 Arena in London.
His debut DVD, titled Kevin Bridges: The Story So Far... Live in Glasgow, was released on 22 November 2010.
Bridges' television career started on Comedy Central UK, in April 2008, with a set on The World Stands Up. Shortly thereafter, he appeared on Comedy Store (also on Comedy Central). His performances on these shows and on the comedy circuit and at festivals led to his being given his first mainstream TV break on 5 June 2009 on BBC One's Michael McIntyre's Comedy Roadshow. Bridges was critically commended for his performance. Over 5 million viewers saw his debut and his entire 25-night run at the Edinburgh festival sold out in hours, with extra shows being subsequently added and also selling out. Bridges went on to be nominated for the 2009 Edinburgh Comedy Awards (formerly Perrier) in the best newcomer category. His TV work since then has included BBC One's Live At the Apollo and also a "Best of British Special" (Episode 7 of the 8th series) of 8 out of 10 Cats, in July 2009. He also appeared in BBC 2 Scotland's Gary: Tank Commander (episode 6). Bridges appeared in Rab C Nesbitt in the first episode of the new series in 2010, on Mock the Week in February 2010, and has appeared twice in Would I Lie To You?. He was a guest on the BBC One show Friday Night with Jonathan Ross on 28 May 2010. Since June 2010, Bridges is a regular performer on Channel 4's Stand Up for the Week. His six-part BBC One series, Kevin Bridges: What's the Story?, began on 8 February 2012. Bridges was asked to appear in I'm a Celebrity...Get Me Out Of Here, but turned it down.
On 6 March 2010, Bridges took part in the BBC 5 Live show Fighting Talk, where he came second behind Greg Brady, becoming the youngest person ever to appear on the show at the time (a record since broken by fellow comedian Jack Whitehall). In November 2010, he was also a contestant on BBC Radio 4's The Unbelievable Truth.
Bridges is the son of Andy and Patricia Bridges and has a brother, John, who is ten years older. He grew up in the Hardgate area of Clydebank and attended St Mary's Primary and St Columba's High. He left school when he was 16. He later studied social sciences at Glasgow Caledonian University.
Bridges is dating Glasgow restaurateur Kerry Monaghan.
He has been a massive supporter of Esker Amateur Boxing Club from Lucan, Co Dublin in their campaign for a permanent clubhouse for the last 5 years. He has stated that 'This club, based in Lucan have fascinated me with their campaign over the last few years and I can only lend my support to them'.
Bridges took part in the Soccer Aid 2014 charity football match in aid of Unicef on the Rest of the World team. He gave up drinking alcohol for a year in 2014.