On 5 August 2014 he joined Blackpool on a season-long loan. He made his debut for the club on 9 August. On 24 January 2015, he was omitted from the line-up to face Watford at Vicarage Road. Blackpool manager Lee Clark initially gave the reason as being a tactical – not monetary – one, but it was later revealed that Blackpool would have to pay his parent club a fee of £40,000 after Lewis had made a certain number of appearances for Blackpool. The payment would entitle Blackpool to sign Lewis permanently at the end of the loan deal. Blackpool attempted to terminate the loan, but the "Bluebirds" refused.