On 29 May 2014, it was announced that Fabiański would join fellow Premier League side Swansea City on a free transfer when his Arsenal contract expired on 1 July. He said of the transfer, "The main reason I came to Swansea was because I want to be the number one goalkeeper." He made his competitive debut for the club on 16 August, a 2–1 win against Manchester United at Old Trafford in the first match of the Premier League season. On 7 December 2014, Fabiański was sent off in Swansea's 1–3 loss at West Ham United for a foul on Diafra Sakho.