On 13 July 2017, Suttner signed for another newly promoted side, Brighton & Hove Albion of the Premier League.

[3] Suttner made his debut for Brighton on 12 August 2017 in the opening game of the season at home to Manchester City in which The Seagulls lost 2–0 to the eventual champions.

[6] Suttner made his FA Cup debut in a 1–0 away win over Middlesbrough with Glenn Murray scoring a 90th-minute winner.

[7] Suttner played in three FA Cup matches where they were eventually knocked out by Manchester United in the Quarter Finals.

Suttner played in his first EFL Cup match on 28 August 2018 in a 1–0 home defeat against south coast rivals, Southampton.

[11] Suttner signed for Fortuna Düsseldorf on loan on 18 January 2019 who were playing their first season in the German top flight since the 2012–13 Bundesliga.

Suttner was a part of the squad for the UEFA Euro 2016 but did not make an appearance in any of the three games where Austria finished bottom of their group.