[1] In the playoffs of the 2014-2015 season, Aho scored the game-winning goal in overtime of Game seven of the finals and won the Finnish championship for Kärpät.

Aho was rated amongst the top 20 European forward skaters eligible for the 2015 NHL Entry Draft.

[8] After the Hurricanes failed to make the 2018 Stanley Cup playoffs, Aho represented Finland at the 2018 IIHF World Championship.

[15][16] On 7 July, the Hurricanes officially matched the offer sheet, re-signing Aho to a five-year, $42.27 million contract.

[17] On 26 July 2023, Hurricanes re-signed forward Sebastian Aho to an eight-year, $78 million contract extension.