During the campaign, Rämö shared goaltending duties with Miika Wiikman, putting up excellent statistics and en route to the team's SM-liiga championship.

With the prospect of another return to the AHL for the 2009–10 season, on 23 June 2009, Rämö signed a two-year contract with Russian team Avangard Omsk of the Kontinental Hockey League (KHL).

[2] In January 2011, Rämö, for the second consecutive year, was selected to be the starting goaltender for the Eastern Conference in the KHL All-Star Game, collecting more fan votes than any other player in the league.

Ahead of the 2013–14 season, during the pre-season, he won the job to replace the retired Miikka Kiprusoff as Calgary's starting goaltender over Joey MacDonald and Reto Berra.

Rämö was not called into action by the Flames until he replaced Hiller early in Calgary's Game 6-clinching Western Conference Quarterfinals victory over the Vancouver Canucks.

On 7 February 2017, having played three games with the Marlies in which he remained winless, he was released from his PTO contract and returned to Finland to continue his recovery to full health.

As a free agent in the 2019–20 season, Rämö signalled his return to health in agreeing to a one-year contract with Swedish club, Djurgårdens IF of the SHL on 4 October 2019.