Burris led the Tiger-Cats into the post-season with a record of 10–8, they defeated the Montreal Alouettes and then the Toronto Argonauts, but ultimately lost to the Saskatchewan Roughriders in the 101st Grey Cup game. Entering the off-season, Burris was set to become a free-agent in February 2014 unless he re-signed with the Tiger-Cats. He expressed his desire to stay with the Ti-Cats, saying, "I want to be back here, we've had a great run. I still feel like I can get it done." However, Burris was released by Hamilton on January 30, 2014, following the signing of Zach Collaros. On February 4, 2014, Burris signed a three-year contract with the Ottawa Redblacks. The 2014 CFL season was Burris' worst season statistically since his 2003 year with the Roughriders. Burris led the inaugural season of the RedBlacks to a 2–16 record. His completion percentage was his lowest since 2009, and only managed to score 11 touchdowns in 18 games, while throwing 14 interceptions. He threw the first passing touchdown in Redblacks history in their first game on July 3, 2014, against the Winnipeg Blue Bombers. He also led the team to their first victory during their first home game of the season on July 18, 2014, against the Toronto Argonauts. Burris returned as the starter for the 2015 season and was the only quarterback in the league to start all 18 games that year. With the addition of offensive coordinator, Jason Maas, and several key free agent signings, Burris experienced a renaissance season. On October 1, 2015, Burris set a CFL record for completions in a game connecting on 45 passes for a career-high 504 passing yards. On November 7, 2015, Burris became the CFL's record holder for most completions in a season with 481 completions. Additionally, Burris finished the 2015 season as the league leader in passing yards and completion percentage. He led the RedBlacks to a record of 12–6, earning a first round bye in the process. In the Eastern Final, Burris lead the Redblacks over his old team, the Tiger-Cats, personally advancing to the Grey Cup for the second time in three seasons. Prior to the Grey Cup, he was named the CFL's Most Outstanding Player for 2015. Burris left the 2016 season opening game in the third quarter after injuring the pinky finger on his throwing hand.