The Gunners have won their last 10 matches in all competitions after losing to Aston Villa on the opening day of the Premier League season.
"We are trusting each other," Flamini told the club's official website. "This is the result of a lot of work. Trust is very important. The main thing is to have quality in the team but after that you need to find team spirit.
"When you start helping each other, fighting for each other on the pitch, this helps you to win games. Especially during a difficult period, it helps you to stay focused, be a unit, and go from a bad period to a good period."
Arsenal can go back to the top of the Premier League table later today (Sunday) if they beat West Bromwich Albion at The Hawthorns.