Speaking after Conor Wilkinson's first-half penalty proved to be enough to secure all three points for the Saddlers, Flynn was keen to praise his side for their determined, disciplined display.
With the result extending their unbeaten run to four league games, the Saddlers are now twelve points clear of the relegation zone and can, at least for now, begin to think about another season in the fourth tier.
Flynn, who had only played one of his five games at the Banks's, went on to confirm that several of his first-teamers were short of full fitness with of Hayden White, Manny Monthe and Tyrese Shade making the cut whilst the likes of Lee Tomlin was forced to sit on the sidelines.
With members of the local media in attendance, Michael said; "We knew it wasn’t going to be the prettiest of games with how, without being disrespectful, Sutton play.
"They like to get the ball into the box as quick as possible and cause the opposition to make mistakes.
"They have wingers who want to constantly put crosses in the box for their frontmen, and we defended it superbly.
"I’m very pleased for the players because they stood up and won their individual battles. We knew what it was going to be.
"We'd worked on it in training. But I thought we played some good stuff as well, especially second half.
"We created a lot of good opportunities which could have got us a second goal, a little bit of decision-making again, which I’ve said a couple of times now.
"The most pleasing thing for me is Hayden White has had Covid and been really struggling, Manny Monthe has had swelling on his knee and Tyrese Shade has been ill.
"I had three players who, if we had a deeper squad, might not have started. Those three were colossal and showed an unbelievable character and commitment to the cause."