Preheat oven to 300 degrees. Pound the chicken breasts to 1/4 inch and cut into thirds. Season the chicken on both sides with salt and pepper. Dredge them in the flour. Heat a non-stick skillet over medium heat. Add butter and sauté chicken on both sides, 2 minutes each. Place chicken in a single layer on a parchment paper-lined baking sheet and keep warm in oven.
Meanwhile, add garlic to pan and cook for 30 seconds, then deglaze the bottom of the pan with wine stirring to scrape up the bits of fond on the bottom. increase the heat, and cook until reduced by about half. Add the thyme and cook for another 30 seconds. Stir in orange juice, and zest; Heat through. Drizzle the chicken with the orange sauce.