Pound the chicken for even cooking. Place the breasts between two sheets of parchment and gently pound the thicker end until each piece is about 3/4 inch thick.
Even thickness means juicy results and no dry edges.
Pat dry. Use paper towels to remove surface moisture. Dry chicken browns better and helps the spices stick.
Mix the marinade. In a small bowl, combine olive oil, lemon zest, lemon juice, garlic, oregano, thyme, rosemary, paprika, salt, pepper, and red pepper flakes if using. It should smell bright and herby.
Coat the chicken. Add chicken to the bowl and turn to coat thoroughly.
Let it sit for 10–20 minutes on the counter while you heat the air fryer. This short rest boosts flavor without over-marinating in acid.
Preheat the air fryer to 375°F (190°C). A hot basket helps with browning. Lightly mist the basket with cooking spray to prevent sticking.
Arrange the chicken in a single layer. Leave a little space between pieces for air circulation.
Don’t crowd the basket; cook in batches if needed.
Air fry for 8–10 minutes. Flip at the halfway mark. Start checking doneness at 8 minutes; thickness and model may vary.
Check the temperature. Use an instant-read thermometer inserted into the thickest part. You’re aiming for 160–165°F (71–74°C).
Pull at 160°F; carryover heat will finish the job.
Rest for 5 minutes. Tent loosely with foil. Resting keeps the juices in the meat, not on the cutting board.
Finish and serve. Sprinkle with fresh parsley or dill, add a squeeze of lemon, and slice against the grain. Pair with roasted veggies, a simple salad, or rice.