Whisk together 2 tablespoons oil, lime juice, cilantro, garlic, cumin, and red pepper flakes. Add chicken and toss to coat. Let marinate in fridge 30 minutes and up to 2 hours or overnight.
When ready to cook, preheat oven to 425°. In a large ovenproof skillet over medium-high heat, heat remaining 2 tablespoons oil. Season chicken with salt and pepper, then add to skillet skin-side down. Sear until skin is golden and crispy, about 6 minutes before pouring in remaining marinade. Flip and cook 2 minutes more.
Transfer skillet to oven and bake until chicken is cooked through, 10 to 12 minutes.
Serve over rice drizzled with pan drippings.