Preheat the oven to 450F with the oven rack positioned in the middle.
In a large bowl, combine the salt, smoked paprika, garlic powder, onion powder, olive oil, and honey. Zest the orange into the bowl, and combine.
Remove any excess fat from the chicken thighs, keeping the skin on. Pat them dry with a paper towel. Transfer the chicken thighs into the large bowl and toss to coat them with the seasoning. This can be done up to a day ahead, covered with plastic wrap, and stored in the refrigerator. Remove the thighs from the fridge for 20 minutes to allow them to come to room temperature before roasting.
Transfer the thighs into a rectangular baking dish, skin side up. Juice half of the orange into the baking dish, and slice the other half into half-moons, placing them between the chicken thighs.
Bake:
Bake in the preheated oven for 45 to 50 minutes, until the chicken's internal temperature reaches 175F. Remove the chicken from the oven and allow it to rest for 5 minutes before serving.