Lightly spray the air fryer basket with oil or use nonstick spray and preheat the air fryer to 400°F (204°C).
In a medium mixing bowl, whisk together 1/3 cup honey, 1/3 cup Dijon mustard, and 2 tablespoons olive oil until smooth.
Pat the 1 pound of bone-in, skin-on chicken thighs dry with paper towels. Gently loosen the skin and rub some of the honey-mustard mixture between the skin and the meat, then rub the remaining glaze over the outside of each thigh.
Place the chicken in the prepared air fryer basket skin-side up in a single layer, leaving space between pieces for air circulation.
Air fry at 400°F for 14 minutes, or until the internal temperature reaches 165°F (74°C) when measured with an instant-read thermometer and the skin is golden and crisp.
Remove the chicken from the air fryer and let rest a few minutes before serving.
Notes
Ensure thighs are not overcrowded for even crisping.
Use an instant-read thermometer to confirm doneness.
Patting the skin dry helps it get crispier.
Loosening the skin allows more glaze to flavor the meat.