Preheat the air fryer: Set to 380°F (193°C) for about 3 minutes. Lightly oil or spray the basket to prevent sticking.
Mix the meatball base: In a large bowl, combine ground turkey, breadcrumbs, egg, Parmesan, onion, garlic, parsley, oregano, salt, and pepper.
Stir gently with a fork or your hands until just combined. Do not overmix or the meatballs can turn dense.
Shape the meatballs: Use a tablespoon or small scoop to form 16–18 golf ball–size meatballs. Roll lightly to smooth.
Air fry in batches: Arrange meatballs in a single layer with a little space between them. Air fry for 9–12 minutes, shaking the basket halfway through, until internal temperature reaches 165°F (74°C) and the outsides are browned.
Make the cranberry sauce: While the meatballs cook, stir cranberry sauce, orange juice, honey, Dijon, and salt in a small saucepan over low heat for 3–4 minutes, until glossy and warm.
Adjust sweetness or acidity to taste.
Toss or serve: You can toss the cooked meatballs in the warm cranberry sauce or serve the sauce on the side for dipping. Finish with parsley or a touch of orange zest.