Pat the salmon cubes dry with paper towels to ensure a crispy texture.
In a medium bowl, whisk together soy sauce, honey, sesame oil, ginger, garlic, cornstarch, and pepper.
Toss the salmon cubes in the marinade until evenly coated and let sit for 5 minutes.
Preheat the air fryer to 400°F (200°C).
Lightly coat the air fryer basket with olive oil.
Arrange the salmon bites in a single layer in the basket, leaving space between each piece.
Air fry for 8 to 10 minutes, shaking the basket gently halfway through, until the edges are caramelized and the salmon is cooked through.
Garnish with sesame seeds and green onions before serving.