Combine soy sauce, honey, minced garlic, and grated ginger in a small bowl, whisking until the honey dissolves completely to form a glossy glaze.
Pat the salmon fillets dry with paper towels to remove excess moisture, which helps the glaze stick better.
Using a basting brush, generously brush the teriyaki glaze onto the top and sides of each salmon fillet, ensuring an even coating.
Preheat your air fryer to 400°F (200°C) and lightly spray the basket with cooking spray to prevent sticking.
Place the glazed salmon fillets skin-side down in the air fryer basket, making sure they aren’t touching each other for even cooking.
Air fry the salmon at 400°F for about 8–10 minutes, or until the glaze bubbles and caramelizes, and the edges start to crisp up.
During the last minute of cooking, open the air fryer and brush a little more glaze onto the fish if desired, allowing it to bubble and deepen in color.
Carefully remove the salmon from the air fryer and transfer to a serving plate. Sprinkle with toasted sesame seeds and sliced green onions for added flavor and visual appeal.
Serve immediately, enjoying the crispy edges, tender inside, and the sticky, caramelized glaze that coats the fish beautifully.