Pat the salmon dry. Use paper towels to remove surface moisture. This helps the marinade cling and promotes better browning.
Mix the marinade. In a bowl, whisk soy sauce, honey, olive oil, lemon juice, vinegar, garlic, ginger, smoked paprika, red pepper flakes, and a few grinds of black pepper. Taste and adjust.
If it’s too salty, add a bit more honey or lemon. If it needs salt, add a pinch.
Marinate the salmon. Place fillets in a shallow dish or zip-top bag. Pour in the marinade, coating all sides.
Let sit for 15–30 minutes in the fridge. Don’t go much longer, or the acid can start to change the texture.
Preheat the air fryer to 390°F (200°C) for 3–5 minutes. Lightly oil or spray the basket to prevent sticking.
Arrange the salmon. Shake off excess marinade and place fillets in the basket, skin-side down if using skin-on.
Leave space between pieces for air flow. Reserve a tablespoon or two of marinade for brushing.
Air fry. Cook for 7–10 minutes, depending on thickness. At the 5-minute mark, brush the tops with a little reserved marinade for extra shine and flavor.
Check doneness. Salmon is done when it flakes easily and the thickest part reaches 125–130°F (52–54°C) for medium.
If you prefer more done, go to 135°F. Avoid overcooking.
Rest and serve. Let salmon rest 2 minutes. Serve with lemon wedges and herbs.
Add rice, quinoa, roasted veggies, or a simple salad on the side.