Preheat the air fryer to 400°F
Pat the steak dry with paper towels
Season both sides with salt, pepper, and any desired spices
Lightly brush or spray the steak with oil
Place the steak in the air fryer basket in a single layer
Cook for 6 to 10 minutes, flipping halfway through
Check internal temperature with a meat thermometer
Remove at 125°F for rare
Remove at 135°F for medium-rare
Remove at 145°F for medium
Remove at 150°F for medium-well
Remove at 160°F for well-done
Let the steak rest for 5 to 10 minutes before slicing