In a bowl, whisk together olive oil, soy sauce, minced garlic, smoked paprika, black pepper, and salt to create a marinade.

Place the flank steak in a resealable bag or dish, pour the marinade over it, and let it sit for at least 10 minutes (or up to 1 hour) to absorb the flavors.

Preheat your air fryer to 400°F (200°C) for 3 minutes to ensure a hot cooking environment.

Remove the steak from the marinade, pat it dry with paper towels, and place it in the air fryer basket without overlapping.

Air fry for 6 minutes, then flip the steak and cook for another 4-6 minutes for medium-rare, or until it reaches your desired doneness (130°F internal temperature).

Let the steak rest for 5 minutes before slicing against the grain to ensure maximum tenderness.