In a bowl, combine the minced garlic, lime juice, orange juice, olive oil, ground cumin, chili powder, chopped cilantro, salt, and pepper. Mix well to create the marinade.

Place the flank or skirt steak in a resealable plastic bag or a shallow dish. Pour the marinade over the steak, ensuring it is well-coated. Seal the bag or cover the dish and refrigerate for at least 30 minutes to 2 hours for the flavors to penetrate the meat.

Preheat your air fryer to 400°F (200°C) for about 5 minutes. This ensures the steak will cook evenly.

Remove the steak from the marinade and let any excess marinade drip off. Place the steak in the air fryer basket in a single layer. Cook for 8-10 minutes, flipping halfway through, until the steak reaches your desired level of doneness. For medium-rare, the internal temperature should be about 135°F (57°C).

Once cooked, remove the steak from the air fryer and let it rest for 5 minutes. This allows the juices to redistribute throughout the meat, ensuring a tender and juicy steak.

After resting, slice the steak thinly against the grain. Serve with your favorite accompaniments such as tortillas, grilled vegetables, salsa, or guacamole.