Air Fryer Beef Tenderloin (Filet Mignon)

Air fryer beef tenderloin turns the most tender cut on the cow into a 15-minute weeknight dinner — deeply seared on the outside, buttery and pink in the middle, no cast iron or smoke alarm required. If you’ve been saving filet mignon for restaurant nights, this is the recipe that ends that habit for good.

Air fryer beef tenderloin is the fastest way to get a steakhouse-quality filet mignon at home — a deep, mahogany sear on the outside, a rosy, butter-tender center, and the whole thing on your plate in under 15 minutes. No cast iron to scrub, no smoke alarm, no guesswork. If you’ve been saving filet mignon for restaurant nights, this is the recipe that changes that.

I cooked these on the grill for years before testing them in the air fryer, and now I genuinely prefer the air fryer. The circulating heat gives you an even crust without flare-ups, and because filets are lean, they’re forgiving of the short, hot cook the air fryer does best.

Why this recipe works

• 15 minutes, start to finish. Including the rest.
• No oil splatter, no smoke. The air fryer handles the high heat cleanly.
• Foolproof doneness when you cook to internal temperature, not by time alone.
• Built for 1, 2, 4, or 6 steaks — anniversary dinner or Sunday family meal, same recipe.

What is beef tenderloin vs. filet mignon?

These two names cause more confusion than any cut in the meat case, so a quick clarification:

• Beef tenderloin is the whole long, narrow muscle that runs along the cow’s spine. It barely does any work, which is why it’s the most tender cut on the animal.
• Filet mignon is the small, round steaks cut from the tapered end of that tenderloin.

So every filet mignon is beef tenderloin, but not every piece of tenderloin is filet mignon. This recipe works for either — individual filets (most common) or 1- to 2-inch medallions sliced from a whole tenderloin.

Ingredients

• Filet mignon steaks (about 6–8 oz each, 1.5 to 2 inches thick)
• Olive oil (avocado oil works too — both have high smoke points)
• Steak seasoning (Montreal, Kinder’s The Blend, or simply kosher salt + cracked black pepper)
• Optional finishing touches: compound butter, blue cheese crumbles, flaky sea salt

A note on thickness: this matters more than weight. A 6 oz filet that’s 2 inches tall cooks completely differently from a 6 oz filet that’s been butterflied flat. Aim for at least 1.5 inches.

How to cook beef tenderloin in the air fryer

Step 1 — Temper the steaks (15–20 minutes)

Pull the steaks out of the refrigerator and let them sit on the counter. Cold steak hitting hot air gives you a cold center by the time the outside is seared. This step is non-negotiable for even doneness.

Step 2 — Season

Pat the steaks completely dry with paper towels (moisture = steam, steam = no crust). Rub each one all over with olive oil, then season generously on every surface, including the sides.

Step 3 — Preheat the air fryer to 400°F

Run it empty for 3 to 5 minutes. A preheated basket is what creates the sear.

Step 4 — Cook

Place the filets in the basket with space between them. Air fry at 400°F for 10 minutes total, flipping at the 5-minute mark. Times will vary by thickness and your model — see the chart below and trust the thermometer over the clock.

Step 5 — Rest, then serve

Transfer to a plate and let rest 5 minutes loosely tented with foil. The internal temperature will climb another 3–5°F (this is “carryover cooking”). Top with a pat of compound butter and serve.

Air fryer beef tenderloin cook times by doneness

Pull the steaks 5°F before your target — they’ll keep cooking while resting.

Doneness	Pull temp (air fryer)	Final temp after resting	Approx. time at 400°F (1.5-in filet)
Rare	120°F	125°F	8 minutes
Medium-rare (recommended)	130°F	135°F	10 minutes
Medium	135°F	140°F	12 minutes
Medium-well	145°F	150°F	14 minutes
Well done	155°F	160°F	16+ minutes

For 2-inch filets, add about 2 minutes to each time. An instant-read thermometer is the only way to nail this — the visual cues people use for thicker steaks (the “thumb test”) are unreliable for filets because they’re so tender to start with.

Tips for the best air fryer filet mignon

• Dry surface = better crust. Pat with paper towels right before seasoning.
• Don’t crowd the basket. Steaks need air flowing around them; cook in batches if your basket is small.
• Salt early or salt right before — never 10 minutes before. Salting an hour ahead lets moisture come out and reabsorb (good for crust). Salting right before cooking is also fine. Salting 5–15 minutes before is the worst window — surface is wet but the salt hasn’t been reabsorbed yet.
• Add butter at the end, not the start. Butter on raw steak going into a 400°F air fryer just burns. Compound butter belongs on top of the resting steak.
• Rest is mandatory. Cutting in immediately drains the juice onto your plate instead of through your steak.

What to serve with air fryer beef tenderloin

Filet mignon is rich but mild, so it loves bright, sharp, or earthy sides:

• Air fryer asparagus or roasted broccolini
• Garlic mashed potatoes or duck-fat smashed potatoes
• A wedge salad with blue cheese and bacon
• Red wine pan sauce or a horseradish cream
• A glass of Cabernet Sauvignon, Malbec, or Bordeaux

Storage and reheating

• Refrigerator: Store leftover steak in an airtight container for up to 3 days.
• Freezer: Wrap tightly and freeze up to 2 months. Thaw in the refrigerator overnight.
• Reheat: The air fryer is also the best reheat method — 350°F for 3–4 minutes brings the steak back without overcooking it. Or slice cold leftover steak thin for a killer steak sandwich or salad.

Frequently asked questions

How long do you cook a 6 oz filet mignon in the air fryer? For a 1.5-inch-thick, 6 oz filet at 400°F, expect about 10 minutes total for medium-rare, flipping once at the halfway point. Always confirm with an instant-read thermometer pulled at 130°F.

Do you have to flip filet mignon in the air fryer? Yes. Even though air fryers circulate heat, the bottom surface contacts the basket and sears faster than the top. Flipping at the halfway point gives you an even crust on both sides.

Can you cook a whole beef tenderloin in the air fryer? Only in larger air fryers (6 quarts or more). For a 2- to 3-pound tenderloin roast, cook at 400°F for 5 minutes to sear the outside, then drop to 360°F until the internal temperature reaches 130°F for medium-rare (usually 20–25 more minutes). Rest 10–15 minutes before slicing.

Why is my air fryer filet mignon tough? Three usual suspects: it was overcooked (pull at 130°F max for medium-rare), it wasn’t rested (juices ran out), or it was sliced with the grain instead of against it. Filet mignon is the most tender cut on the cow — if yours is tough, the cook is the cause, not the meat.

Is air-fried steak healthy? Air-fried steak uses about a teaspoon of oil per steak — far less than pan-searing in butter or oil. It also drips excess fat into the basket below rather than letting the steak sit in it. Filet mignon itself is lean compared to ribeye or NY strip, and a 6 oz portion is roughly 400 calories.

What’s the best steak seasoning for filet mignon? Less is more. Filet has a delicate, buttery flavor that heavy seasoning blends can overwhelm. Stick with kosher salt and fresh-cracked pepper, or a clean steak blend like Montreal. Save the bold rubs for ribeye and skirt steak.

More air fryer steak and beef recipes

• Air Fryer Bacon-Wrapped Filet Mignon
• Blackstone Filet Mignon
• 47 Steak Recipes You Can Make Tonight
• 23 Mouth-Watering Beef Grilling Recipes

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