How Long To Air Fry A Sirloin Steak | Thermometer Is Key

For a 1-inch sirloin steak at 400°F, air fry about 10–12 minutes for medium-rare, flipping halfway.

You drop a beautiful sirloin into the air fryer basket and set the timer for ten minutes. When you slice into it, you find it either blue-rare or closer to shoe leather. That guessing game is exactly why so many home cooks struggle with air fryer steaks — and you’re not alone.

The truth is there’s no single perfect number for how long to air fry a sirloin steak. Thickness, your specific air fryer model, and the steak’s starting temperature all influence the clock. Most recipe developers agree on a rough range of 7 to 14 minutes at 400°F for a 1-inch steak, depending on doneness. But the most reliable way to nail it every time is to use an instant-read thermometer, which takes the guesswork out completely.

The Standard Time Ranges for Sirloin Steak

For a standard 1-inch thick sirloin, most air fryer recipes set the temperature at 400°F (200°C). The total time you’ll see across blogs is roughly 7 to 14 minutes, depending on how done you like it.

For rare (125–130°F internal), expect about 5–7 minutes. Medium-rare (130–140°F) usually lands around 8–10 minutes. Medium (140–150°F) takes about 10–12 minutes, and medium-well (150–160°F) pushes closer to 13–15 minutes. These numbers assume you flip the steak halfway.

If your steak is thicker — say 1.5 inches — add roughly 2–4 minutes to each of those windows. Some recipes suggest 10–12 minutes for rare on a 1.5-inch steak and up to 15 minutes for medium-well. The takeaway: thickness is the biggest variable after your air fryer model.

Why Your Air Fryer Time Might Be Different

Even if you follow a recipe to the letter, your actual cook time could be a few minutes shorter or longer. That’s not a mistake — it’s normal. Air fryers behave differently, and your steak’s specifics matter just as much as the temperature you set. Understanding these variables will help you adjust on the fly.

• Thickness of the steak: A 1-inch steak cooks faster than a 1.5-inch cut. Even a quarter-inch difference shifts the time by a minute or two.
• Air fryer model and size: Smaller or more powerful units cook faster and may require shorter times than larger or older models.
• Starting temperature: A steak straight from the fridge takes longer than one that has sat at room temperature for 20 minutes.
• Desired doneness: Rare needs the least time; well-done needs the most. The range between them is roughly 8–10 minutes for a 1-inch steak.
• Preheating or not: Preheating the air fryer generally yields a more even sear and consistent cook time, but your total time will be shorter by the preheat duration.

So don’t set the timer and walk away. Start checking about 2–3 minutes before the recipe suggests, and rely on your thermometer to decide when it’s done. The timer is a guide — the temperature is the truth.

Mastering Air Fry Sirloin Steak Timing

The Littlesunnykitchen site provides a useful air fryer steak time chart that suggests 7 minutes for rare up to 12–14 minutes for medium at 400°F. Another recipe blog, Skinnytaste, recommends 10 minutes (turning halfway) for medium-rare and 12 minutes for medium on a 1-inch steak.

As you can see, times cluster around the same window, but each source’s numbers differ by a minute or two. That’s why it’s smart to treat any printed time as a starting point, not a finish line. Your air fryer’s personality and your steak’s thickness will shift the sweet spot.

Also remember carryover cooking: the steak’s internal temperature will climb about 5°F during the resting period. That means you should pull it from the air fryer when it’s 5°F below your target. Letting the steak rest for 5–10 minutes allows juices to redistribute — skipping the rest can lead to a dry, less tender steak even if you cooked it perfectly.

These times are based on recipes tested in standard air fryers. Your results may vary by 1–3 minutes depending on the factors we covered earlier. Always aim for temperature, not time.

How to Air Fry a Sirloin Steak Step by Step

Preheat your air fryer to 400°F. Take your steak out of the fridge 20–30 minutes beforehand to take the chill off. Season generously with salt and pepper or your favorite steak rub. This sequence helps ensure even cooking and a nice crust.

1. Preheat and season. Preheat air fryer to 400°F. While it heats, pat the steak dry with paper towels and season all over.
2. Place in the basket. Lay the steak in a single layer in the air fryer basket. Avoid overlapping; if cooking multiple steaks, work in batches.
3. Cook and flip. Cook for half the estimated time (e.g., 5 minutes for a 10-minute target). Flip the steak and continue cooking until it reaches your target internal temperature.
4. Rest and serve. Transfer the steak to a cutting board and let it rest for 5–10 minutes. The final temperature will rise about 5°F during this time. Slice against the grain and serve.

Using a probe thermometer that stays in the steak while it cooks can save you from opening the basket repeatedly. Many air fryer models have a convenient hole for probe insertion. If yours doesn’t, check the temperature toward the end of the recommended time.

Reheating Leftover Sirloin Steak in the Air Fryer

If you have leftover sirloin steak, the air fryer is a great way to revive it without drying it out. Many people toss leftover steak in the microwave, which turns it rubbery. The air fryer preserves the crust while warming the interior evenly. The reheat steak in air fryer guide at Everydayfamilycooking recommends 350°F for 3–5 minutes.

Why 350°F instead of 400°F? A lower temperature warms the steak evenly without over-cooking the exterior. If your steak is thick, you may need closer to 5 minutes; thin slices might be done in 2–3 minutes. Check at 3 minutes and add time as needed.

For reference, here’s the target internal temperature for each doneness level when cooking from raw. These are the same numbers you should aim for at the end of your initial cook time.

Always remember: the times are guidelines, but the thermometer never lies. Trust the temperature over the timer for consistent results every time.

The Bottom Line

Air frying a sirloin steak is fast and effective, but the exact time depends on thickness, air fryer model, and doneness preference. Most recipes suggest about 10 minutes at 400°F for a 1-inch medium-rare steak, but always use a meat thermometer to confirm. Let the steak rest after cooking for the best texture, and preheat the air fryer with a flip halfway through for an even crust.

Whether you’re cooking for one or a family, the air fryer delivers a reliably good sirloin — especially once you stop relying on the timer and start reading the temperature.