How Long To Bake Boneless Chicken Thighs At 400?

The quest for impeccably baked poultry is a journey many embark on, with the hope of achieving a dinner masterpiece.

Staring at the kitchen timer and wondering if your boneless chicken thighs have transformed into that golden, juicy perfection?

But how long to bake boneless chicken thighs at 400 just the right amount of time in the oven?

That’s the culinary conundrum we’re here to unravel.

So grab your apron, preheat your oven, and let’s explore the nuances of baking time to ensure your boneless chicken thighs are nothing short of sublime. 

How Long To Bake Boneless Chicken Thighs At 400?

Baking times for boneless chicken thighs can vary based on the size, thickness, and density of the meat.

At 400 degrees Fahrenheit, a general rule of thumb is to bake boneless chicken thighs for 25 to 30 minutes.

This timeframe should leave you with tender meat that’s slightly crispy on the outside.

But how do you know when your boneless chicken thighs are thoroughly cooked?

A meat thermometer inserted into the thickest part of the meat should read 165 degrees Fahrenheit.

Alternatively, you can also make a small cut in the thickest part of the thigh and check if the juices run clear.

How To Bake Boneless Chicken Thighs?

Before getting into today’s biggest question, let’s learn how to bake boneless chicken thighs, it’s extremely simple and easy to do.

Baking boneless chicken thighs to succulent perfection is an art that begins with preheating your oven to a sizzling 400 degrees Fahrenheit.

Place them in a single layer in a baking dish or on a lined baking sheet.

Season the thighs to your liking, or marinate for extra flavor.

Then bake in the preheated oven.

Allow the chicken to rest for a few minutes before serving, and you’ll have a dish that’s both delectably moist and pleasingly flavored.

Some Factors That Affect The Baking Time Of Boneless Chicken Thighs

As with any cooking method, various factors can affect the baking time of boneless chicken thighs.

Some of these factors include:

1. The size and thickness of the chicken thighs: Thicker cuts will take longer to bake compared to thinner ones.

2. The type of oven used: Convection ovens may require shorter baking times compared to conventional ovens.

3. The initial temperature of the chicken: If your boneless chicken thighs are straight out of the fridge, they may take longer to bake compared to ones that are at room temperature.

4. Personal preference: Some people prefer their chicken thighs more well-done, while others like them slightly pink in the middle. This can affect the baking time as well.

5. Oven calibration and accuracy: If your oven runs hot or cool, the actual temperature inside may vary from the setting, impacting the cooking duration.

6. Spacing between thighs: Overcrowding the pan can result in uneven cooking and potentially increase baking time, as the heat circulates less freely.

It’s essential to understand the variables that can impact baking time and use them to your advantage.

With these tips in mind, you can confidently serve up perfectly baked boneless chicken thighs every time.

Should You Brine and Marine Boneless Chicken Thighs Before Baking At 400?

Once you know how long to bake boneless chicken thighs at 400 and how to cook them, we recommend you know some more tips such as marinating the chicken before baking.

Brining chicken before baking can help retain moisture and enhance flavor.

To brine your boneless chicken thighs, simply soak them in a saltwater solution for an hour before cooking.

This also helps to reduce cooking time, so keep an eye on the oven.

After you’ve mastered the foundational aspects of baking boneless chicken thighs, experimenting with different seasonings and glazes can bring new life to your dish.

Try a sweet and spicy glaze of honey and chili, or a classic herbed rub with thyme, rosemary, and garlic.

Each variation allows you to personalize the dish and keep your dinner menu fresh and exciting.

The key to a perfect glaze is applying it at the right time: too early and it may burn, too late and it won’t properly caramelize.

A good rule of thumb is to brush on glazes or sugary sauces in the last 10-15 minutes of baking time.

With each attempt, you’ll find the perfect balance that satisfies your taste and complements the succulent flavor of well-baked chicken thighs.

Tips For Perfectly Baked Boneless Chicken Thighs

To elevate your baked chicken from mundane to magnificent, attention to detail and a few chef-approved tips can make all the difference.

Here’s how to master the art of cooking this dinner staple to perfection.

1. Patting your chicken dry before baking helps to achieve a crispier exterior.

2. For added flavor, you can marinate the chicken for at least 30 minutes before baking.

3. If using frozen chicken thighs, be sure to thaw them completely before cooking.

4. To prevent your boneless chicken thighs from sticking to the baking dish or sheet, you can lightly grease it with oil or line it with parchment paper.

5. For a more even cook, try to ensure the thighs are of similar size and thickness.

6. Keep an eye on your chicken towards the end of the baking time to prevent overcooking.

Whether you’re a seasoned cook or new to the culinary scene, these simple tricks will ensure your boneless chicken thighs emerge from the oven with maximum flavor and the ideal texture.

What To Serve With Boneless Chicken Thighs?

Now that you know how long to bake boneless chicken thighs at 400 and get a delicious baked boneless chicken thigh meal, what should you serve them with?

The options are endless, but here are a few delicious ideas to get your creative juices flowing:

1. Roasted vegetables: Pairing your chicken thighs with oven-roasted vegetables like carrots, broccoli or bell peppers adds extra flavor and nutrition to your meal.

2. Potatoes: Baked, mashed, or roasted potatoes make a hearty and satisfying side dish to accompany your chicken.

3. Grains: Rice, quinoa, or couscous all make excellent additions to a plate of boneless chicken thighs.

4. Salad: For a lighter option, toss up a fresh salad with leafy greens, cherry tomatoes, and your favorite dressing.

5. Pasta: Add some Italian flair to your meal by serving boneless chicken thighs alongside a delicious pasta dish, such as spaghetti marinara or creamy fettuccine alfredo.

6. Legumes: A side of nutrient-rich legumes, like lentils or beans, can add a comforting and hearty element to your meal, complementing the richness of the chicken thighs.

7. Bread: Serve up some crusty bread to soak up any juices and add a textural contrast to your chicken dish.

8. Stir-fried greens: Quick stir-fried greens such as spinach, bok choy, or kale seasoned with garlic add a vibrant and healthy side option.

9. Sauces and dips: A homemade sauce or dip, like a cool tzatziki or a spicy mango chutney, can enhance the flavors of your baked chicken thighs.

10. Wine pairing: Lastly, choosing the right wine, such as a light-bodied white or a fruity red, can elevate your dining experience to new levels of enjoyment.

Each side dish or accompaniment brings out the natural savoriness of the chicken, creating an array of flavors and textures on your plate.

The most important thing when it comes to pairing is to choose sides that you and your family will enjoy.

Storing and Reheating Baked Boneless Chicken Thighs

If you have leftovers or want to prepare your boneless chicken thighs in advance, storing and reheating them correctly can ensure they remain just as tasty as when freshly baked.

1. To store: Allow the chicken to cool completely before transferring it to an airtight container or wrapping it tightly in foil or plastic wrap.

2. To reheat: Preheat the oven to 350 degrees Fahrenheit and place the chicken in a baking dish. Cover with foil and bake for about 10-15 minutes, or until heated through. Alternatively, you can microwave the chicken in a medium setting for 2-3 minutes.

Pro tip: To prevent dryness when reheating, add a splash of broth or water to the dish before heating.

Now that you have all the tips and tricks for perfectly baked boneless chicken thighs, it’s time to put them into practice and impress your family and friends with a delectable and juicy meal.


The question of how long to bake boneless chicken thighs at 400 degrees is a delicate balance of understanding your ingredients and knowing your kitchen equipment.

The variables of size, thickness, starting temperature, and personal preference all play pivotal roles in determining the ideal baking time, which typically ranges between 25 to 40 minutes.

By following the tips and considerations we discussed, like ensuring even thickness, using a thermometer, and being aware of the main affected factors, a novice cook can achieve a juicy dish inside with a delectable crisp exterior.

Pair your beautifully baked chicken thighs with any number of side dishes for an enjoyable meal that speaks to your culinary skills and satisfies your palate.

Happy baking!

How Long To Bake Boneless Chicken Thighs At 400?

This baked boneless chicken thigh recipe is perfect for a quick weeknight meal or for serving guests at a dinner party.
Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Servings 6


  • 6 boneless, skinless chicken thighs
  • 1/4 tsp of black pepper
  • 2 tbsp of olive oil
  • 1 tsp of onion powder
  • 1/2 tsp of salt
  • 1/4 tsp of cayenne pepper
  • 1 tsp of garlic powder
  • 1 tsp of smoked paprika
  • 1/2 tsp of ground cumin


  • Preheat your oven to 400 degrees Fahrenheit.
  • In a small bowl, mix together olive oil and all the dry seasonings: black pepper, onion powder, salt, cayenne pepper, garlic powder, smoked paprika, and ground cumin.
  • Place the chicken thighs on a large baking dish or sheet pan lined with parchment paper.
  • Drizzle the olive oil and seasoning mixture over the chicken thighs, making sure to evenly coat each piece.
  • Bake in the preheated oven for 25 to 30 minutes, or until the internal temperature of the chicken reaches 165 degrees Fahrenheit.
  • Let the chicken rest for 5 minutes before serving. Serve with your choice of sides such as rice, vegetables, or a salad.
Keyword baked boneless chicken thighs, how long to bake boneless chicken thighs at 400

Chef Chip Roman is one of the most exciting and talented chefs in Philadelphia. He has his own catering business, Charles Roman Catering, as well as Roman Restaurant Group which includes Blackfish, Mica, and Ela. He graduated from Drexel University in 2002 with a degree in business and culinary arts. Chip Roman is a classically trained chef who has worked in some of the most prestigious kitchens and chefs in Philadelphia, including Le Bec Fin’s George Perrier and Marc Vetri’s Vetri.

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