How Long to Grill Chicken Thighs - The Complete Guide for Perfectly Juicy Chicken Every Time
Grilled chicken thighs are one of the easiest and most flavorful meals you can make. Whether you're cooking for a weeknight dinner, a backyard barbecue, or meal prepping for the week, chicken thighs are forgiving, affordable, and incredibly delicious.
But one question comes up again and again:
How long should you grill chicken thighs?
The short answer is 10 to 15 minutes for boneless, skinless thighs and 20 to 30 minutes for bone-in, skin-on thighs, depending on the heat of your grill and the thickness of the meat. More importantly, chicken thighs are done when they reach an internal temperature of at least 165°F (74°C), although many cooks prefer taking thighs to 175–185°F because the extra cooking time breaks down connective tissue, making them even more tender and juicy.
In this guide, you'll learn exactly how long to grill every type of chicken thigh, how to avoid common mistakes, and the simple techniques that consistently produce flavorful, juicy results.
Why This Topic Matters
Chicken thighs are naturally richer in flavor than chicken breasts because they contain more fat and connective tissue. That extra fat makes them much more forgiving on the grill, but it also means they cook differently.
Unlike chicken breast, which can dry out quickly, thighs actually improve when cooked slightly beyond the minimum safe temperature. Understanding this difference helps you:
- Prevent dry, overcooked chicken
- Achieve crispy skin when desired
- Cook safely without guesswork
- Serve juicy chicken every time
Knowing the proper grilling time also means you'll spend less time constantly checking the grill and more time enjoying your meal.
How Long to Grill Chicken Thighs
Grilling time depends on several factors:
- Boneless or bone-in
- Skinless or skin-on
- Thickness
- Grill temperature
- Whether the chicken starts cold or at room temperature
Here are the general guidelines.
Boneless, Skinless Chicken Thighs
Medium-High Heat (375–450°F)
- Grill for 5–7 minutes per side
- Total cooking time: 10–15 minutes
- Internal temperature: 165–175°F
Boneless thighs cook relatively quickly because heat can penetrate evenly from both sides.
Bone-In, Skin-On Chicken Thighs
Medium Heat (350–400°F)
- Grill skin-side down for 8–10 minutes
- Flip and cook another 10–20 minutes
- Total cooking time: 20–30 minutes
- Internal temperature: 175–185°F for best texture
Bone-in thighs require more time because the bone slows heat transfer.
Bone-In, Skinless Chicken Thighs
These generally require:
- 20–25 minutes
- Turn every 5–7 minutes
- Cook to at least 175°F
Frozen Chicken Thighs
It's best to thaw chicken before grilling.
While frozen chicken can technically be cooked on the grill, it cooks unevenly and increases the risk of burning the outside before the center is fully cooked.
For best results:
- Thaw overnight in the refrigerator.
- Pat dry before seasoning.
What You Need to Know Before Grilling
1. Grill Temperature Matters
One of the biggest mistakes is using extremely high heat.
Very hot grills burn the outside before the inside finishes cooking.
Aim for:
- Medium heat: 350–400°F
- Medium-high heat: 375–450°F
This gives you better control and more even cooking.
2. Thickness Changes Cooking Time
Not every chicken thigh is the same size.
Larger thighs may require several additional minutes.
Rather than relying only on time, always use an instant-read thermometer.
3. Internal Temperature Is the Best Guide
Cooking time is only an estimate.
The only reliable way to know chicken is done is by checking the thickest part of the thigh.
Minimum safe temperature:
165°F
Preferred temperature for thighs:
175–185°F
The higher temperature melts collagen and creates exceptionally tender meat.
4. Let the Chicken Rest
After grilling, allow the chicken to rest for 5–10 minutes.
Resting allows juices to redistribute throughout the meat instead of running onto the plate when sliced.
Step-by-Step: How to Grill Chicken Thighs
Step 1: Prepare the Chicken
Remove excess moisture using paper towels.
Dry chicken browns much better than wet chicken.
Trim excess skin or fat if desired.
Step 2: Season Generously
Chicken thighs pair well with:
- Garlic
- Paprika
- Onion powder
- Black pepper
- Kosher salt
- Italian herbs
- Lemon zest
- Smoked paprika
- Cumin
- Fresh herbs
Marinate for 30 minutes to overnight if desired.
Step 3: Preheat the Grill
Clean the grates.
Oil them lightly to reduce sticking.
Allow the grill to fully preheat before adding the chicken.
Step 4: Grill Without Constant Flipping
Place the thighs on the grill.
Allow them to cook undisturbed.
Turning too often prevents proper browning.
Flip only once when possible.
Step 5: Check Temperature
Insert an instant-read thermometer into the thickest portion without touching the bone.
Remove once the desired temperature is reached.
Step 6: Rest Before Serving
Tent loosely with foil.
Wait 5–10 minutes before serving.
This simple step makes a noticeable difference in juiciness.
Expert Tips
Use a Meat Thermometer
Professional cooks rely on temperature—not guesswork.
A thermometer eliminates undercooked or overcooked chicken.
Keep the Lid Closed
Closing the grill traps heat and cooks the chicken more evenly.
Avoid Pressing the Chicken
Pressing forces flavorful juices out of the meat.
Leave the chicken alone while it cooks.
Create Two Heat Zones
If your grill allows it, create:
- One hot side
- One cooler side
This gives you flexibility if flare-ups occur.
Oil the Chicken, Not Just the Grill
A light coating of oil promotes browning and helps seasonings adhere.
Common Mistakes to Avoid
Cooking Over Extremely High Heat
The outside burns while the inside remains undercooked.
Skipping the Thermometer
Cooking by color alone isn't reliable.
Always check internal temperature.
Flipping Too Frequently
Chicken develops better grill marks and flavor when left undisturbed.
Forgetting to Rest the Meat
Cutting immediately causes valuable juices to escape.
Starting With Ice-Cold Chicken
Allow chicken to sit at room temperature for about 20 minutes before grilling for more even cooking.
Frequently Asked Questions
How long do boneless chicken thighs take on the grill?
Usually 10–15 minutes over medium-high heat.
How long do bone-in chicken thighs take?
Generally 20–30 minutes, depending on size and grill temperature.
Should I grill chicken thighs with the lid open or closed?
For most of the cooking time, keep the lid closed.
This helps maintain even heat.
What temperature should grilled chicken thighs reach?
They are safe at 165°F, but many cooks prefer 175–185°F for maximum tenderness.
Can chicken thighs be slightly pink?
Sometimes yes.
A slight pink color near the bone doesn't necessarily indicate undercooked chicken.
Always rely on internal temperature rather than color.
How do I keep chicken thighs from sticking?
- Preheat the grill.
- Clean the grates.
- Lightly oil the grates or the chicken.
- Wait until the chicken naturally releases before flipping.
Should I marinate chicken thighs?
Marinating isn't required, but it adds flavor and can help keep the meat juicy.
Even a simple mixture of olive oil, lemon juice, garlic, herbs, and spices works beautifully.
Final Thoughts
Learning how long to grill chicken thighs is one of the easiest ways to improve your outdoor cooking. While timing provides a helpful starting point, the real secret is combining the right grill temperature with an instant-read thermometer and allowing the chicken to rest before serving.
Whether you're grilling boneless thighs for a quick family dinner or slow-cooking bone-in thighs for a weekend barbecue, these techniques will help you achieve juicy, flavorful results every time.
Once you've mastered the basics, explore related recipes that build on these techniques. Try different marinades, spice rubs, herb blends, and grilled side dishes to create meals that are simple enough for busy weeknights yet impressive enough for entertaining. The more you practice, the more confident you'll become at turning perfectly grilled chicken thighs into one of your go-to meals.
