Flank Steak On Grill- How Long? | Timing That Works

For a one-inch flank on hot grates, plan 4–5 minutes per side, then rest and slice thin across the grain.

How Long To Grill Flank Steak For Medium-Rare

Heat the grill to a hot zone and a calmer zone. For a one-inch slab, cook 4–5 minutes per side over direct heat, rotating once for even browning. If the outside moves faster than the center, slide to indirect heat and finish to your number. Rest a few minutes, then carve thin slices across the grain.

The exact clock shifts with thickness, grill type, wind, and sugar in any marinade. Your best guardrail is temperature. Whole beef can be enjoyed at a range of doneness, yet food-safety agencies set a baseline of 145°F with a short rest. See the USDA temperature chart for the official line.

Quick Timing Chart By Thickness

This table assumes lid down on a hot, clean grill, grates oiled, and a one-inch-ish piece placed over direct heat first. Use it as a start point; temperature wins every time.

Thickness	Minutes Per Side	Center Target
3/4 inch	3–4	Warm red to pink
1 inch	4–5	Juicy pink
1 1/4 inch	5–6	Pink to light pink

To nail doneness, use a fast thermometer and correct tip placement. See probe thermometer placement to hit the center, not the grate. That habit removes guesswork when grill heat swings or marinades brown faster than usual.

Setup That Makes Timing Easier

Build a two-zone fire. On charcoal, bank coals to one side; on gas, keep one burner high and one low. Sear over the hot side, then shift to the cooler side if the outside gets ahead. This layout also gives you a parking spot for saucing without scorching.

Clean grates with a safe tool, then oil using tongs and a folded paper towel. Water on the surface steams and slows browning, so pat the meat dry. Salt right before it hits the heat if you skipped a marinade. If you did marinate, wipe off puddled sugars to avoid bitter char.

Carryover matters. Once you pull the steak from the grill, the internal number can rise several degrees while it rests on the board. Keep that in mind when picking a pull temperature, especially if you like a pink center.

What Temperature Should You Target?

Many cooks slide off the grill a few degrees shy of the final number they want, then let carryover close the gap. Those who want the government line aim for 145°F plus a short rest. If you prefer a redder center, that’s a style choice; still slice thin across the grain and serve hot.

Food-safety guidance is clear: measure the center, not the surface; hold the probe still; and give the reading a second to settle. You can find the official chart again at FoodSafety.gov’s safe temperatures.

Step-By-Step Timing For A Standard Piece

Before The Grill

• Trim straggly silver skin so the slab lays flat.
• Pat dry. Season with salt and pepper. A splash of oil helps browning.
• If marinating, keep it short—30 minutes to 2 hours brings flavor without mushy edges.

On The Grill

1. Preheat hot and steady. You should see heat shimmer above the grates.
2. Place the steak over direct heat at a slight angle to the bars.
3. After 2 minutes, rotate 90° for crosshatch if you like.
4. At the 4-minute mark, flip. Repeat the rotation once on side two.
5. Check temperature in the thickest spot. If it’s lagging, shift to indirect and cover for a minute or two.
6. Pull when it matches your target pull temp, then rest on a board.

Slice For Tender Bites

Place the slab with the long lines of muscle running left to right. Turn your knife so cuts are across those lines. Thin slices keep each bite soft and juicy. A light sauce or a squeeze of citrus right before serving brightens the plate without making the surface soggy.

Flavor Tweaks That Don’t Throw Off Timing

Marinade Ideas

Use a blend that balances salt, acid, and fat. Think soy or Worcestershire, a touch of vinegar or citrus, and oil. Garlic, scallion, ginger, and black pepper play well with the beefy taste. Keep sugar modest to avoid scorching during the sear.

Dry Rub Route

Salt, coarse pepper, paprika, onion powder, and a dash of cumin bring a classic profile. Rubs are handy when you want speed: no rinse, no extra bowls, and no need to plan hours ahead.

Sauces That Fit

Chimichurri, salsa verde, or a simple pan sauce from the resting juices all shine here. If you glaze, brush near the end over indirect heat so the sugars don’t burn.

Common Timing Mistakes And Easy Fixes

Outside Burns Before The Center Warms

Flip sooner and finish over the cool zone. Close the lid for a minute to help heat penetrate. If you used a sweet marinade, wipe the next batch drier before it hits the fire.

Tough Chew Even When Pink

Slice thinner across the grain. A sharper knife helps. A short marinade with soy, a splash of acid, and oil loosens texture without long waits.

Uneven Thickness

Pound the thicker end gently under plastic wrap to even it out, or treat the piece like two zones—start the thick end closer to the hot side.

When To Pull From The Grill

These ranges show common pull points and where they usually settle after a short rest on a board. Pick the column that fits your preference and watch the number, not the clock.

Doneness	Pull From Grill	Settles Around
Red Center	120–125°F	125–130°F
Pink Center	130–135°F	135–140°F
Light Pink	140–145°F	145–150°F*

*145°F with a short rest lines up with the USDA doneness baseline for whole beef. Safety rules differ for ground meat; burgers need 160°F.

Gear That Helps You Hit The Number

Thermometer

An instant-read model removes guesswork. Insert through the side at an angle toward the center. Keep the tip away from the grate or fatty pockets for a true reading.

Grill Setup

Two-zone heat gives you a plan B if flare-ups surge or sugar darkens early. It also helps if wind cools one side of the grill. On a small gas grill, even a medium-low burner can act as your cool zone.

Tools

Long tongs, a stiff brush, and heat-safe gloves keep hands away from flare-ups. A small sheet pan makes a good landing pad when you move from grill to board.

Notes Worth Keeping

Thin cuts don’t keep heat long. Serve soon after slicing so the center stays warm and juicy. Leftovers shine in tacos or salads; slice cold and dress right before eating.

Want a deeper look at doneness for different cuts? Try our grilling meat doneness levels.