Flank Steak Grill Time

Use this page for a quick flank-steak timing check and the variables that change it. For marinade choices, the full cooking process, pro tips and slicing directions, follow the complete flank-steak guide.

Plan When to Check Flank Steak

Food-safety reference: USDA recommends whole beef steaks reach at least 145°F before removal from heat, followed by at least a 3-minute rest. Culinary preferences below that temperature are below this recommendation. Follow the package directions for mechanically tenderized or otherwise processed beef; color and an assumed carryover rise do not establish safety.

A 3/4- to 1-inch flank steak often takes roughly 6–12 minutes over a fully preheated 450–500°F cooking zone, but shape and heat change the result. Begin checking early, especially at the thin end. Treat time as a planning estimate, not a doneness test.

In this guide, we’ll break down exactly how long to grill a flank steak, why getting the temperature just right is critical, and the steps you need to follow for juicy, tender results every time.

From properly marinating the meat to slicing it the right way after grilling, we’re covering everything you need to know to turn out a steak that’s a crowd-pleaser. With years of expertise in grilling, we’re here to make sure your next cookout is a big win.

What this article covers:

• How Long Should You Grill a Flank Steak?
• How to Grill a Flank Steak
• Pro tips

How Long Should You Grill a Flank Steak?

For a 3/4- to 1-inch flank steak over a preheated 450–500°F zone, roughly 6–12 minutes can be a planning range. Check the thickest section and thin end separately; the actual time can fall outside that estimate.

Here’s the key: hot and fast is the name of the game. Too low and slow, and you’ll end up with a rubbery texture. Trust us, we've had our share of "learning experiences" before mastering the craft!

Want to learn more about steak grill times? Be sure to check out our guide on ribeye steak grill time as well.

How to Grill a Flank Steak

Now that you know the time, let's talk about how when it comes to cooking a flank steak on a grill:

Step 1: Marinate

After years of grilling, we can confidently say: the right seasoning makes all the difference. Flank steak is naturally lean and benefits from bold, flavorful accents that enhance, not overpower, the meat.

Seasoning choice affects flavor and surface browning, not the safe internal-temperature recommendation. A sugary coating can darken early, so apply it late and keep watching the steak.

Step 2: Preheat Your Grill

As we’ve learned, your grill needs to be extremely hot — 400°F to 450°F — before you even think about laying down your steak. A properly preheated grill means a gorgeous sear and a juicy inside.

Step 3: Pat Dry And Season

After marinating, remove the steak and pat it dry with paper towels. This step is crucial because a wet steak steams instead of searing. Season liberally with salt, pepper, and one of our BBQ rubs. Simple, but incredibly effective — no need to overthink it!

Step 4: Grill

Turn for even browning and start checking early. Move browned areas away from the strongest heat while thicker sections finish.

Check the internal temperature with a thermometer. Aim for 130°F for medium rare. But remember: it will continue to cook after you pull it off the heat.

Step 5: Rest And Relax

After grilling, let your steak rest on a cutting board for at least 5 to 10 minutes. Resting lets the juices redistribute, resulting in every bite being juicy and flavorful.

Step 6: Slice Against the Grain

Flank steak has long muscle fibers. Slice across those fibers, not with them, for maximum tenderness. It makes all the difference, trust us!

Pro Tips for Timing Flank Steak

• Time the thickest area. Compare the thick and thin ends before cooking; place the thicker end toward stronger heat and check the thin end earlier.
• Probe horizontally. Insert a FireBoard Spark instant-read thermometer through the side so its sensing area reaches the center rather than the hot surface.
• Plan slicing before you start. Identify the direction of the muscle fibers while the steak is raw, then cut thinly across them after the rest; extra cooking time cannot fix slices cut with the grain.

Conclusion

Grilling a perfect flank steak comes down to a few simple but important steps: knowing the right flank steak grill time, getting your grill properly heated, seasoning with high-quality rubs and sauces, and slicing against the grain after a good rest.

In our experience, keeping the process hot and fast is the secret to juicy, tender steak that delivers big flavor every time. Whether you're firing up the grill for a casual dinner or a weekend cookout, following these tips will set you up for success.

For the best results, make sure to stock up on premium BBQ rubs and sauces from DDR BBQ Supply — your taste buds will thank you.

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