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Grilled Swordfish Steak with Lemon-Dill Aioli Sauce

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Grilled swordfish is easy to make and incredibly delicious. It has a mild, yet slightly sweet flavor that pairs well with lots of sides. Since swordfish has a firm, meaty texture, it is great for grilling. And the best part? You don’t have to be a professional chef to make it happen.

Get that grill hot and ready, and prepare yourself for a treat!

A grilled swordfish on plate with rice, green beans, and a grilled lemon.

Simple Grilled Swordfish

This is an easy recipe that takes just a few minutes to prepare and a few minutes on the grill. Just a basic seasoning lets the flavor of the fish shine. But if you want to make a quick marinade, we have some options in this cooking guide. Just make sure you don’t let it marinate to long or the acids in the marinade will break the meat down and give it a mushy flavor.

Choosing Your Swordfish Steak

When choosing swordfish steak, there are a few things to keep an eye out for. First, the color of the meat should be bright, pinkish-white, and have a fresh, clean smell.
Avoid fish that looks too dry, or has a strong fishy odor. As for the question of fresh versus frozen, both can work quite well. Don’t worry if you can’t find fresh fish. Most of it gets a flash freeze on the fishing boat to stay fresh.

Swordfish is one of the few fish that can be cut into steaks and this is the perfect weather for grilling it in the backyard.   This is a nice mild-flavored, firm-fleshed fish with a texture similar to Ahi tuna, or Mahi-Mahi although quite different in taste.

When buying swordfish steaks look for American swordfish and not imported.   Our swordfish comes from the waters of the Pacific….specifically from Hawaii.  

Two uncooked swordfish fillets.
uncooked swordfish steak

How to Grill Swordfish Steak

Here is a brief overview to get an idea of what to expect with the recipe for grilled swordfish steak. Scroll down to the printable recipe card for all the details.

Read our options below if you want to make a marinade before grilling the fish.

  1. Prepare your grill and let it heat up for about 15 minutes until it reaches a temperature of 500°F.
  2. Brush the swordfish steak on both sides with oil and season generously with salt.
  3. Grill the swordfish steaks over high heat, as close to the heat as possible.
Four swordfish filets on a grill.

Optional Marinade for Swordfish

If you want to marinate the fish before grilling, here are a few ideas for marinades. Just make sure you don’t let the swordfish soak in the marinade for more than 10 to 15 minutes (thinner cuts should have less).

Mediterranean Marinade: 3/4 cup olive oil, 1/2 cup red wine vinegar, 2 cloves minced garlic, salt, pepper, 1 to 2 tablespoons of dried herbs (use a combination of basil, oregano, sage, thyme, and rosemary).

Asian-Inspired Marinade: 1/3 cup soy sauce, 1/4 cup rice vinegar, 3 tablespoons sesame oil, 1 tablespoon grated fresh ginger, 2 cloves minced garlic, 1 teaspoon chili flakes (optional)

Garlic Lemon Marinade: Juice and zest of 2 lemons, 3/4 cup of olive oil, 4 minced garlic cloves, fresh chopped dill, salt and pepper.

Squeezing a grilled lemon over fish.
Swordfish steak on a hot grill

Tips for a Perfect Swordfish Steak Recipe:

  • Since swordfish has such a firm flesh, it doesn’t fall apart when it is flipped over on the grill and it holds up to the heat long enough to get those nice grill marks without over-cooking.
  • You can cook this steak on an indoor grill just as successfully as an outdoor grill. This makes a great year-round recipe. 
  • Brush the grill or outdoor grate with oil before cooking the swordfish. That will prevent the fish from sticking to the grill.
  • Don’t overcook the swordfish, or it will become dry. If you’re not certain about how ‘done’ the fish is, then check the internal temperature with an instant-read thermometer. The internal temperature should be 145°F per the USDA. I personally like to cook it to 135°F so it has a tender, buttery texture.

Lemon dill aioli sauce used for fish.
Lemon-Dill Aioli Sauce for Grilled Swordfish Steak

You will love how moist and delicious this swordfish is and our make-ahead  Lemon-Dill Aioli Sauce is a perfect accompaniment for this steak!  

Click on the link above  to get the recipe for the perfect accompaniment to this grilled swordfish steak.

More Grilling Recipes

More Great Recipes:

Our Miso Glazed Sablefish is an elevated meal that is perfect for date night or fancy dinner parties, and our Steamed Mussels are quicker to make but versatile enough for casual dinners or as a starter to a formal gathering.

Grilled Mahi-Mahi gets served with sweet and tangy mango salsa. Like swordfish, it is perfect for the grill and it is fast and easy.

Our rockfish recipe and our fish tacos are a must-try for any fish lover. They are fast and easy dinners that you can make any time of the year.

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Grilled swordfish on a white plate.

Grilled Swordfish Steak with Lemon-Dill Aioli Sauce

Yield: 2 servings
Prep Time: 2 minutes
Active Time: 7 minutes
Total Time: 9 minutes

Swordfish steak, grilled to perfection and served with a Lemon-Dill Aioli Sauce.


  • 1 Swordfish steak, weighing about 1 pound and cut at least 1- inch thick
  • 1 tablespoon olive oil
  • Kosher salt
  • Lemon Dill Aioli Sauce


  1. Prepare your grill and let it heat up for about 15 minutes until it reaches a temperature of 500°F. If you are using a pellet grill, we recommend using Alder, Apple, or Maple pellets.
  2. Brush the swordfish steak on both sides with oil and season generously with salt.
  3. Grill the swordfish steaks over high heat, as close to the heat as possible, turning once after 5 minutes, getting good grill marks. Flip the steak over and grill the other side for another 2-3 minutes. Transfer the fish to a platter and divide in half. Serve with Lemon-Dill Aioli sauce. Serves 2
Nutrition Information:
Yield: 2 Serving Size: 1
Amount Per Serving: Calories: 200Total Fat: 16gSaturated Fat: 3gTrans Fat: 0gUnsaturated Fat: 13gCholesterol: 50mgSodium: 364mgCarbohydrates: 0gFiber: 0gSugar: 0gProtein: 13g

Nutrition information is a guideline only, is calculated automatically by third party software, and absolute accuracy is not guaranteed.

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Grilled Swordfish Steak with Lemon-Dill Aioli Sauce.
Grilled swordfish with lemon dill aioli sauce

Pat Nyswonger

Pat is a wife, mom of four adult children, and grandmother to seventeen beautiful children. She is a self-taught home cook and loves creating delicious meals for her family and friends. Her kitchen is the hub of activity in her home, and she loves to entertain.

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Nicole Shillings

Monday 2nd of October 2017

Mmmm! I love swordfish. Growing up Cali, we ate it fresh at least once a week. It's harder to find here in Georgia, but I do find some frozen steaks now and then. I'll have to try this!


Monday 2nd of October 2017

Thanks, Nicole...swordfish is one of my favorites, along with salmon. The lemon-dill aioli sauce works so well with both. :)

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