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Air Fryer Fish Sandwich

by Karly

Our AIR FRYER FISH SANDWICH is crispy outside, tender inside, and loaded with tartar sauce and pickles. We used flounder, but you can use almost any white fish for a great sandwich!

A close up of a fish sandwich in front of a bowl of tartar sauce

Fish sandwiches are a total thing right? You either love them or hate them.

I am in camp love them! When paired with a good tartar sauce and a sweet bun they are so dang good!

The air fryer is a great way to cook your fish fillets and can make that crispy fish sandwich so quickly!

Crispy breading, tender and moist fish, loads of pickles, plenty of tartar sauce, all sandwiched betweeen a soft bun. Who else is ready for lunch??

A fish sandwich with several fillets on the bun

Ingredients for the fish:

Flounder – Any firm white fish will work well here.

Buttermilk – No buttermilk? Make your own by stirring together 1/2 cup of milk and a tablespoon of vinegar. Let sit for 5 minutes to thicken up.

Panko Breadcrumbs – Panko is a Japanese breadcrumb that is light, airy, and so crispy!

Old Bay Seasoning


Paprika – We love smoked paprika, but regular will also work just fine.

Brioche Buns

fish sandwich ingredients

Ingredients for the tartar sauce:


Sweet Relish


Dijon Mustard

Lemon Juice

Ground Black Pepper

tartar sauce ingredients

How to make a homemade tartar sauce:

You should make the tartar sauce before cooking the fish! Store it in the fridge to chill before adding to your sandwich.

Start by mincing your capers. You will need two teaspoons when all is said and done.

Then add the capers to a small bowl with mayo (not miracle whip, please), sweet relish, Dijon mustard, lemon juice, salt and pepper.

Stir to combine and store covered in the fridge until ready to serve.

a person holding up a fish sandwich with tartar sauce

How to make the fish:

Cut your fish fillets into roughly four ounce pieces.

Get a couple shallow dishes and pour buttermilk into one. Add panko, old bay seasoning, salt, and paprika to the other.

Dip each fillet into the buttermilk, then the panko mix. Flip the fillet and be sure to coat all sides.

breaded fish filet in an air fryer basket next to buns

Brush your air fryer basket with oil or spritz some oil on the basket with a pump spray bottle.

Place your fillets in the air fryer basket spread out so that they don’t touch. Spritz the fillets with oil and cook for 5 minutes.

Flip the fillets and cook for an additional 3-5 minutes until the fillets are crispy and golden in color.

Add to the bun, and top with your favorite toppings.

a breaded fish fillet in an air fryer basket


We’re partial to a soft, buttery brioche bun, but any type of bun you like will work great!

Swap out the flounder for cod, halibut, or haddock, if you like. My husband loves to fish, so we’ve used fresh caught bass as well!

More air fried recipes you might like:

Giant fish sandwich with layerd fillets on a white plate
A fish sandwich with several fillets on the bun

Air Fryer Fish Sandiwch

Yield: 4
Prep Time: 10 minutes
Cook Time: 10 minutes
Total Time: 20 minutes

These crispy fried flounder fillets are served on a brioche bun with a homemade tartar sauce.


For the Fish Sandwich:

  • 16-ounces flounder, fresh or thawed
  • ½ cup buttermilk
  • 1 cup panko breadcrumbs
  • 1 teaspoon old bay seasoning
  • 1 teaspoon salt
  • ½ teaspoon paprika
  • Brioche Buns

For the Tartar Sauce:

  • ½ cup mayonnaise
  • 2 teaspoons sweet relish
  • 2 teaspoons capers, minced
  • 1 teaspoon Dijon mustard
  • 1 teaspoon lemon juice
  • 1/8 teaspoon salt
  • 1/8 teaspoon ground black pepper


  1. Prepare the tartar sauce by combining all of the ingredients in a small bowl. Cover and chill in the fridge until ready to put on the sandwiches.
  2. Preheat the air fryer to 350 degrees Fahrenheit. Brush the basket with oil.
  3. Prepare the fish fillets by cutting them into 4-ounce pieces a bit larger than your bun.
  4. Pour the buttermilk into a shallow dish.
  5. In a separate shallow bowl, combine the panko breadcrumbs, old bay seasoning, salt, and paprika.
  6. Dip each fillet into the buttermilk and then into the breadcrumb mix, flipping to coat each side.
  7. Place the fillets into the air fryer basket, spritz with oil, and cook for 4-5 minutes.
  8. Flip the fillet and cook for an additional 4-5 minutes, or until they are crispy and golden.
  9. Assemble the fish sandwiches by spreading the desired amount of tartar sauce on one of the brioche buns, place the fish on top, followed by your desired toppings, and the other half of the bun.


You can use store bought tartar sauce or any other condiments you want. We just love our homemade sauce.

The fish can be substituted for any white fish.

We like to top our sandwiches with loads of pickles, but lettuce and tomato are also delicious.

Nutrition Information:
Yield: 4 Serving Size: 1
Amount Per Serving: Calories: 481Total Fat: 29gSaturated Fat: 6gTrans Fat: 0gUnsaturated Fat: 20gCholesterol: 105mgSodium: 1755mgCarbohydrates: 31gFiber: 2gSugar: 6gProtein: 24g

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