How Long to Bake Salmon at 350, 375, 400 and 425°F

By The Recipes by Mom kitchen · Last checked October 21, 2026 · Not kitchen-tested; see how our recipes are made

A salmon fillet that is about 1 inch thick will bake in 12 to 15 minutes in a 400°F (200°C) oven. The time changes with the oven temperature. For example, the same fillet will take 18 to 25 minutes at 350°F (175°C) or 10 to 14 minutes at 425°F (220°C).

The most important factor for baking time is the thickness of the fish, not its weight. The times provided in the reference table apply to salmon fillets that are about 1 inch at their thickest point. A thinner fillet, such as one that is a half-inch thick, will cook much faster, often in 8 to 10 minutes at 400°F (200°C).

How Long to Bake Salmon at 350, 375, 400 and 425°F: time chart

Table source: Typical ranges from standard cooking practice, not an official chart. Ovens, grills and pieces vary: start checking at the low end of each range.

Good to know

• Thickness matters more than weight; check thin tail pieces early
• Leftover salmon keeps 3 to 4 days in the fridge

What changes the baking time

Several factors determine how long salmon takes to bake. Understanding them helps you use the time chart effectively and adjust for your specific piece of fish.

• Oven temperature: A higher temperature cooks the salmon faster. Baking at 425°F (220°C) is quicker than at 350°F (175°C), but it also requires more attention to prevent the fish from drying out.
• Fillet thickness: This is the most critical variable. A thick, center-cut fillet will take longer to cook through than a thinner piece from the tail end. If your fillet has both thick and thin parts, the thinner section will be done first. You can check it early to avoid overcooking.
• Starting temperature: A fillet taken directly from the refrigerator will need more time in the oven than one that has sat at room temperature for a short while before cooking.
• Added toppings: A crust of breadcrumbs or a thick sauce can insulate the fish, potentially increasing the baking time slightly.

How to tell when salmon is done

There are two reliable ways to check if salmon is cooked properly. Using an instant-read thermometer is the most accurate method for food safety.

By temperature: The United States Department of Agriculture (USDA) states that the minimum safe internal temperature for cooked fish is 145°F (63°C). To measure, insert an instant-read thermometer into the thickest part of the fillet, avoiding contact with the pan. Once it reaches 145°F, it is safe to eat and fully cooked.

By appearance and texture: If you do not have a thermometer, you can check for visual signs of doneness. Cooked salmon flesh will be opaque all the way through, with no translucent, raw-looking areas. The flesh should also separate or flake easily when gently pressed with a fork. If the fish resists flaking, it likely needs more time in the oven.

Tips for better baked salmon

A few simple techniques can improve the texture and final result of your baked salmon.

• Even thickness: If possible, choose fillets that have a relatively uniform thickness. This helps the entire piece of fish cook evenly and finish at the same time. If a fillet has a very thin tail, you can fold it underneath the thicker part before baking.
• Pat the fish dry: Before adding any oil or seasonings, pat the surface of the salmon with a paper towel. A dry surface helps the skin get crispier and allows seasonings to adhere better.
• Do not overcook: Salmon can go from properly cooked to dry very quickly because of its lean protein structure. We suggest checking the fish for doneness at the beginning of the time range given in the chart. You can always add another minute or two if needed.
• Storing leftovers: Properly stored leftover salmon can be enjoyed later. Place it in an airtight container in the refrigerator, where it will keep for 3 to 4 days.

Sources and method

• USDA FSIS Safe Minimum Internal Temperature Chart
• Time ranges not marked as USDA are typical ranges from standard cooking practice

Last checked October 21, 2026.