Pacific Halibut
The largest flatfish in the world, Pacific halibut range across the North Pacific from the Bering Sea and Aleutian Islands south to the waters off central California, with the biggest fish concentrated in the Gulf of Alaska.
Bottom-dwelling and built for the deep continental shelf, they grow slowly to enormous size — fish over 100 pounds are common enough to have their own nickname — and deliver a deep, grinding fight that heavy saltwater gear was made for.
Scientific Name: Hippoglossus stenolepis
Also known as Barn door, Chicken
- Diamond-shaped body, mottled gray to dark brown on top for bottom camouflage, white on the underside — the classic flatfish coloration that makes them nearly invisible on sand or mud.
- Nearly all individuals are right-eyed: both eyes sit on the dark upper side of the body. Left-eyed fish occur at roughly 1 in 20,000.
- Crescent-shaped (lunate) tail sets them apart from most other flatfish, which have rounded or squared tails. Lateral line is strongly arched over the pectoral fin.
- Sport-caught fish typically run 15–60 lbs; females grow far larger than males, and most fish over 30 lbs are female. The IGFA all-tackle record stands at 459 lbs.
What to know
Habitat Distribution
- Native to the North Pacific — from the Bering Sea and Aleutian Islands east and south to the waters off central California, and west to Japan and the Sea of Okhotsk.
- A bottom-dwelling species of the continental shelf, found from shallow inshore areas down to roughly 1,500 feet, though most sport fishing happens in the upper portion of that range.
- Cold-water specialist: core temperature preference runs 37–46°F (3–8°C), which keeps the bulk of the population in subarctic and cold-temperate North Pacific waters.
Specific Spots
- Flat sandy or muddy bottom is the default holding zone — halibut lie in wait where their camouflage works best, often at the base of a drop-off or along the edge of a reef where baitfish funnel through.
- Ridges, underwater points, and the transitions between hard and soft bottom concentrate both forage and halibut, especially during summer feeding months when fish move onto the shelf.
- Depth matters seasonally: summer fish push into shallower shelf water (often 100–400 feet) to feed, while winter finds them in much deeper offshore water for spawning.
Pacific Halibut FAQ
Answers from onWater's species guide.
What are the best lures and bait for Pacific Halibut?
Cut bait is the backbone of halibut fishing across the range. Octopus (whole head or tentacles) is a top choice for its scent and ink trail; herring (live or frozen) and salmon bellies are equally established staples.
What do Pacific Halibut eat?
Primarily fish, cod, pollock, rockfish, sablefish, and other flatfish make up the bulk of the diet for larger individuals. Heavy metal jigs and large cut-bait presentations work because they match the size and profile of these prey species.
Where do Pacific Halibut live?
Native to the North Pacific, from the Bering Sea and Aleutian Islands east and south to the waters off central California, and west to Japan and the Sea of Okhotsk.
See it in the app
Most maps show you water.
onWater shows you Pacific Halibut.
- 01 · Species map filter
Map every Pacific Halibut water
Pick Pacific Halibut and the map zeroes in on the waters they call home. No more guessing which lake holds them.
- 02 · Waterbody species
Tap any water. See what lives there.
Species, behavior and seasonal patterns for every lake, river and pond, before you leave the driveway.
- 03 · Angler Intelligence
Ask how to catch Pacific Halibut
Tactics, gear and timing from onWater's AI fishing guide, tuned to the species and the water you're on.
Stop guessing where Pacific Halibut are.
Open the map, filter by Pacific Halibut, and head to water that holds them. Download onWater and plan your next trip in minutes.
- Species map filter
- Angler Intelligence
- Fishing journal
Explore other species
Trout, bass, salmon, panfish and everything in between. Each guide unpacks the behavior, seasons, and tactics that put fish in the net.
No species information available.
Smarter Fishing Starts in the App.
onWater Fish gives you everything you need to plan smarter, fish better, and own every trip from first cast to last.