Fly Fishing Illinois: Kankakee and Fox River Smallmouth, Driftless Trout, Seasons and Tips
Location Details / Illinois
Fly Fishing Illinois: Kankakee and Fox River Smallmouth, Driftless Trout, Seasons and Tips
Illinois fly fishing is a smallmouth story first. The Illinois Department of Natural Resources (IDNR) calls the Kankakee one of the state's best smallmouth rivers and the Fox, from Algonquin to Oswego, one of the region's best. Trout are stocked, put-and-take fish, led by the Apple River in the Driftless northwest corner.
We'll be straight with you: the Fly Fishing Insider Podcast archive has no Illinois guide, and no episode works through the Kankakee, the Fox or the Apple River by name. The closest voice we have is Keith Webster, the Chicago-based design engineer behind Tornado Anchors, on Episode 119, published May 18, 2021.
Webster told host Greg Keenan that Chicago isn't known as an outdoor town, yet he spends his summers chasing smallmouth on local rivers in and around the city. For trout, he drives about three hours to technical spring creeks in southwest Wisconsin's Driftless, and he chases western Michigan steelhead through the winter. That is an honest map of how a Chicago angler fishes. He didn't name his rivers, so the waters below are IDNR's picks, not his.
Top species
Smallmouth bass; walleye; northern pike; muskie; stocked rainbow trout
Best months
Smallmouth in spring and fall; Fox River wading mid-June to mid-October; stocked trout from April and from late October
Top waters
Kankakee River, Fox River, Apple River, Rock Creek, Waddams Creek
License and regs
IDNR 2026 fishing guide: a fishing license, plus a $6.50 Inland Trout Stamp for trout; valid through March 31, 2027
Nearest airports
Chicago O'Hare (ORD) and Midway (MDW) for the Fox and Kankakee; Chicago Rockford (RFD) for the Apple River
Rule to know
In most Illinois rivers and streams, including the Kankakee and Fox, all smallmouth must be released immediately from April 1 to June 15
Where to Fly Fish in Illinois
Kankakee River
The Kankakee flows 59 miles in Illinois, from the Momence wetlands to the Des Plaines River confluence that forms the Illinois River. Below the city of Kankakee the gradient picks up over bedrock and cobble through Kankakee River State Park, which offers eleven miles of river access.
IDNR's 2021 fact sheet names Momence and the state park as the smallmouth hot spots, with fall electrofishing surveys turning up 94 to 176 smallmouth an hour, and 15 to 20 an hour at 14 inches or better. Those are agency sampling numbers, not angler catch rates, but they tell you how many fish live here. IDNR points anglers to riffles, creek mouths and fast water below dams, with the best action in early spring and fall. You can wade or fish from a canoe; IDNR warns of sharp drop-offs and deep holes.
From the Kankakee Dam to the Wilmington Dam, smallmouth carry a protected slot: no possession from 12 to under 18 inches. Rock Creek, inside the state park, is also on IDNR's stocked trout list.
Fox River
The Fox runs 115 miles in Illinois, from the Wisconsin line to the Illinois River at Ottawa, with 13 dams along the way. IDNR's 2021 fact sheet calls the middle section, from Algonquin Dam down to Oswego, one of the region's best smallmouth fisheries. Its sampling averaged 60 smallmouth an hour in summer, 7 an hour at 14 inches or better, and up to 150 an hour in fall. The largest fish measured 19.6 inches.
Below Algonquin the river turns shallow, and IDNR says kayaks, canoes and wading are the best way in. Sheridan to Wedron is a popular float past sandstone bluffs. An IDNR angler's guide from 2006 says to target tributary mouths, deep holes, bridge piers and spots where fast water meets slack pools. It also says never to wade immediately above or below a dam, and warns that low clarity hides boulders and scour holes.
Illinois Driftless Streams: Apple River and Waddams Creek
IDNR places Apple River Canyon, in Jo Daviess County near the Wisconsin border, inside its Wisconsin Driftless Natural Division. The Apple River is the only Jo Daviess County stream on IDNR's 2026 spring trout list.
Set your expectations here. IDNR says the river is cold and clear enough for trout in spring, but the fish don't last through the hot summer, so this is stocked, put-and-take water. The park list also includes smallmouth, sunfish, crappie, carp and suckers. Inside the park, smallmouth are catch and release only, and boating isn't permitted on the river.
Waddams Creek, at Lake Le-Aqua-Na State Park in neighboring Stephenson County, is also on the 2026 spring list. We couldn't confirm that IDNR places it in the Driftless division, so treat it as a nearby stocked stream. For wild spring creeks, do what Webster does and head to Wisconsin.
When to Go Fly Fishing in Illinois
Treat this table as general guidance. The trout dates come from IDNR rules, the smallmouth peaks from IDNR's river profiles, and the shading is our own reading, not hatch data.
| Target | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kankakee smallmouth | ||||||||||||
| Fox smallmouth | ||||||||||||
| Stocked trout streams |
Intensity:LightModerateHeavy
Blank cells mean not worth planning around. Remember that April 1 to June 15 is release-only for smallmouth on these rivers.
Book a Local Pro in Illinois
Guide or lodge in Illinois? Get listed. No FFIP Certified guide, lodge or outfitter is in Illinois yet. Put your business in front of anglers planning Kankakee, Fox and Apple River trips.
Market Your ServicesBrowse every FFIP Certified pro in the guides and lodges directory.
Custom Flies and Rods from Illinois
Three Illinois fly tyers appear in our Custom Fly Tyer Directory, listed here by name only:
- Field Edge Fishing (Brian Farrell): Woolly Buggers, Clouser Minnows, jigs, leeches and egg patterns for trout, steelhead and bass, with custom orders
- Big Daves Flies: streamers and steelhead flies for steelhead and trout
- LittleEgyptFlyCo: freshwater flies
No Illinois builder is in our Custom Fly Rod Builder Directory yet. Tie flies or build rods in Illinois? Get listed with FFIP.
Illinois Tips from Podcast Guests
None of these guests fish Illinois on the record. These are transferable tips from neighboring water, picked for smallmouth rivers and clear, stocked streams.
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Use sink-tip lines, not full-sinking lines, in river current
A smallmouth guide on rivers near Milwaukee, Wisconsin -
Move flies from topwater to deep through the day
A smallmouth guide on rivers near Milwaukee, Wisconsin -
Bounce and strip your line to keep streamers in the strike zone
Alan Campbell, Michigan smallmouth bass and pike guide, on Michigan Fly Fishing for Smallies and Pike -
Approach spring creek pools from downstream, bottom to top
Mel Hayner, Minnesota Driftless guide and shop owner, on Driftless Region History and Spring Creek Stealth Approach Tactics -
Let a missed cast drift back instead of ripping it out
Mel Hayner, on the same episode
Want more? Browse every tip in the Fly Fishing Tips Library, sorted by region, water type, species and skill.
Hear Illinois on the Podcast
Episode 119: Keith Webster, Tornado Anchors: Chicago smallmouth summers, and the anchor he sketched out on a five-hour drive home from Michigan. Listen to the audio episode or read the episode notes.
Driftless Region History and Spring Creek Stealth, Mel Hayner: how the unglaciated Driftless formed; our notes place a sliver of it in Illinois. Read the episode notes.
Shop the Water: Flies and Gear for Illinois
Clouser Minnow Freshwater Assortment
Olive Black Woolly Bugger, Size 8
Flashtail Bass Popper, Chartreuse
Natural Deer Hair Bass Popper, Size 8
Kaufmann's Black Stonefly Assortment
Pheasant Tail Assortment, Sizes 14-18
Gold Ribbed Hare's Ear, Size 14
Interchangeable Sink Tips
Illinois Fly Fishing Questions, Answered
Do you need a license to fly fish in Illinois?
Yes. IDNR's 2026 guide lists the resident annual license at $15.00, nonresident annual at $31.50, nonresident 3-day at $15.50 and nonresident 24-hour at $10.50. Fees are subject to change and a transaction fee may apply. Anglers under 16 don't need one. Buy online through IDNR.
Do you need a trout stamp in Illinois?
Yes, for trout outside Lake Michigan. The Inland Trout Stamp costs $6.50, and IDNR's 2026 spring notice says every angler needs it on top of a license, even when releasing trout. The daily limit is five. You can't possess trout caught at stocked sites from March 15 until 5 a.m. on the first Saturday in April, or from October 1 until 5 a.m. on the third Saturday in October.
Can you keep smallmouth bass on the Kankakee and Fox rivers?
Not in spring: April 1 to June 15, smallmouth must go back immediately. After that, the Fox below Algonquin Dam allows three a day, with no more than one at 12 inches or better. From Kankakee Dam to Wilmington Dam, the Kankakee protects fish from 12 to under 18 inches and allows three a day, no more than one of them 18 inches or better.
Is the Kankakee or the Fox River better for smallmouth on the fly?
IDNR rates both highly, and they fish differently. The Kankakee is a clear, shallow stream, with bedrock and cobble through Kankakee River State Park. The Fox's best stretch runs through a highly urbanized corridor with many dams and lower clarity. The Kankakee suits a state park day; the Fox suits anglers who want access close to the city.
Are there wild trout streams in the Illinois Driftless?
We couldn't verify one. IDNR describes the Apple River as stocked, put-and-take water where trout don't last through summer, though its conservation plan for the river cites interest in brook trout restoration across the Driftless. For wild Driftless trout, Chicago anglers like Keith Webster drive about three hours to southwest Wisconsin.
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Tight lines, everyone!
By Christian Bacasa, host of the Fly Fishing Insider Podcast. Last reviewed November 2026.
Prices, availability, flight routing and entry requirements change. Every figure on this page is the starting rate published by the lodge or by Frontiers International Travel at the time of writing, per angler, and is a starting point for a quote, not a quote. Seasons, lodge capacity, charter schedules, visa and passport rules and license requirements can all change without notice. Confirm current pricing, availability and entry requirements with your Frontiers specialist before you book anything.
License fees and fishing rules on this page come from IDNR's 2026 Illinois Fishing Information guide. Confirm them with IDNR before you fish.