How far is Flagg, IL from Rockford, IL?
The driving distance from Flagg, IL to Rockford, IL is about 31.9 miles (51.4 km), with a travel time of about 00h 48m by car.
- The straight-line flight distance is about 26 miles (41.9 km).
- For a round trip, plan for roughly 01h 37m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 00h 48m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Illinois, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Patchy Frost then Chance Rain Showers
Areas Of Frost then Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Flagg and Rockford.
Turn-by-Turn Driving Directions
Step-by-step road directions between Flagg and Rockford.
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1
Start on East Titus Road
19 m · 5 sec · East Titus Road
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2
Turn right onto South Grange Road
1.1 mi · 4 min · South Grange Road
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3
Turn right onto Lincoln Avenue
4.1 mi · 7 min · Lincoln Avenue
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4
Turn left onto North 6th Street
120 m · 12 sec · North 6th Street
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5
Turn left onto 4th Avenue
83 m · 5 sec · 4th Avenue
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6
Turn right onto North 7th Street
20.8 mi · 30 min · North 7th Street
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7
Take the ramp slight right toward US 20 West: Freeport
1277 ft · 31 sec
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8
Merge slight left onto U.S. Grant Memorial Highway
1.6 mi · 2 min · U.S. Grant Memorial Highway
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9
Take the exit slight right toward IL 2: Rockford, Dixon
1810 ft · 44 sec
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10
Keep slight right
86 m · 7 sec
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11
Turn straight onto South Main Street
3.7 mi · 6 min · South Main Street
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12
Turn right onto West State Street
45 m · 4 sec · West State Street
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13
Arrive at your destination
0 m · 1 sec · West State Street
Car Route Details
A richer read on the saved driving route between Flagg and Rockford.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
North 7th Street
Turn right onto North 7th Street
20.8 mi · 00h 30m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Patchy Frost then Chance Rain Showers leaving Flagg and Areas Of Frost then Chance Rain Showers near Rockford.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Flagg to Rockford?
The road trip is about 31.9 miles (51.4 km) and usually takes 00h 48m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Davis Junction is a useful midpoint, sitting about 16 miles from Flagg and 15.9 miles from Rockford.
How much longer is the road route than the straight-line distance?
The direct path is about 26 miles (41.9 km), while the road route adds roughly 5.9 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 4:52 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.26 one way or $8.52 round trip. Estimated CO2 is about 10 kg one way.
What should you check before leaving?
Before you leave, expect Patchy Frost then Chance Rain Showers around Flagg and Areas Of Frost then Chance Rain Showers near Rockford.
Stop Ideas Near Davis Junction
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Davis Junction.
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Flight Path Map
This map shows the direct air route between Flagg and Rockford. Straight-line distance: 26.04 mi (41.91 km).
#1 Flagg
City in Illinois, United States of America
| Population | 12,745 |
| Coordinates | 41.8958600, -89.1409300 |
| Altitude | 238 |
| Country | United States |
#2 Rockford
The second most populous city in Illinois.
| Population | 144,835 |
| Coordinates | 42.2711300, -89.0940000 |
| Altitude | 218 |
| Country | United States |
End: West State Street (-89.094046, 42.271066)
Estimated Travel Time
Distance: 51 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 03m |
| 40 mph (64.37 km/h) | 00h 47m |
| 50 mph (80.47 km/h) | 00h 38m |
| 60 mph (96.56 km/h) | 00h 31m |
| 70 mph (112.65 km/h) | 00h 27m |
| 80 mph (129 km/h) | 00h 23m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $4.26 | $8.52 |
| Mid-grade | $4.25 | $4.81 | $9.61 |
| Premium | $4.65 | $5.26 | $10.52 |
| Diesel | $5.30 | $5.99 | $11.99 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Illinois · May 07, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.