How far is Joliet, IL from Byron, IL?
The driving distance from Joliet, IL to Byron, IL is about 90.2 miles (145.2 km), with a travel time of about 02h 05m by car.
- The straight-line flight distance is about 73.3 miles (117.9 km).
- For a round trip, plan for roughly 04h 10m 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 02h 05m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Township in DeKalb County, Illinois
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Partly Sunny
Driving Route Map
The map below follows the saved road route between Joliet and Byron.
Turn-by-Turn Driving Directions
Step-by-step road directions between Joliet and Byron.
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1
Start on the route
83 m · 22 sec
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2
At the end of the road, turn right onto Joliet Street
864 ft · 35 sec · Joliet Street
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3
Turn left onto Cass Street
667 ft · 19 sec · Cass Street
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4
Continue on Western Avenue
1227 ft · 40 sec · Western Avenue
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5
Turn right onto North Center Street
1400 ft · 40 sec · North Center Street
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6
Continue on Plainfield Road
5.2 mi · 11 min · Plainfield Road
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7
Continue on Joliet Road
2.5 mi · 5 min · Joliet Road
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8
Turn slight right onto North Division Street
1.2 mi · 3 min · North Division Street
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9
Turn left onto 143rd Street
1.6 km · 2 min · 143rd Street
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10
Turn right onto Lincoln Highway
7.5 mi · 11 min · Lincoln Highway
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11
Continue on Hill Avenue
2.4 mi · 4 min · Hill Avenue
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12
Continue on East Galena Boulevard
612 ft · 21 sec · East Galena Boulevard
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13
Turn right onto North Ohio Street
741 ft · 21 sec · North Ohio Street
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14
Turn left onto East New York Street
1.5 mi · 2 min · East New York Street
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15
Turn right onto North Lake Street
2.1 mi · 4 min · North Lake Street
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16
Continue on South Lincolnway Street
1885 ft · 39 sec · South Lincolnway Street
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17
Take the ramp left toward I 88 West Toll, IL 56 West Toll: Chicago, Dekalb-Iowa
118 m · 10 sec
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18
Keep slight left to continue on I 88 West, IL 56 West: DeKalb-Iowa
3054 ft · 1 min
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19
Merge slight left onto Ronald Reagan Memorial Tollway
2.8 mi · 3 min · Ronald Reagan Memorial Tollway
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20
Keep slight left to continue on Ronald Reagan Memorial Tollway
34.8 mi · 37 min · Ronald Reagan Memorial Tollway
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21
Take the exit slight right toward I 39 North, US 51 North: Rockford
1.1 km · 1 min
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22
Merge slight left
13.2 mi · 14 min
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23
Take the exit slight right toward IL 72: Genoa, Byron
2120 ft · 54 sec
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24
Turn right
12.3 mi · 18 min
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25
Turn slight right
2761 ft · 1 min
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26
Turn right
40 m · 12 sec
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27
Turn right
27 m · 6 sec
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28
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Joliet and Byron.
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.
Ronald Reagan Memorial Tollway
Keep slight left to continue on Ronald Reagan Memorial Tollway
34.8 mi · 00h 37m
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.
Mostly Sunny leaving Joliet and Partly Sunny near Byron.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Joliet to Byron?
The road trip is about 90.2 miles (145.2 km) and usually takes 02h 05m 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?
Cortland is a useful midpoint, sitting about 45 miles from Joliet and 45.2 miles from Byron.
How much longer is the road route than the straight-line distance?
The direct path is about 73.3 miles (117.9 km), while the road route adds roughly 16.9 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 2:20 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $11.99 one way or $23.98 round trip. Estimated CO2 is about 28.3 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Joliet and Partly Sunny near Byron.
Stop Ideas Near Cortland
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 Cortland.
Plano
Rockford, Illinois
Naperville
Mendota station
Flight Path Map
This map shows the direct air route between Joliet and Byron. Straight-line distance: 73.29 mi (117.95 km).
#1 Joliet
The second most populous city in Will County, Illinois.
| Population | 85,583 |
| Coordinates | 41.5251900, -88.0834000 |
| Altitude | 165 |
| Country | United States |
#2 Byron
City in Ogle County, Illinois, United States
| Population | 3,650 |
| Coordinates | 42.1269700, -89.2556600 |
| Altitude | 222 |
| Country | United States |
End: Byron (-89.25566, 42.12697)
Estimated Travel Time
Distance: 145 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 00m |
| 40 mph (64.37 km/h) | 02h 15m |
| 50 mph (80.47 km/h) | 01h 48m |
| 60 mph (96.56 km/h) | 01h 30m |
| 70 mph (112.65 km/h) | 01h 17m |
| 80 mph (129 km/h) | 01h 07m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $11.99 | $23.98 |
| Mid-grade | $4.25 | $13.52 | $27.05 |
| Premium | $4.65 | $14.80 | $29.60 |
| Diesel | $5.30 | $16.87 | $33.73 |
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 · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.