How far is Byron, IL from Markham, IL?
The driving distance from Byron, IL to Markham, IL is about 112.1 miles (180.4 km), with a travel time of about 01h 52m by car.
- The straight-line flight distance is about 88.4 miles (142.2 km).
- For a round trip, plan for roughly 03h 45m 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 01h 52m.
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 Lee County, Illinois
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms
Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Byron and Markham.
Turn-by-Turn Driving Directions
Step-by-step road directions between Byron and Markham.
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1
Start on the route
27 m · 12 sec
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2
Turn left
40 m · 15 sec
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3
At the end of the road, turn left onto North Union Street
2666 ft · 1 min · North Union Street
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4
Turn left
12.1 mi · 18 min
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5
Take the ramp left
1876 ft · 46 sec
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6
Merge slight left
13.6 mi · 15 min
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7
Take the exit slight right toward I 88 East Toll: Chicago
2318 ft · 1 min
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8
Merge slight left onto Ronald Reagan Memorial Tollway
56.3 mi · 1 hr 4 min · Ronald Reagan Memorial Tollway
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9
Keep slight right to continue on Ronald Reagan Memorial Tollway
3.7 mi · 4 min · Ronald Reagan Memorial Tollway
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10
Take the exit slight right toward I 294 South, IL 38: Indiana
1692 ft · 41 sec
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11
Keep slight left
1 mi · 2 min
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12
Merge slight left onto Tri-State Tollway
3.6 mi · 5 min · Tri-State Tollway
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13
Keep slight right to continue on Tri-State Tollway
3.5 mi · 4 min · Tri-State Tollway
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14
Continue on Mile-Long Bridge
1.5 km · 1 min · Mile-Long Bridge
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15
Continue on Tri-State Tollway
14.1 mi · 18 min · Tri-State Tollway
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16
Take the exit slight right toward US 6: 159th Street
1517 ft · 37 sec
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17
Keep slight right to continue on US 6 West: 159th Street
2223 ft · 54 sec
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18
Turn straight onto West 159th Street
2159 ft · 57 sec · West 159th Street
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19
Turn left onto Kedzie Avenue
2728 ft · 1 min · Kedzie Avenue
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20
Turn right onto 163rd Street
20 m · 3 sec · 163rd Street
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21
Arrive at your destination
0 m · 1 sec · 163rd Street
Car Route Details
A richer read on the saved driving route between Byron and Markham.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Ronald Reagan Memorial Tollway
Merge slight left onto Ronald Reagan Memorial Tollway
56.3 mi · 01h 04m
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.
Showers And Thunderstorms leaving Byron and Showers And Thunderstorms near Markham.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Byron to Markham?
The road trip is about 112.1 miles (180.4 km) and usually takes 01h 52m 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?
Willow Creek is a useful midpoint, sitting about 56 miles from Byron and 56.1 miles from Markham.
How much longer is the road route than the straight-line distance?
The direct path is about 88.4 miles (142.2 km), while the road route adds roughly 23.7 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 2:44 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $18.43 one way or $36.85 round trip. Estimated CO2 is about 35.1 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms around Byron and Showers And Thunderstorms near Markham.
Stop Ideas Near Willow Creek
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 Willow Creek.
Plano
Naperville
Joliet Transportation Center
La Grange Road
Flight Path Map
This map shows the direct air route between Byron and Markham. Straight-line distance: 88.37 mi (142.22 km).
#1 Byron
City in Ogle County, Illinois, United States
| Population | 3,650 |
| Coordinates | 42.1269700, -89.2556600 |
| Altitude | 222 |
| Country | United States |
#2 Markham
A city located in Cook County, Illinois.
| Population | 13,400 |
| Coordinates | 41.5936500, -87.6947700 |
| Altitude | 189 |
| Country | United States |
End: 163rd Street (-87.694771, 41.593508)
Estimated Travel Time
Distance: 180 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 44m |
| 40 mph (64.37 km/h) | 02h 48m |
| 50 mph (80.47 km/h) | 02h 14m |
| 60 mph (96.56 km/h) | 01h 52m |
| 70 mph (112.65 km/h) | 01h 36m |
| 80 mph (129 km/h) | 01h 23m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.67 | $18.43 | $36.85 |
| Mid-grade | $5.29 | $20.90 | $41.81 |
| Premium | $5.84 | $23.06 | $46.11 |
| Diesel | $6.57 | $25.96 | $51.91 |
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 · Oct 15, 2026