How far is Markham, IL from Byron, IL?
The driving distance from Markham, IL to Byron, IL is about 111.5 miles (179.5 km), with a travel time of about 02h 18m by car.
- The straight-line flight distance is about 88.4 miles (142.2 km).
- For a round trip, plan for roughly 04h 36m 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 18m.
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 Markham and Byron.
Turn-by-Turn Driving Directions
Step-by-step road directions between Markham and Byron.
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1
Start on 163rd Street
20 m · 10 sec · 163rd Street
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2
Turn left onto Kedzie Avenue
2.3 mi · 4 min · Kedzie Avenue
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3
Turn right onto West 147th Street
1979 ft · 39 sec · West 147th Street
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4
Turn left onto I 294 North: Wisconsin
3218 ft · 1 min
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5
Merge slight left onto Tri-State Tollway
20.1 mi · 25 min · Tri-State Tollway
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6
Take the exit slight right toward I 88 West Toll: Aurora
1.5 mi · 3 min
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7
Keep slight right to continue on 22nd Street (Cermak Road)
1131 ft · 28 sec
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8
Merge slight right onto Ronald Reagan Memorial Tollway
24.4 mi · 30 min · Ronald Reagan Memorial Tollway
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9
Keep slight left to continue on Ronald Reagan Memorial Tollway
34.8 mi · 37 min · Ronald Reagan Memorial Tollway
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10
Take the exit slight right toward I 39 North, US 51 North: Rockford
1.1 km · 1 min
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11
Merge slight left
13.2 mi · 14 min
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12
Take the exit slight right toward IL 72: Genoa, Byron
2120 ft · 54 sec
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13
Turn right
12.3 mi · 18 min
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14
Turn slight right
2761 ft · 1 min
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15
Turn right
40 m · 12 sec
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16
Turn right
27 m · 6 sec
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17
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Markham and Byron.
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
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.
Showers And Thunderstorms leaving Markham and Showers And Thunderstorms near Byron.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Markham to Byron?
The road trip is about 111.5 miles (179.5 km) and usually takes 02h 18m 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 55.7 miles from Markham and 55.9 miles from Byron.
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 23.1 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 1:54 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $18.38 one way or $36.76 round trip. Estimated CO2 is about 35 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms around Markham and Showers And Thunderstorms near Byron.
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 Markham and Byron. Straight-line distance: 88.37 mi (142.22 km).
#1 Markham
A city located in Cook County, Illinois.
| Population | 13,400 |
| Coordinates | 41.5936500, -87.6947700 |
| Altitude | 189 |
| 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: 180 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 43m |
| 40 mph (64.37 km/h) | 02h 47m |
| 50 mph (80.47 km/h) | 02h 13m |
| 60 mph (96.56 km/h) | 01h 51m |
| 70 mph (112.65 km/h) | 01h 35m |
| 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 | $18.38 | $36.76 |
| Mid-grade | $5.29 | $20.85 | $41.70 |
| Premium | $5.84 | $23.00 | $46.00 |
| Diesel | $6.57 | $25.89 | $51.78 |
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