How far is Markham, IL from Custer, IL?
The driving distance from Markham, IL to Custer, IL is about 107.1 miles (172.3 km), with a travel time of about 02h 04m by car.
- The straight-line flight distance is about 84.9 miles (136.6 km).
- For a round trip, plan for roughly 04h 09m 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 04m.
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.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Driving Route Map
The map below follows the saved road route between Markham and Custer.
Turn-by-Turn Driving Directions
Step-by-step road directions between Markham and Custer.
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1
Start on 163rd Street
20 m · 7 sec · 163rd Street
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2
Turn right onto Kedzie Avenue
2913 ft · 1 min · Kedzie Avenue
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3
Take the ramp slight right toward I 80 West
2482 ft · 1 min
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4
Merge slight left
75.6 mi · 1 hr 26 min
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5
Take the exit slight right toward I 39 South, US 51 South: Normal, Bloomington
2489 ft · 1 min
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6
Merge slight left
23.6 mi · 25 min
-
7
Take the exit slight right toward IL 17: Lacon, Wenona
2136 ft · 52 sec
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8
Turn straight onto 700 North Road
5.4 mi · 8 min · 700 North Road
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9
Turn right onto County Road 2500 East
2654 ft · 2 min · County Road 2500 East
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10
Arrive at your destination
0 m · 1 sec · County Road 2500 East
Car Route Details
A richer read on the saved driving route between Markham and Custer.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 80 West
Merge slight left
75.6 mi · 01h 26m
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 Markham and Sunny near Custer.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Markham to Custer?
The road trip is about 107.1 miles (172.3 km) and usually takes 02h 04m 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?
Seneca is a useful midpoint, sitting about 53.4 miles from Markham and 53.6 miles from Custer.
How much longer is the road route than the straight-line distance?
The direct path is about 84.9 miles (136.6 km), while the road route adds roughly 22.2 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 $14.25 one way or $28.51 round trip. Estimated CO2 is about 33.6 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Markham and Sunny near Custer.
Stop Ideas Near Seneca
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 Seneca.
Dwight station
Plano
Pontiac station
Joliet Transportation Center
Flight Path Map
This map shows the direct air route between Markham and Custer. Straight-line distance: 84.91 mi (136.65 km).
#1 Markham
A city located in Cook County, Illinois.
| Population | 13,400 |
| Coordinates | 41.5936500, -87.6947700 |
| Altitude | 189 |
| Country | United States |
#2 Custer
Settlement in Sangamon County, Illinois
| Population | 1,341 |
| Coordinates | 41.0372600, -89.1536900 |
| Altitude | 211 |
| Country | United States |
End: Custer (-89.15369, 41.03726)
Estimated Travel Time
Distance: 172 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 33m |
| 40 mph (64.37 km/h) | 02h 40m |
| 50 mph (80.47 km/h) | 02h 08m |
| 60 mph (96.56 km/h) | 01h 47m |
| 70 mph (112.65 km/h) | 01h 31m |
| 80 mph (129 km/h) | 01h 20m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $14.25 | $28.51 |
| Mid-grade | $4.25 | $16.08 | $32.15 |
| Premium | $4.65 | $17.59 | $35.18 |
| Diesel | $5.30 | $20.05 | $40.10 |
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.