How far is Markham, IL from Mount Vernon, IL?
The driving distance from Markham, IL to Mount Vernon, IL is about 256.5 miles (412.8 km), with a travel time of about 04h 41m by car.
- The straight-line flight distance is about 235.3 miles (378.6 km).
- For a round trip, plan for roughly 09h 22m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 04h 41m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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 Champaign County, Illinois
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms Likely
Driving Route Map
The map below follows the saved road route between Markham and Mount Vernon.
Turn-by-Turn Driving Directions
Step-by-step road directions between Markham and Mount Vernon.
-
1
Start on 163rd Street
20 m · 7 sec · 163rd Street
-
2
Turn right onto Kedzie Avenue
2913 ft · 1 min · Kedzie Avenue
-
3
Take the ramp slight right toward I 80 West
2482 ft · 1 min
-
4
Merge slight left
2.3 mi · 3 min
-
5
Take the exit slight left toward I 57 South: Memphis
1640 ft · 32 sec
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6
Merge slight right
187.1 mi · 3 hr 22 min
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7
Keep slight left to continue on I 57 South: Memphis
62.7 mi · 1 hr 7 min
-
8
Take the exit slight right toward IL 15: Ashley, Mt. Vernon
1624 ft · 42 sec
-
9
Turn straight onto Broadway Street
2.8 mi · 5 min · Broadway Street
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10
Arrive at your destination
0 m · 1 sec · Broadway Street
Car Route Details
A richer read on the saved driving route between Markham and Mount Vernon.
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 57 South
Merge slight right
187 mi · 03h 22m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Rain leaving Markham and Showers And Thunderstorms Likely near Mount Vernon.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Markham to Mount Vernon?
The road trip is about 256.5 miles (412.8 km) and usually takes 04h 41m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Pesotum is a useful midpoint, sitting about 128.3 miles from Markham and 128.2 miles from Mount Vernon.
How much longer is the road route than the straight-line distance?
The direct path is about 235.3 miles (378.6 km), while the road route adds roughly 21.2 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 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 7:38 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $42.22 one way or $84.44 round trip. Estimated CO2 is about 80.4 kg one way.
What should you check before leaving?
Before you leave, expect Rain around Markham and Showers And Thunderstorms Likely near Mount Vernon.
Stop Ideas Near Pesotum
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 Pesotum.
Illinois Terminal
Rantoul
Mattoon station
Danville, Illinois
Flight Path Map
This map shows the direct air route between Markham and Mount Vernon. Straight-line distance: 235.24 mi (378.58 km).
#1 Markham
A city located in Cook County, Illinois.
| Population | 13,400 |
| Coordinates | 41.5936500, -87.6947700 |
| Altitude | 189 |
| Country | United States |
#2 Mount Vernon
City located near the center of Jefferson County, Illinois, United States
| Population | 14,511 |
| Coordinates | 38.3172700, -88.9031200 |
| Altitude | 156 |
| Country | United States |
End: Mount Vernon (-88.90312, 38.31727)
Estimated Travel Time
Distance: 413 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 08h 32m |
| 40 mph (64.37 km/h) | 06h 24m |
| 50 mph (80.47 km/h) | 05h 07m |
| 60 mph (96.56 km/h) | 04h 16m |
| 70 mph (112.65 km/h) | 03h 39m |
| 80 mph (129 km/h) | 03h 11m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.67 | $42.22 | $84.44 |
| Mid-grade | $5.29 | $47.89 | $95.79 |
| Premium | $5.84 | $52.82 | $105.65 |
| Diesel | $6.57 | $59.47 | $118.94 |
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