How far is Quincy, IL from Prospect Heights, IL?
The driving distance from Quincy, IL to Prospect Heights, IL is about 320.1 miles (515.1 km), with a travel time of about 06h 06m by car.
- The straight-line flight distance is about 234.6 miles (377.5 km).
- For a round trip, plan for roughly 12h 12m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 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 06h 06m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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.
Village in McLean County, Illinois, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Quincy and Prospect Heights.
Turn-by-Turn Driving Directions
Step-by-step road directions between Quincy and Prospect Heights.
-
1
Start on the route
16 m · 2 sec
-
2
Turn right onto Broadway Street
116 m · 36 sec · Broadway Street
-
3
Continue on Broadway Street
923 ft · 25 sec · Broadway Street
-
4
Turn left onto North 3rd Street
2348 ft · 53 sec · North 3rd Street
-
5
Continue on Gardner Expressway
11.3 mi · 20 min · Gardner Expressway
-
6
Continue on East 1083rd Lane
578 ft · 12 sec · East 1083rd Lane
-
7
Take the ramp right
2526 ft · 1 min
-
8
Merge slight left onto Chicago-Kansas City Expressway
2.8 mi · 3 min · Chicago-Kansas City Expressway
-
9
Merge slight right
106.9 mi · 1 hr 55 min
-
10
Continue straight
20.5 mi · 22 min
-
11
Keep slight right to continue on I 55 North: Chicago
29.4 mi · 31 min
-
12
Keep slight left to continue on I 55 North, I 74 West: Chicago, Peoria
112.5 mi · 2 hr 3 min
-
13
Take the exit slight right toward I 355 Toll: Northwest Suburbs, Southwest Suburbs
2797 ft · 1 min
-
14
Keep slight left to continue on I 355 North: Northwest Suburbs
1.2 mi · 3 min
-
15
Merge slight left onto Veterans Memorial Tollway
19.2 mi · 24 min · Veterans Memorial Tollway
-
16
Merge slight left
5.6 mi · 7 min
-
17
Keep slight left
4.9 mi · 7 min
-
18
Take the exit slight right toward East Palatine Road
2489 ft · 1 min
-
19
Merge slight left onto Palatine Road
1.1 mi · 1 min · Palatine Road
-
20
Turn slight right onto East Rand Road
1.5 mi · 3 min · East Rand Road
-
21
Turn left onto West Camp McDonald Road
1.4 km · 2 min · West Camp McDonald Road
-
22
Arrive at your destination
0 m · 1 sec · West Camp McDonald Road
Car Route Details
A richer read on the saved driving route between Quincy and Prospect Heights.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
I 55 North
Keep slight left to continue on I 55 North, I 74 West: Chicago, Peoria
112 mi · 02h 03m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Sunny leaving Quincy and Sunny near Prospect Heights.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Quincy to Prospect Heights?
The road trip is about 320.1 miles (515.1 km) and usually takes 06h 06m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
McLean is a useful midpoint, sitting about 159.9 miles from Quincy and 160.1 miles from Prospect Heights.
How much longer is the road route than the straight-line distance?
The direct path is about 234.6 miles (377.5 km), while the road route adds roughly 85.5 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 7:30 AM CDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $42.57 one way or $85.15 round trip. Estimated CO2 is about 100.3 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Quincy and Sunny near Prospect Heights.
Stop Ideas Near McLean
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Route 66 Original Alignment- Driveable!
City of Lincoln
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to McLean.
Lincoln
Uptown Station
Peoria, Illinois
Springfield station
Flight Path Map
This map shows the direct air route between Quincy and Prospect Heights. Straight-line distance: 234.56 mi (377.49 km).
#1 Quincy
County seat of Adams County, Illinois, United States
| Population | 39,589 |
| Coordinates | 39.9356000, -91.4098700 |
| Altitude | 173 |
| Country | United States |
#2 Prospect Heights
City in Cook County, Illinois, United States
| Population | 15,702 |
| Coordinates | 42.0953000, -87.9375700 |
| Altitude | 204 |
| Country | United States |
End: Prospect Heights (-87.93757, 42.0953)
Estimated Travel Time
Distance: 515 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 10h 39m |
| 40 mph (64.37 km/h) | 08h 00m |
| 50 mph (80.47 km/h) | 06h 24m |
| 60 mph (96.56 km/h) | 05h 20m |
| 70 mph (112.65 km/h) | 04h 34m |
| 80 mph (129 km/h) | 03h 59m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $42.57 | $85.15 |
| Mid-grade | $4.25 | $48.02 | $96.03 |
| Premium | $4.65 | $52.54 | $105.09 |
| Diesel | $5.30 | $59.88 | $119.76 |
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 · May 25, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.