How far is Buffalo Grove, IL from Westmont, CA?
The driving distance from Buffalo Grove, IL to Westmont, CA is about 2032.5 miles (3271 km), with a travel time of about 35h 43m by car.
- The straight-line flight distance is about 1734.9 miles (2792 km).
- For a round trip, plan for roughly 71h 26m 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 35h 43m.
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.
County seat of Jefferson County, Colorado, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Patchy Fog then Partly Sunny
Driving Route Map
The map below follows the saved road route between Buffalo Grove and Westmont.
Turn-by-Turn Driving Directions
Step-by-step road directions between Buffalo Grove and Westmont.
-
1
Start on Aptakisic Road
18 m · 5 sec · Aptakisic Road
-
2
Turn left onto South Buffalo Grove Road
2.1 mi · 4 min · South Buffalo Grove Road
-
3
Turn right onto East Hintz Road
1.2 km · 1 min · East Hintz Road
-
4
Turn left onto North Arlington Heights Road
1.6 km · 2 min · North Arlington Heights Road
-
5
Turn right onto Palatine Road
1.2 mi · 1 min · Palatine Road
-
6
Take the exit slight right toward IL 53 South
1330 ft · 33 sec
-
7
Merge slight left
3.2 mi · 4 min
-
8
Keep slight left to continue on I 290 East: Chicago, Biesterfield Road
7 mi · 9 min
-
9
Keep slight left to continue on I 355 South Tollway: Joliet
9.5 mi · 12 min
-
10
Take the exit slight right toward IL 56, I 88 Toll: Chicago, Aurora, Butterfield Road
1716 ft · 42 sec
-
11
Keep slight left to continue on I 88 Toll: Chicago, Aurora
1.1 km · 2 min
-
12
Keep slight right to continue on I 88 East, I 88 West: Aurora, Chicago
1096 ft · 27 sec
-
13
Keep slight right to continue on I 88 West: Aurora
1.1 km · 1 min
-
14
Merge slight left onto Ronald Reagan Memorial Tollway
18.8 mi · 23 min · Ronald Reagan Memorial Tollway
-
15
Keep slight left to continue on Ronald Reagan Memorial Tollway
69.5 mi · 1 hr 14 min · Ronald Reagan Memorial Tollway
-
16
Continue on Ronald Reagan Memorial Highway
1.1 mi · 1 min · Ronald Reagan Memorial Highway
-
17
Continue on Ronald Reagan Memorial Highway
37.8 mi · 40 min · Ronald Reagan Memorial Highway
-
18
Continue on Chicago-Kansas City Expressway
4.6 mi · 5 min · Chicago-Kansas City Expressway
-
19
Take the exit slight right toward I 80: Des Moines
1949 ft · 48 sec
-
20
Keep slight right
1.1 km · 1 min
-
21
Merge slight left
185.9 mi · 3 hr 23 min
-
22
Keep slight right to continue on I 80 West: Omaha
95.5 mi · 1 hr 43 min
-
23
Keep slight left to continue on I 80 West: Council Bluffs, Omaha Nebraska
23.7 mi · 26 min
-
24
Keep slight left to continue on I 80 West Express: Council Bluffs, Omaha
355.4 mi · 6 hr 3 min
-
25
Keep slight right to continue on I 76 West: Denver
188 mi · 3 hr 10 min
-
26
Merge slight left
501.7 mi · 8 hr 38 min
-
27
Keep slight left to continue on I 15 South: Las Vegas
1.2 mi · 3 min
-
28
Merge slight left onto Veterans Memorial Highway
160.9 mi · 2 hr 40 min · Veterans Memorial Highway
-
29
Continue on Las Vegas Freeway
123.8 mi · 2 hr 10 min · Las Vegas Freeway
-
30
Continue on Barstow and Mojave Freeway
5.7 mi · 6 min · Barstow and Mojave Freeway
-
31
Keep slight left to continue on Barstow and Mojave Freeway
1.4 km · 57 sec · Barstow and Mojave Freeway
-
32
Merge slight right
151.2 mi · 2 hr 43 min
-
33
Continue on CHP Officer Larry L. Wetterling and San Bernardino County Sheriff's Lieutenant Alfred E. Stewart Memorial Highway
5.6 mi · 6 min · CHP Officer Larry L. Wetterling and San Bernardino County Sheriff's Lieutenant Alfred E. Stewart Memorial Highway
-
34
Continue on Barstow and Mojave Freeway
6.3 mi · 7 min · Barstow and Mojave Freeway
-
35
Take the exit slight left
14.8 mi · 16 min
-
36
Take the exit slight right toward I 10 West: Los Angeles
2597 ft · 1 min
-
37
Merge slight left onto San Bernardino Freeway
1.5 mi · 2 min · San Bernardino Freeway
-
38
Take the exit slight left
62 m · 5 sec
-
39
Merge slight left onto I-10 Metro ExpressLanes
7.3 mi · 8 min · I-10 Metro ExpressLanes
-
40
Merge slight right onto San Bernardino Freeway
1.2 mi · 1 min · San Bernardino Freeway
-
41
Keep slight right to continue on San Bernardino Freeway
1.4 km · 1 min · San Bernardino Freeway
-
42
Keep slight right to continue on San Bernardino Freeway
1.3 mi · 2 min · San Bernardino Freeway
-
43
Keep slight right to continue on San Bernardino Freeway
1.9 mi · 2 min · San Bernardino Freeway
-
44
Keep slight right to continue on San Bernardino Freeway
1.9 mi · 2 min · San Bernardino Freeway
-
45
Keep slight right to continue on San Bernardino Freeway
1.6 mi · 2 min · San Bernardino Freeway
-
46
Keep slight right to continue on San Bernardino Freeway
1.4 mi · 2 min · San Bernardino Freeway
-
47
Keep slight right to continue on San Bernardino Freeway
1.5 mi · 2 min · San Bernardino Freeway
-
48
Keep slight right to continue on San Bernardino Freeway
1.1 mi · 1 min · San Bernardino Freeway
-
49
Keep slight right to continue on San Bernardino Freeway
2 mi · 2 min · San Bernardino Freeway
-
50
Keep slight right to continue on San Bernardino Freeway
1.6 mi · 2 min · San Bernardino Freeway
-
51
Keep slight right to continue on San Bernardino Freeway
1.3 mi · 1 min · San Bernardino Freeway
-
52
Take the exit slight right toward I 605: San Gabriel River Freeway
839 ft · 21 sec
-
53
Keep slight left to continue on I 605 South: San Bernardino
2135 ft · 52 sec
-
54
Merge slight left onto San Gabriel River Freeway
11.6 mi · 13 min · San Gabriel River Freeway
-
55
Take the exit slight right toward I 105 West: Imperial Highway
1155 ft · 28 sec
-
56
Keep slight left to continue on I 105 West
1.4 km · 2 min
-
57
Merge slight left onto Century Freeway
10.3 mi · 12 min · Century Freeway
-
58
Take the exit slight right toward Vermont Avenue
1323 ft · 36 sec
-
59
Turn right onto South Vermont Avenue
616 ft · 18 sec · South Vermont Avenue
-
60
Turn left onto West Imperial Highway
2643 ft · 51 sec · West Imperial Highway
-
61
Turn right onto South Normandie Avenue
1.1 km · 1 min · South Normandie Avenue
-
62
Turn left onto West 105th Street
691 ft · 32 sec · West 105th Street
-
63
Turn right
52 m · 12 sec
-
64
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Buffalo Grove and Westmont.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
I 76 West
Merge slight left
502 mi · 08h 38m
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 Buffalo Grove and Patchy Fog then Partly Sunny near Westmont.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Buffalo Grove to Westmont?
The road trip is about 2032.5 miles (3271 km) and usually takes 35h 43m 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?
Golden is a useful midpoint, sitting about 1014.9 miles from Buffalo Grove and 1017.6 miles from Westmont.
How much longer is the road route than the straight-line distance?
The direct path is about 1734.9 miles (2792 km), while the road route adds roughly 297.6 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 $270.46 one way or $540.91 round trip. Estimated CO2 is about 637.4 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 2 hour time difference between Buffalo Grove and Westmont, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Sunny around Buffalo Grove and Patchy Fog then Partly Sunny near Westmont.
Stop Ideas Near Golden
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Municipal Court Park
Denver City Council
Town Hall Arts Center
City of Littleton
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Golden.
Union Station
Denver (Bus Station), Colorado
Boulder, Colorado
Pine Junction, CO
Flight Path Map
This map shows the direct air route between Buffalo Grove and Westmont. Straight-line distance: 1734.86 mi (2791.99 km).
#1 Buffalo Grove
Village in Illinois, United States of America
| Population | 41,496 |
| Coordinates | 42.1514100, -87.9597900 |
| Altitude | 207 |
| Country | United States |
#2 Westmont
City in DuPage County, Illinois, United States of America
| Population | 31,853 |
| Coordinates | 33.9414000, -118.3023000 |
| Altitude | 66 |
| Country | United States |
End: Westmont (-118.3023, 33.9414)
Estimated Travel Time
Distance: 3271 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 67h 43m |
| 40 mph (64.37 km/h) | 50h 48m |
| 50 mph (80.47 km/h) | 40h 38m |
| 60 mph (96.56 km/h) | 33h 52m |
| 70 mph (112.65 km/h) | 29h 02m |
| 80 mph (129 km/h) | 25h 21m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $270.46 | $540.91 |
| Mid-grade | $4.25 | $305.03 | $610.05 |
| Premium | $4.65 | $333.78 | $667.57 |
| Diesel | $5.30 | $380.40 | $760.81 |
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 · Jun 02, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.