How far is Westmont, CA from San Bernardino, CA?
The driving distance from Westmont, CA to San Bernardino, CA is about 73.7 miles (118.6 km), with a travel time of about 01h 31m by car.
- The straight-line flight distance is about 59.1 miles (95.1 km).
- For a round trip, plan for roughly 03h 03m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM PDT.
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 01h 31m.
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.
A city in Los Angeles County, California.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Westmont and San Bernardino.
Turn-by-Turn Driving Directions
Step-by-step road directions between Westmont and San Bernardino.
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1
Start on the route
52 m · 14 sec
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2
Turn right onto West 105th Street
638 ft · 35 sec · West 105th Street
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3
Turn left onto Denker Avenue
103 m · 17 sec · Denker Avenue
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4
Turn left onto West 106th Street
1330 ft · 49 sec · West 106th Street
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5
Turn right onto South Normandie Avenue
3275 ft · 1 min · South Normandie Avenue
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6
Turn left onto West Imperial Highway
2593 ft · 55 sec · West Imperial Highway
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7
Turn right onto South Vermont Avenue
614 ft · 12 sec · South Vermont Avenue
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8
Turn slight left
138 m · 21 sec
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9
Turn left onto West 116th Place
1405 ft · 26 sec · West 116th Place
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10
Take the ramp straight toward I 105 East
1477 ft · 36 sec
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11
Merge slight left onto Century Freeway
10.1 mi · 12 min · Century Freeway
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12
Keep slight left to continue on I 605 North
1.1 km · 1 min
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13
Keep slight left to continue on I 605 North
1555 ft · 40 sec
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14
Merge slight left onto San Gabriel River Freeway
11.6 mi · 13 min · San Gabriel River Freeway
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15
Take the exit slight right toward I 10 West, I 10 East: Los Angeles, San Bernardino
932 ft · 23 sec
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16
Keep slight right to continue on I 10 East: San Bernardino
1685 ft · 41 sec
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17
Merge slight left onto San Bernardino Freeway
1 mi · 1 min · San Bernardino Freeway
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18
Keep slight right to continue on San Bernardino Freeway
2.2 mi · 3 min · San Bernardino Freeway
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19
Keep slight right to continue on San Bernardino Freeway
2 mi · 2 min · San Bernardino Freeway
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20
Keep slight right to continue on San Bernardino Freeway
1.1 mi · 1 min · San Bernardino Freeway
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21
Keep slight right to continue on San Bernardino Freeway
1.5 mi · 2 min · San Bernardino Freeway
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22
Keep slight right to continue on San Bernardino Freeway
1.4 mi · 2 min · San Bernardino Freeway
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23
Keep slight right to continue on San Bernardino Freeway
2 mi · 2 min · San Bernardino Freeway
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24
Keep slight right to continue on San Bernardino Freeway
2.1 mi · 2 min · San Bernardino Freeway
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25
Keep slight right to continue on San Bernardino Freeway
4 mi · 5 min · San Bernardino Freeway
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26
Keep slight left to continue on I-10 Metro ExpressLanes
9 mi · 10 min · I-10 Metro ExpressLanes
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27
Merge slight right onto San Bernardino Freeway
14.3 mi · 16 min · San Bernardino Freeway
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28
Take the exit slight right toward I 215: Riverside, San Bernardino, Barstow
952 ft · 23 sec
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29
Keep slight left to continue on I 215 North: San Bernardino, Barstow
1.5 km · 2 min
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30
Merge slight left onto San Bernardino Freeway
2.3 mi · 3 min · San Bernardino Freeway
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31
Take the exit slight right toward 5th Street, Civic Center
1510 ft · 42 sec
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32
Turn right onto West 5th Street
1.1 km · 1 min · West 5th Street
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33
Arrive at your destination
0 m · 1 sec · West 5th Street
Car Route Details
A richer read on the saved driving route between Westmont and San Bernardino.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
San Bernardino Freeway
Merge slight right onto San Bernardino Freeway
14.3 mi · 00h 16m
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 Westmont and Sunny near San Bernardino.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Westmont to San Bernardino?
The road trip is about 73.7 miles (118.6 km) and usually takes 01h 31m 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?
Diamond Bar is a useful midpoint, sitting about 35.2 miles from Westmont and 38.5 miles from San Bernardino.
How much longer is the road route than the straight-line distance?
The direct path is about 59.1 miles (95.1 km), while the road route adds roughly 14.6 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 8:00 AM to 10:00 AM PDT. If you want a more comfortable same-day return, try to leave by 3:26 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $15.00 one way or $30.00 round trip. Estimated CO2 is about 23.1 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Westmont and Sunny near San Bernardino.
Stop Ideas Near Diamond Bar
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Your Home Away From Home
Embassy Suites by Hilton Brea North Orange County
City of South El Monte City Hall
Chino City Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Diamond Bar.
Pomona station
Claremont, California
Ontario
Fullerton Transportation Center
Flight Path Map
This map shows the direct air route between Westmont and San Bernardino. Straight-line distance: 59.12 mi (95.14 km).
#1 Westmont
City in DuPage County, Illinois, United States of America
| Population | 31,853 |
| Coordinates | 33.9414000, -118.3023000 |
| Altitude | 66 |
| Country | United States |
#2 San Bernardino
The second most populous city in San Bernardino County, California.
| Population | 217,491 |
| Coordinates | 34.1083400, -117.2897700 |
| Altitude | 321 |
| Country | United States |
End: West 5th Street (-117.289794, 34.108326)
Estimated Travel Time
Distance: 119 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 27m |
| 40 mph (64.37 km/h) | 01h 50m |
| 50 mph (80.47 km/h) | 01h 28m |
| 60 mph (96.56 km/h) | 01h 13m |
| 70 mph (112.65 km/h) | 01h 03m |
| 80 mph (129 km/h) | 00h 55m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $15.00 | $30.00 |
| Mid-grade | $6.07 | $15.77 | $31.54 |
| Premium | $6.24 | $16.23 | $32.46 |
| Diesel | $7.57 | $19.67 | $39.35 |
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 California · Apr 24, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.