How far is Westmont, CA from San Francisco, CA?
The driving distance from Westmont, CA to San Francisco, CA is about 391.7 miles (630.4 km), with a travel time of about 06h 38m by car.
- The straight-line flight distance is about 351.1 miles (565 km).
- For a round trip, plan for roughly 13h 17m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM PDT.
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 38m.
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.
Small city in Fresno County, California
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Patchy Fog then Sunny
Driving Route Map
The map below follows the saved road route between Westmont and San Francisco.
Turn-by-Turn Driving Directions
Step-by-step road directions between Westmont and San Francisco.
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1
Start on the route
52 m · 14 sec
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2
Turn right onto West 105th Street
1959 ft · 2 min · West 105th Street
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3
At the end of the road, turn right onto South Western Avenue
1655 ft · 50 sec · South Western Avenue
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4
Turn left onto West Century Boulevard
3.4 mi · 6 min · West Century Boulevard
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5
Take the ramp right toward I 405 North: Santa Monica, San Diego Freeway
923 ft · 24 sec
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6
Merge slight left
1100 ft · 14 sec
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7
Take the exit slight left toward I 405 North: Santa Monica
795 ft · 11 sec
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8
Merge slight left onto San Diego Freeway
26.3 mi · 30 min · San Diego Freeway
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9
Merge slight right
1.6 mi · 2 min
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10
Keep slight right to continue on I 5 Truck North, CA 14 Truck
1.5 mi · 2 min
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11
Keep slight left
36.1 mi · 42 min
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12
Keep slight left to continue on Golden State Freeway
22.3 mi · 25 min · Golden State Freeway
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13
Keep slight right to continue on Westside Freeway
225.6 mi · 4 hr 2 min · Westside Freeway
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14
Keep slight left to continue on William Elton Brown Freeway
15.9 mi · 17 min · William Elton Brown Freeway
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15
Keep slight right to continue on William Elton Brown Freeway
1.1 mi · 1 min · William Elton Brown Freeway
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16
Merge slight left onto Arthur H. Breed Junior Freeway
18 mi · 21 min · Arthur H. Breed Junior Freeway
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17
Keep slight right to continue on Arthur H. Breed Junior Freeway
11.6 mi · 13 min · Arthur H. Breed Junior Freeway
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18
Keep slight right to continue on MacArthur Freeway
8.3 mi · 10 min · MacArthur Freeway
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19
Keep slight left to continue on MacArthur Freeway
7.2 mi · 8 min · MacArthur Freeway
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20
Take the exit slight left toward I 80 West: San Francisco
1.5 km · 1 min
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21
Merge slight right onto Dwight D. Eisenhower Highway
1015 ft · 17 sec · Dwight D. Eisenhower Highway
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22
Turn slight left onto Dwight D. Eisenhower Highway
1959 ft · 33 sec · Dwight D. Eisenhower Highway
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23
Keep slight left to continue on Dwight D. Eisenhower Highway
5.5 mi · 8 min · Dwight D. Eisenhower Highway
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24
Continue on Route 80
1438 ft · 24 sec · Route 80
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25
Continue on Route 80
1.2 km · 1 min · Route 80
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26
Continue on Route 80
1893 ft · 32 sec · Route 80
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27
Keep slight right to continue on US 101 North: Golden Gate Bridge
1919 ft · 39 sec
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28
Merge slight right onto Central Freeway
1462 ft · 25 sec · Central Freeway
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29
Continue on Octavia Boulevard
2490 ft · 42 sec · Octavia Boulevard
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30
Turn right onto Market Street
629 ft · 32 sec · Market Street
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31
Keep slight right to continue on Market Street
961 ft · 35 sec · Market Street
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32
Arrive at your destination
0 m · 1 sec · Market Street
Car Route Details
A richer read on the saved driving route between Westmont and San Francisco.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Westside Freeway
Keep slight right to continue on Westside Freeway
226 mi · 04h 02m
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.
Mostly Sunny leaving Westmont and Patchy Fog then Sunny near San Francisco.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Westmont to San Francisco?
The road trip is about 391.7 miles (630.4 km) and usually takes 06h 38m 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?
Huron is a useful midpoint, sitting about 195 miles from Westmont and 196.7 miles from San Francisco.
How much longer is the road route than the straight-line distance?
The direct path is about 351.1 miles (565 km), while the road route adds roughly 40.6 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 PDT. 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 $79.73 one way or $159.46 round trip. Estimated CO2 is about 122.8 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Westmont and Patchy Fog then Sunny near San Francisco.
Stop Ideas Near Huron
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 Huron.
Lemoore (Naval Air Station), California
Kettleman City, California
Lemoore, California
Hanford station
Flight Path Map
This map shows the direct air route between Westmont and San Francisco. Straight-line distance: 351.07 mi (565 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 Francisco
The seventeenth most populous city in the United States and the center of the San Francisco Bay Area.
| Population | 866,606 |
| Coordinates | 37.7749300, -122.4194200 |
| Altitude | 16 |
| Country | United States |
End: Market Street (-122.419433, 37.774953)
Estimated Travel Time
Distance: 630 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 13h 03m |
| 40 mph (64.37 km/h) | 09h 47m |
| 50 mph (80.47 km/h) | 07h 50m |
| 60 mph (96.56 km/h) | 06h 31m |
| 70 mph (112.65 km/h) | 05h 35m |
| 80 mph (129 km/h) | 04h 53m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $79.73 | $159.46 |
| Mid-grade | $6.07 | $83.83 | $167.66 |
| Premium | $6.24 | $86.28 | $172.56 |
| Diesel | $7.57 | $104.58 | $209.15 |
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.