How far is Fremont, CA from South San Francisco, CA?
The driving distance from Fremont, CA to South San Francisco, CA is about 34.6 miles (55.7 km), with a travel time of about 00h 42m by car.
- The straight-line flight distance is about 24.1 miles (38.8 km).
- For a round trip, plan for roughly 01h 25m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM PDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 42m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in San Mateo County, California, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Fremont and South San Francisco.
Turn-by-Turn Driving Directions
Step-by-step road directions between Fremont and South San Francisco.
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1
Start on Mowry Avenue
33 m · 5 sec · Mowry Avenue
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2
Continue on Mowry Avenue
1.4 mi · 3 min · Mowry Avenue
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3
Take the ramp straight toward I 880 North: Oakland
1572 ft · 41 sec
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4
Merge slight left onto Nimitz Freeway
6.4 mi · 7 min · Nimitz Freeway
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5
Keep slight left
1.4 mi · 1 min
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6
Take the exit slight right toward Nimitz Freeway
1.1 mi · 1 min · Nimitz Freeway
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7
Take the exit slight right toward CA 92 West, CA 92 East: San Mateo, Half Moon Bay, Downtown, Jackson Street
526 ft · 7 sec
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8
Keep slight left to continue on CA 92 West: San Mateo Bridge, San Mateo, Half Moon Bay, Chabot College
2678 ft · 35 sec
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9
Merge slight left
3.6 mi · 4 min
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10
Keep slight left
528 ft · 7 sec
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11
Keep slight right
9.1 mi · 11 min
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12
Take the exit slight right toward US 101 North: San Francisco
2562 ft · 41 sec
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13
Merge slight left onto Bayshore Freeway
9.1 mi · 10 min · Bayshore Freeway
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14
Take the exit slight right toward South Airport Boulevard
1218 ft · 32 sec
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15
Turn left onto South Airport Boulevard
1061 ft · 28 sec · South Airport Boulevard
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16
Turn left onto South Airport Boulevard
868 ft · 24 sec · South Airport Boulevard
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17
Continue on Airport Boulevard
1910 ft · 44 sec · Airport Boulevard
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18
Arrive at your destination
0 m · 1 sec · Airport Boulevard
Car Route Details
A richer read on the saved driving route between Fremont and South San Francisco.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
CA 92 West
Keep slight right
9.14 mi · 00h 11m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Sunny leaving Fremont and Mostly Sunny near South San Francisco.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Fremont to South San Francisco?
The road trip is about 34.6 miles (55.7 km) and usually takes 00h 42m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Foster City is a useful midpoint, sitting about 17.3 miles from Fremont and 17.3 miles from South San Francisco.
How much longer is the road route than the straight-line distance?
The direct path is about 24.1 miles (38.8 km), while the road route adds roughly 10.5 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 7:00 AM to 7:00 PM PDT. If you want a more comfortable same-day return, try to leave by 7:04 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $7.04 one way or $14.08 round trip. Estimated CO2 is about 10.8 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Fremont and Mostly Sunny near South San Francisco.
Stop Ideas Near Foster City
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 Foster City.
Hayward station
Oakland Coliseum station
Fremont station
Oakland – Jack London Square station
Flight Path Map
This map shows the direct air route between Fremont and South San Francisco. Straight-line distance: 24.1 mi (38.78 km).
#1 Fremont
The fifth most populous city in California.
| Population | 234,569 |
| Coordinates | 37.5482700, -121.9885700 |
| Altitude | 17 |
| Country | United States |
#2 South San Francisco
The most populous city in San Mateo County, California.
| Population | 66,558 |
| Coordinates | 37.6546600, -122.4077500 |
| Altitude | 4 |
| Country | United States |
End: South San Francisco (-122.40775, 37.65466)
Estimated Travel Time
Distance: 56 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 09m |
| 40 mph (64.37 km/h) | 00h 51m |
| 50 mph (80.47 km/h) | 00h 41m |
| 60 mph (96.56 km/h) | 00h 34m |
| 70 mph (112.65 km/h) | 00h 29m |
| 80 mph (129 km/h) | 00h 25m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $7.04 | $14.08 |
| Mid-grade | $6.07 | $7.40 | $14.80 |
| Premium | $6.24 | $7.62 | $15.23 |
| Diesel | $7.57 | $9.23 | $18.46 |
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 18, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.