Origin
Grabtown, CA
Morning in Grabtown on Thursday
Local time
11:03 AM
PDT
Current temp
52°F
Unavailable
Live forecast
Trip from Grabtown, CA to South San Francisco, CA
Last recalculated Apr 16, 2026
Drive Time
37m
Distance
24.3 mi
39 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$6
one way
EV Charging
Unknown
Best Time to Leave
4 AM
0h 34m
★
6 AM
0h 37m
8 AM
0h 43m
10 AM
0h 39m
12 PM
0h 39m
3 PM
0h 40m
5 PM
0h 43m
8 PM
0h 35m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
South San Francisco, CA
Wikimedia Commons
Trip Overview
The drive from Grabtown, CA to South San Francisco, CA covers 24.3 miles and takes about 37m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on Junipero Serra Freeway, Skyline Boulevard, Tunitas Creek Road for much of the mileage, and the overall profile is mixed drive. The longest uninterrupted segment is about 8.2 miles on Junipero Serra Freeway. At current regular gas prices, budget about $5.59 one way before food or hotel costs.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 37m. Total distance: 24.3 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
37m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (39%). Some complex stretches to watch for.
Scenic Drive
Mixed drive route profile with national parks nearby.
Drive Character
The drive from Grabtown, CA to South San Francisco, CA covers 24.3 miles and takes about 37m, using a mix of highways and local roads.
Expect a mix of faster highway mileage and slower local approaches near the beginning or end.
There are about 16 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Junipero Serra Freeway is the longest continuous segment at about 8.2 miles.
How Hard Is This Drive?
This route mixes highway mileage with some local-road sections near the start or finish. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 11.5 miles in near CA 35 / Skyline Boulevard.
Driving Effort
8/10
Focused - busy navigation packed into a short drive
Balances navigation complexity with total wheel time.
This is a short but busy drive. With 12 decision points packed into just 24.3 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 37m.
Where does it get tricky?
The main spots that need attention: at 11.5 miles (CA 35 / Skyline Boulevard): Lane positioning matters here; at 12.4 miles (CA 35 / Bunker Hill Drive): Lane positioning matters here; at 12.5 miles: Lane positioning matters here. Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 12 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
6
11.5 mi into trip
|
~20m in
|
CA 35 / Skyline Boulevard
Turn left onto CA 35 / Skyline Boulevard
Lane positioning matters here
Use the left lane.
6
12.4 mi into trip
|
~21m in
|
CA 35 / Bunker Hill Drive
Turn right onto CA 35 / Bunker Hill Drive
Lane positioning matters here
Use the straight / right lanes.
9
12.5 mi into trip
|
~21m in
Take the ramp toward I 280 North, CA 35 North: San Francisco
Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight lane.
Toward I 280 North, CA 35 North: San Francisco
7
20.9 mi into trip
|
~31m in
Take the exit toward I 380 East: San Francisco International Airport
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
Exit 43B
Toward I 380 East: San Francisco International...
8
23.3 mi into trip
|
~35m in
Take the exit toward South Airport Boulevard
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
Exit 424
Toward South Airport Boulevard
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Junipero Serra Freeway | 8.2 mi | 9m |
| Skyline Boulevard | 7.8 mi | 11m |
| Tunitas Creek Road | 2.6 mi | 6m |
| Half Moon Bay Road | 2 mi | 3m |
| Quentin L. Kopp Freeway | 1.1 mi | 1m |
| South Airport Boulevard | 0.4 mi | <1m |
| Airport Boulevard | 0.4 mi | <1m |
| Bayshore Freeway | <0.1 mi | <1m |
Longest stretch:
Junipero Serra Freeway
— 8.2 mi, about 9m
Turn-by-Turn Driving Directions
Step-by-step road directions between Grabtown, CA and South San Francisco, CA.
1
Start on Tunitas Creek Road
2.6 mi
·
6 min
·
Tunitas Creek Road
2
Turn left onto CA 35
6.9 mi
·
10 min
·
Skyline Boulevard
3
At end of road, turn right onto CA 92; CA 35
2.0 mi
·
3 min
·
Half Moon Bay Road
4
Turn left onto CA 35
0.9 mi
·
1 min
·
Skyline Boulevard
Use the left lane.
5
Turn right onto CA 35
468 ft
·
14 sec
·
Bunker Hill Drive
Use the straight / right lanes.
6
Take the ramp
0.3 mi
·
33 sec
Toward I 280 North, CA 35 North: San Francisco
Use the straight lane.
7
Merge onto I 280; CA 35
8.2 mi
·
9 min
·
Junipero Serra Freeway
Use the straight / slight right lanes.
8
Take the exit
0.4 mi
·
25 sec
Exit 43B
Toward I 380 East: San Francisco International Airport
Use the straight / slight right lanes.
9
Continue on I 380
1.1 mi
·
1 min
·
Quentin L. Kopp Freeway
Use the straight / slight right lanes.
10
Take the exit
0.8 mi
·
1 min
Exit 6B
Toward US 101 North: San Francisco
11
Merge onto US 101
527 ft
·
6 sec
·
Bayshore Freeway
12
Take the exit
0.2 mi
·
31 sec
Exit 424
Toward South Airport Boulevard
Use the straight / slight right lanes.
13
Turn left onto South Airport Boulevard
0.2 mi
·
27 sec
·
South Airport Boulevard
Use the left / straight lanes.
14
Turn left onto South Airport Boulevard
0.2 mi
·
23 sec
·
South Airport Boulevard
Use the left lane.
15
Continue on Airport Boulevard
0.4 mi
·
43 sec
·
Airport Boulevard
16
Arrive at destination
Airport Boulevard
Fuel & Cost
Regular Gas
$5.59 one way
$11.17 round trip
$5.84/gal
25.4 MPG avg
9 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $6.02 | $5.76 | $11.51 |
| premium | $6.18 | $5.91 | $11.82 |
| diesel | $5.61 | $5.37 | $10.73 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$6
Estimated CO2 emission: 8.5 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $3 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 7.3 | 0 | $2.55 | $1.17 |
| Efficient EV | 6.1 | 0 | $2.13 | $0.97 |
| EV Truck/SUV | 9.7 | 0 | $3.40 | $1.56 |
Gas CO2
9 kg
EV CO2
3 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Destination
South San Francisco, CA
Morning in South San Francisco on Thursday
Local time
11:03 AM
PDT
Current temp
66°F
Unavailable
Live forecast
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
14 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
37m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from Grabtown, CA to South San Francisco, CA covers 24.3 miles and takes about 37m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Junipero Serra Freeway, Skyline Boulevard, Tunitas Creek Road. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 12.1 miles from Grabtown, CA. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $5.59 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Leave by 9 AM and you'll arrive before lunch. Even a 4 PM departure gets you there before dark in summer.
This is a short but busy drive. With 12 decision points packed into just 24.3 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 37m.
The main spots that need attention: at 11.5 miles (CA 35 / Skyline Boulevard): Lane positioning matters here; at 12.4 miles (CA 35 / Bunker Hill Drive): Lane positioning matters here; at 12.5 miles: Lane positioning matters here. Multiple destination signs - pick the right one.
The route from Grabtown, CA to South San Francisco, CA does not surface many named destination signs beyond the main corridor.
Yes. Nearby national parks include San Francisco Maritime National Historical Park, Golden Gate National Recreation Area and Rosie the Riveter WWII Home Front National Historical Park. There are 4 parks within detour distance of this route.
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