Origin
Greenfield, CA
Night in Greenfield on Wednesday
Local time
9:42 PM
PDT
Current temp
77°F
Unavailable
Live forecast
Trip from Greenfield, CA to Fontana, CA
Last recalculated Apr 16, 2026
Drive Time
2h 53m
Distance
148.7 mi
239 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$34
one way
Best Time to Leave
4 AM
2h 43m
★
6 AM
2h 54m
8 AM
3h 16m
10 AM
3h 2m
12 PM
2h 59m
3 PM
3h 3m
5 PM
3h 15m
8 PM
2h 47m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Greenfield, CA
Wikimedia Commons
Fontana, CA
Wikimedia Commons
Trip Overview
Spanning 148.7 miles, this route from Greenfield to Fontana takes approximately 2 hours and 53 minutes to complete. You will navigate a mix of local roads and major arteries, including South Union Avenue, Highway 99, and the Golden State Freeway. Given the manageable duration, this journey is perfectly suited as a simple one-day trip, requiring no overnight stays. Budget roughly $34 for fuel to cover the distance between these two Pacific Coast locations. It is a straightforward transit that prioritizes utility over leisure, making it a reliable choice for travelers looking to move efficiently between these points.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
74.3 miles from Greenfield, CA
A natural place for your longest stop of the day , about 1h 26m into the drive .
Drive Character
Expect a turn-heavy local drive rather than a monotonous interstate cruise, as this route requires more active attention than a standard highway trek. You will be navigating a variety of surfaces, transitioning from local roads onto the 99 and the Golden State Freeway. Since the highway share is 0%, your focus will be split between smaller connectors and busier thoroughfares. The road’s personality is defined by these constant shifts in road type, keeping the driving experience engaging. Be prepared for a varied pace as you transition through the different segments of this 148.7-mile trek.
This route has more turning and local-road decision points than a simple highway run.
There are about 19 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
South Union Avenue is one of the defining roads on this drive.
How Hard Is This Drive?
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. Navigation is very simple - set it and forget it for most of the drive.
Route Complexity
1/10
Very easy - short and simple to drive
The drive from Greenfield, CA to Fontana, CA is easy. At 2h 53m with 0% highway, most drivers will find it relaxed and low-stress.
Where does it get tricky?
This route does not have any notably tricky sections. Most of the drive from Greenfield, CA to Fontana, CA is straightforward, with well-signed roads and simple exits.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| South Union Avenue | — | — |
| 99 | — | — |
| Golden State Freeway | — | — |
| I 210 East | — | — |
| Foothill Freeway | — | — |
| Sierra Avenue | — | — |
| Merrill Avenue | — | — |
Some road-level metrics are being recalculated.
Longest stretch:
South Union Avenue
— detailed segment metrics are refreshing.
Turn-by-Turn Driving Directions
Step-by-step road directions between Greenfield, CA and Fontana, CA.
1
Start on the route
36 ft
·
5 sec
·
the route
2
Turn right onto South Union Avenue
0.1 mi
·
15 sec
·
South Union Avenue
3
Continue on South Union Avenue
6.7 mi
·
9 min
·
South Union Avenue
4
Take the ramp straight toward 99
0.5 mi
·
35 sec
·
99
5
Merge slight left onto Golden State Freeway
11 mi
·
11 min
·
Golden State Freeway
6
Keep slight left to continue on Golden State Freeway
58 mi
·
1 hr 6 min
·
Golden State Freeway
7
Keep slight left to continue on Golden State Freeway
2.0 mi
·
2 min
·
Golden State Freeway
8
Take the exit slight right toward I 210 East: Pasadena
0.3 mi
·
18 sec
·
I 210 East: Pasadena
9
Continue on Foothill Freeway
24 mi
·
28 min
·
Foothill Freeway
10
Keep slight right to continue on Foothill Freeway
19 mi
·
22 min
·
Foothill Freeway
11
Keep slight right to continue on Foothill Freeway
2.9 mi
·
3 min
·
Foothill Freeway
12
Keep slight right to continue on Foothill Freeway
1.4 mi
·
1 min
·
Foothill Freeway
13
Keep slight right to continue on Foothill Freeway
1.2 mi
·
1 min
·
Foothill Freeway
14
Keep slight right to continue on Foothill Freeway
1.8 mi
·
2 min
·
Foothill Freeway
15
Keep slight right to continue on Foothill Freeway
16 mi
·
18 min
·
Foothill Freeway
16
Take the exit slight right toward Sierra Avenue
0.3 mi
·
46 sec
·
Sierra Avenue
17
Turn right onto Sierra Avenue
3.0 mi
·
4 min
·
Sierra Avenue
18
Turn left onto Merrill Avenue
207 ft
·
4 sec
·
Merrill Avenue
19
Arrive at your destination
Trip Plan
To ensure a smooth journey, plan for at least one dedicated stop during your 2 hour and 53 minute transit. Since the route is turn-heavy, keeping your navigation system updated and alert is key to staying on track through local segments. Aim to depart outside of peak traffic hours to avoid potential congestion on the Golden State Freeway and Highway 99 sections. With a fuel budget of $34, filling your tank before you leave Greenfield will provide peace of mind for the duration of the trip. The short overall distance offers you plenty of flexibility to adjust your departure time based on your personal schedule.
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 74.3 miles from Greenfield, CA, or about 1h 26m into the drive.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 33 miles or 38m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 74.3 miles or 1h 26m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 2h 22m
Traffic, exits, and arrival timing usually matter more near Fontana, CA than in the middle of the route.
Before You Leave
+
Open the route before leaving Greenfield, CA so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Greenfield, CA
This is one driving day of about 148.7 miles and 2h 53m.
Your first comfortable stop window is around 33 miles from Greenfield, CA.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 74.3 mi from Greenfield, CA · 1h 26m into the drive
Mid-route town
Meal stop
74 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
Pacing Suggestions
Fuel and coffee
A short stop after about 33 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 74.3 miles from Greenfield, CA, which is a good place for a longer meal and fuel stop.
Arriving in Fontana, CA
The final approach into Fontana, CA usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Fontana, CA.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Fuel & Cost
Regular Gas
$34.18 one way
$68.36 round trip
$5.84/gal
25.4 MPG avg
52 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $6.02 | $35.22 | $70.44 |
| premium | $6.18 | $36.16 | $72.32 |
| diesel | $5.61 | $32.83 | $65.66 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$34
Meals
$25–$50
Total
$59–$84
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 52 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $16 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 44.6 | 0 | $15.61 | $7.14 |
| Efficient EV | 37.2 | 0 | $13.01 | $5.95 |
| EV Truck/SUV | 59.5 | 0 | $20.82 | $9.52 |
Gas CO2
52 kg
EV CO2
17 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
Fontana, CA
Night in Fontana on Wednesday
Local time
9:42 PM
PDT
Current temp
76°F
Unavailable
Live forecast
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
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
1 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
2h 53m 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 Greenfield, CA to Fontana, CA covers 148.7 miles and takes about 2h 53m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are South Union Avenue, 99, Golden State Freeway. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 74.3 miles from Greenfield, CA. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $34.18 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.
Plan about 1 meaningful break for fuel, food, or rest. A short stop every 2 to 3 hours is enough for this drive.
The drive from Greenfield, CA to Fontana, CA is easy. At 2h 53m with 0% highway, most drivers will find it relaxed and low-stress.
This route does not have any notably tricky sections. Most of the drive from Greenfield, CA to Fontana, CA is straightforward, with well-signed roads and simple exits.
The route from Greenfield, CA to Fontana, CA does not surface many named destination signs beyond the main corridor.
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