How far is Bonita, CA from Fontana, CA?
The driving distance from Bonita, CA to Fontana, CA is about 114.7 miles (184.6 km), with a travel time of about 02h 14m by car.
- The straight-line flight distance is about 101.8 miles (163.9 km).
- For a round trip, plan for roughly 04h 29m 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 02h 14m.
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.
Census-designated place in San Diego County, California, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Driving Route Map
The map below follows the saved road route between Bonita and Fontana.
Turn-by-Turn Driving Directions
Step-by-step road directions between Bonita and Fontana.
-
1
Start on Allen School Lane
23 m · 11 sec · Allen School Lane
-
2
Turn left onto Otay Lakes Road
1376 ft · 36 sec · Otay Lakes Road
-
3
At the end of the road, turn left onto Bonita Road
2 mi · 3 min · Bonita Road
-
4
Take the ramp slight right toward I 805 North
1641 ft · 40 sec
-
5
Merge slight left onto Jacob Dekema Freeway
6.3 mi · 7 min · Jacob Dekema Freeway
-
6
Take the exit slight right toward CA 15 North
1.5 km · 2 min
-
7
Merge slight left onto Escondido Freeway
7.9 mi · 9 min · Escondido Freeway
-
8
Keep slight right to continue on Escondido Freeway
1.3 km · 55 sec · Escondido Freeway
-
9
Continue on Semper Fi Highway
1.8 mi · 2 min · Semper Fi Highway
-
10
Continue on Escondido Freeway
3.1 mi · 4 min · Escondido Freeway
-
11
Continue on Tony Gwynn Memorial Freeway
4.6 mi · 5 min · Tony Gwynn Memorial Freeway
-
12
Continue on Escondido Freeway
5.9 mi · 7 min · Escondido Freeway
-
13
Keep slight left to continue on Escondido Freeway
6.9 mi · 8 min · Escondido Freeway
-
14
Continue on Avocado Highway
21.9 mi · 23 min · Avocado Highway
-
15
Continue on Escondido Freeway
6.3 mi · 7 min · Escondido Freeway
-
16
Take the exit slight right toward I 215
1510 ft · 18 sec
-
17
Continue on Escondido Freeway
34.3 mi · 40 min · Escondido Freeway
-
18
Take the exit slight left
5 mi · 6 min
-
19
Take the exit slight right toward Valley Way
1006 ft · 31 sec
-
20
Turn right onto Valley Way
1948 ft · 35 sec · Valley Way
-
21
Continue on Armstrong Road
2679 ft · 55 sec · Armstrong Road
-
22
Turn left onto Sierra Avenue
5.1 mi · 8 min · Sierra Avenue
-
23
Turn right onto Merrill Avenue
63 m · 4 sec · Merrill Avenue
-
24
Arrive at your destination
0 m · 1 sec · Merrill Avenue
Car Route Details
A richer read on the saved driving route between Bonita and Fontana.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Escondido Freeway
Continue on Escondido Freeway
34.3 mi · 00h 40m
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.
Sunny leaving Bonita and Clear near Fontana.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Bonita to Fontana?
The road trip is about 114.7 miles (184.6 km) and usually takes 02h 14m 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?
Rainbow is a useful midpoint, sitting about 57.4 miles from Bonita and 57.2 miles from Fontana.
How much longer is the road route than the straight-line distance?
The direct path is about 101.8 miles (163.9 km), while the road route adds roughly 12.9 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 2:00 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $23.36 one way or $46.73 round trip. Estimated CO2 is about 36 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Bonita and Clear near Fontana.
Stop Ideas Near Rainbow
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City of Wildomar
Superior Court of California, County of Riverside - Southwest Justice Center
Vista Civic Center
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Rainbow.
Oceanside Transit Center
Sun City, California
Carlsbad Village station
Carlsbad Poinsettia, CA
Flight Path Map
This map shows the direct air route between Bonita and Fontana. Straight-line distance: 101.82 mi (163.87 km).
#1 Bonita
Census designated place
| Population | 12,538 |
| Coordinates | 32.6578300, -117.0300300 |
| Altitude | 36 |
| Country | United States |
#2 Fontana
The second most populous city in San Bernardino County, California.
| Population | 216,173 |
| Coordinates | 34.0922300, -117.4350500 |
| Altitude | 377 |
| Country | United States |
End: Fontana (-117.43505, 34.09223)
Estimated Travel Time
Distance: 185 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 49m |
| 40 mph (64.37 km/h) | 02h 52m |
| 50 mph (80.47 km/h) | 02h 17m |
| 60 mph (96.56 km/h) | 01h 54m |
| 70 mph (112.65 km/h) | 01h 38m |
| 80 mph (129 km/h) | 01h 25m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $23.36 | $46.73 |
| Mid-grade | $6.07 | $24.57 | $49.13 |
| Premium | $6.24 | $25.28 | $50.57 |
| Diesel | $7.57 | $30.65 | $61.29 |
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 15, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.