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Trip from Fontana, CA to Ontario, CA

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Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 21, 2026 · Editorial standards

Drive Time

20m

Distance

14.2 mi

23 km

Drive Score

7/10

Good drive

Same Day?

Yes, doable

Fuel Cost

$3

one way

EV Charging

Good

8 stations

Best Time to Leave

Save up to 6 min
4 AM
0h 18m ★
6 AM
0h 20m
8 AM
0h 24m
10 AM
0h 21m
12 PM
0h 21m
3 PM
0h 22m
5 PM
0h 24m
8 PM
0h 19m

Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.

Downtown Fontana, CA, CA

Fontana, CA

Wikimedia Commons

city located in south west San Bernardino County, California, United States

Ontario, CA

Wikimedia Commons

Trip Overview

If you are looking to travel from Fontana to Ontario, you are in for a quick 14.2-mile journey across the Pacific Coast region. Expect to spend about 22 minutes behind the wheel, making this a straightforward trip that fits easily into a single day. You will primarily navigate via Sierra Avenue, I-10 West, and the San Bernardino Freeway. With a fuel budget of just $2, the drive is highly economical for those needing to cross between these two California cities. Since this is a short local transit, there is no need to worry about overnight accommodations or complicated scheduling. It is a practical, no-fuss connection that serves as a simple transition between these neighboring urban hubs.

Main Roads

Road Distance Duration
San Bernardino Freeway 7 mi 8m
Holt Boulevard 2.7 mi 4m
I-10 Metro ExpressLanes 1.7 mi 1m
Sierra Avenue 1.6 mi 2m
Merrill Avenue <0.1 mi <1m
Longest stretch: San Bernardino Freeway — 7 mi, about 8m

Turn-by-Turn Driving Directions

Step-by-step road directions between Fontana, CA and Ontario, CA.

1

Start on Merrill Avenue

205 ft · 9 sec · Merrill Avenue
2

Turn left onto Sierra Avenue

1.6 mi · 2 min · Sierra Avenue
Use the left lane.
3

Take the ramp

0.3 mi · 45 sec
Toward I 10 West: Los Angeles Use the right lane.
4

Merge onto I 10

5.8 mi · 6 min · San Bernardino Freeway
Use the straight / slight right lanes.
5

Keep slight left at fork onto I 10 EXPR

1.7 mi · 1 min · I-10 Metro ExpressLanes
6

Take the exit

360 ft · 8 sec
Use the straight / slight right lanes.
7

Merge onto I 10

1.2 mi · 1 min · San Bernardino Freeway
8

Take the exit

0.7 mi · 1 min
Toward Holt Boulevard Use the slight right lane.
9

Keep slight left at fork

0.1 mi · 17 sec
10

Continue on Holt Boulevard

2.7 mi · 4 min · Holt Boulevard
Use the straight lane.
11

Arrive at destination

Holt Boulevard

Heads-up: tricky spots

5 of 8

5 decision points cluster between mile 0 and 10.7 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.

6
0 mi into trip | ~0m in | Sierra Avenue

Turn left onto Sierra Avenue

Lane positioning matters here

Use the left lane.
5
1.7 mi into trip | ~2m in

Take the ramp toward I 10 West: Los Angeles

Lane positioning matters here

Use the right lane. Toward I 10 West: Los Angeles
5
2 mi into trip | ~3m in | I 10 / San Bernardino Freeway

Merge onto I 10 / San Bernardino Freeway

Merge point - match speed before joining. Lane positioning matters here

Use the straight / slight right lanes.
5
9.5 mi into trip | ~12m in

Take the exit

Exit ramp - move to the correct lane early. Lane positioning matters here

Use the straight / slight right lanes.
6
10.7 mi into trip | ~13m in

Take the exit toward Holt Boulevard

Exit ramp - move to the correct lane early. Lane positioning matters here

Use the slight right lane. Toward Holt Boulevard

Fuel & Cost

Regular Gas

$3.26 one way

$6.53 round trip

$5.84/gal 25.4 MPG avg 5 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $6.02 $3.36 $6.73
premium $6.18 $3.45 $6.91
diesel $5.61 $3.14 $6.27

No toll roads detected on this route.

Drive Cost (one way)

Fuel

$3

Estimated CO2 emission: 5 kg one way. Prices: EIA weekly data, 2026-04-13.

Driving Electric?

About $1 in charging · 0 stops · 60% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 4.3 0 $1.49 $0.68
Efficient EV 3.6 0 $1.24 $0.57
EV Truck/SUV 5.7 0 $1.99 $0.91

Gas CO2

5 kg

EV CO2

2 kg (60% 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.

Forecast as of Apr 14, 2026

Origin

Fontana, CA

Late night in Fontana on Tuesday

Local time

1:46 AM

PDT

Current temp

72°F

Sunny

SW 5 to 15 mph 0% chance Live forecast

Destination

Ontario, CA

Late night in Ontario on Tuesday

Local time

1:46 AM

PDT

Current temp

53°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

19 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

20m on the road

The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.

Weather data from the National Weather Service. Conditions may change; check closer to your travel date.

What kind of drive is this?

Expect a turn-heavy local drive as you make your way from Fontana to Ontario. Because the route relies on city streets and local connectors, the highway share is effectively 0%, meaning you will spend your time navigating surface-level traffic rather than cruising long stretches of interstate. You won't encounter any long, uninterrupted highway segments here, as your longest stretch is 0 miles on Sierra Avenue. The experience is defined by frequent turns rather than sustained speeds. You should be prepared for a stop-and-go environment that requires your full attention on local intersections and arterial roads.

61% highway — fuel and pacing are the main things to plan.
11 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 7 mi on San Bernardino Freeway.

How Hard Is This Drive?

9/10

This is a straightforward highway drive that stays mostly on San Bernardino Freeway and Holt Boulevard. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes early in the drive near Sierra Avenue.

Driving Effort 9/10

Focused - lots of decisions in a short distance, but it is over quickly

Balances navigation complexity with total wheel time.

This is a short but busy drive. With 8 decision points packed into just 14.2 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 20m.

Where does it get tricky?

The main spots that need attention: near the start (Sierra Avenue): Lane positioning matters here; at 1.7 miles: Lane positioning matters here; at 2 miles (I 10 / San Bernardino Freeway): Merge point - match speed before joining. Lane positioning matters here.

About the Cities

Starting in Fontana, CA

Full guide →

Fontana is a city in San Bernardino County in Southern California.

Arriving in Ontario, CA

Full guide →

Ontario is in San Bernardino County and the Southern California region, more than 35 miles (50 km) east of Los Angeles. From a traveler's perspective, Ontario is noteworthy mainly as the home of a large mall and the Ontario International Airport, a less crowded alternative to Los Angeles International Airport (LAX) and the main airport serving the Inland Empire.

Top landmarks

  • Frankish Building — building in Ontario, United States of America
  • Ontario State Bank Block — bank building in Ontario, California

City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).

Who Is This Route For?

Weekend Trip

Doable as a same-day drive at 20m. Total distance: 14.2 miles.

Family Friendly

Moderate complexity with 0 natural rest stops along the way.

Solo Traveler

20m drive, comfortable solo distance.

EV Driver

0 DC fast chargers along the route. Coverage: unknown.

First-Time Driver

Mostly highway driving (61%). Some complex stretches to watch for.

Frequently Asked Questions

The longest stretch is about 7 miles on San Bernardino Freeway. The full list of main roads is in the Roads section above.

It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Ontario, CA before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.

Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.

The main spots that need attention: near the start (Sierra Avenue): Lane positioning matters here; at 1.7 miles: Lane positioning matters here; at 2 miles (I 10 / San Bernardino Freeway): Merge point - match speed before joining. Lane positioning matters here.

Yes. A round trip is manageable in a single day if you plan a break at Ontario, CA before heading back.

How this page is built

Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, and EIA for fuel prices. See our methodology for refresh cadence and limitations.

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Explore more options from Fontana, CA or browse trips ending in Ontario, CA.

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