Flight
Driving
Fontana to Denver
Updated: 28 May 2026
The journey from Fontana to Denver covers approximately 1,600 kilometers. Driving via I-15 North and I-70 East is the most direct route, taking about 15 to 17 hours. This is a scenic but challenging drive through the mountains. Alternatively, you can fly from Ontario International Airport (ONT) to Denver International Airport (DEN). This is a common route for business and leisure travel between the two states.
Total Distance: Driving distance 1,600 km, straight-line air distance 1,350 km.
Fastest Way
Flight from Ontario (ONT) to Denver (DEN) takes 2.25 hours.
Cheapest Way
Driving is usually the cheapest option for groups.
Compare Fontana to Denver Routes
|
Direct
|
Direct
|
|
|---|---|---|
| Duration | 2 hours 15 mins | 16 hours |
| Avg Price | $150 - $400 | $200 - $400 |
| Operator | United Airlines | Personal Vehicle |
| Route | ONT to DEN. | I-15 N to I-70 E. |
| Tip | Flights are very frequent and convenient. | The I-70 through the Rockies is beautiful but requires a well-maintained vehicle. |
Travel Tips
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TrafficThe I-70 can be very busy; check traffic reports before leaving.
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WeatherMountain weather is unpredictable; be prepared for snow even in spring.
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AltitudeDenver is at a high altitude; stay hydrated and take it easy.
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BookingBook your hotel in advance, especially during peak season.
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Local KnowledgeDenver is a very active city; enjoy the outdoors.
Safety Tips
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DrivingStay alert for sudden traffic stops on the I-70.
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VehicleCheck your car before the long drive, especially the brakes.
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EmergencyKeep a roadside emergency kit in your car.
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Cell ServiceExpect spotty cell service in remote mountain areas.
People Also Ask
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How long does it take to drive to Denver?It typically takes 16 hours, but can be longer with traffic and weather.
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Is there a train to Denver?No, there is no direct train service to Denver.
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What is the best time to leave for Denver?Early morning is the best time to avoid traffic.
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Are there flights from Ontario to Denver?Yes, several airlines offer direct flights.
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Is the I-70 safe?Yes, but it is a busy highway; drive defensively.
Quick Info
- From Fontana, California, United States
- To Denver, Colorado, United States
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Modes
Best Time to Travel
Summer or early Fall to avoid snow in the mountain passes.
Things to Do in Denver
1
Red Rocks Park and Amphitheatre
Visit this world-famous outdoor venue built into natural rock formations.
2
Denver Art Museum
Explore a vast collection of art in a stunning architectural building.
3
Denver Botanic Gardens
Enjoy a beautiful collection of plants in a peaceful setting.
4
Union Station
Visit this historic, renovated train station with shops and restaurants.
Tags
Fontana to Denver
Denver travel
driving to Denver
I-70 traffic
flights to Denver
Fontana transport
California to Colorado
Denver guide
