Flight
Driving
Fontana to St. Louis
Updated: 28 May 2026
The route from Fontana to St. Louis spans approximately 1,800 miles. Flying is the most efficient option, typically connecting through hubs like Dallas or Denver. Driving follows the historic I-40 corridor before transitioning to I-44. You will traverse the desert Southwest, the plains of Oklahoma, and the rolling hills of the Ozarks. St. Louis serves as the gateway to the West, making this a journey of historical significance.
Total Distance: 2,900 km driving distance; 2,500 km straight-line air distance.
Fastest Way
Flight from Ontario (ONT) to St. Louis (STL) takes about 6 hours.
Cheapest Way
Driving is generally the most economical for families or groups.
Compare Fontana to St. Louis Routes
|
Connecting
|
Direct
|
|
|---|---|---|
| Duration | 6 hours | 27 hours |
| Avg Price | $200-$450 | $450-$750 |
| Operator | Southwest Airlines | Personal Vehicle |
| Route | ONT to STL via LAS or PHX. | I-15 N to I-40 E to I-44 E. |
| Tip | Southwest offers two free checked bags, which is helpful for long trips. | I-44 is a scenic route through the Ozarks. |
Travel Tips
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Airport AccessSt. Louis Lambert International Airport is well-connected by MetroLink.
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DiningTry the famous St. Louis-style pizza and toasted ravioli.
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TrafficAvoid downtown St. Louis during rush hour to save time.
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WeatherBe prepared for humidity in the summer months.
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BookingBook your flight at least three weeks in advance for better rates.
Safety Tips
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Road SafetyStay alert on I-44, as it can be busy with truck traffic.
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Personal SafetyResearch neighborhoods before booking your hotel.
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Vehicle CheckEnsure your brakes are in top condition for the Ozark hills.
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Emergency InfoKeep a list of local emergency contacts in your glove box.
People Also Ask
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Is there a train?Amtrak's Texas Eagle stops in St. Louis, but it is not a direct route from Fontana.
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How long is the drive?Approximately 27 hours of driving time.
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What is the best airport?St. Louis Lambert International (STL) is the primary hub.
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Is it safe to drive?Yes, the route is well-maintained and heavily traveled.
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What is the best time to visit?May or October for mild weather.
Quick Info
- From Fontana, California, United States
- To St. Louis, Missouri, United States
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Modes
Best Time to Travel
Spring and Fall provide the most comfortable temperatures for sightseeing.
Things to Do in St. Louis
1
Gateway Arch
The iconic monument representing the westward expansion of the United States. You can take a tram to the top for panoramic views.
2
Forest Park
One of the largest urban parks in the country, housing the zoo, art museum, and science center.
3
City Museum
An eclectic playground built from repurposed industrial materials. It is a unique experience for all ages.
4
Anheuser-Busch Brewery
Take a tour of the historic brewery and learn about the city's deep brewing heritage.
Tags
Fontana to St. Louis
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driving to Missouri
I-40 route
St. Louis travel guide
California to St. Louis
best way to travel
Inland Empire travel
