Driving
Fort Smith to Saint Louis
Updated: 31 May 2026
The drive from Fort Smith to Saint Louis covers approximately 650 kilometers. You will head east on I-40 and then north on I-55. Expect a driving time of about 6.5 hours. This is a popular route for both business and leisure travelers. It is a straightforward drive across the border into Missouri.
Total Distance: 650 km driving distance; 580 km straight-line air distance.
Fastest Way
Driving is the fastest method.
Cheapest Way
Driving is the most affordable way to reach Saint Louis.
Compare Fort Smith to Saint Louis Routes
Driving
Direct
Duration
6.5 hours
Avg Price
$90-$100 in fuel
Operator
Personal Vehicle
Route
I-40 E to I-55 N
This is a quick and easy drive.
Travel Tips
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TrafficAvoid rush hour.
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Rest StopsUse the state-run rest areas.
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NavigationUse a GPS for the route.
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FoodTry the local food in Saint Louis.
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ParkingUse parking garages.
Safety Tips
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WeatherBe aware of storms.
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FatigueTake breaks if needed.
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Vehicle CheckCheck your car before the trip.
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CommunicationKeep your phone charged.
People Also Ask
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Is Saint Louis safe?Yes, it is a safe city.
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How long is the drive?About 6.5 hours.
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Are there tolls?No, there are no tolls.
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What is the best route?I-40 to I-55.
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Can I fly?No, it is too close.
Quick Info
- From Fort Smith, Arkansas, United States
- To Saint Louis, Missouri, United States
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Modes
Best Time to Travel
Spring or Fall for the best weather.
Things to Do in Saint Louis
1
Gateway Arch
Visit the iconic monument.
2
Saint Louis Zoo
See the animals.
3
Saint Louis Art Museum
See the art.
4
Forest Park
Enjoy the park.
Tags
Fort Smith to Saint Louis drive
I-40 to I-55 route
Arkansas to Missouri road trip
driving to Saint Louis
Fort Smith travel
Saint Louis travel guide
best route to Saint Louis
interstate travel
