Driving
Merriam to St. Louis
Updated: 30 May 2026
The drive from Merriam to St. Louis is approximately 400 km. You will travel east on I-70. The journey takes about 4 hours of driving time. This is a straightforward drive across the Midwest.
Total Distance: 400 km driving, 380 km air distance.
Fastest Way
Driving takes 4 hours, which is the most efficient option.
Cheapest Way
Driving is the most cost-effective way to reach St. Louis.
Compare Merriam to St. Louis Routes
Driving
Direct
Duration
4 hours
Avg Price
$40-$60 in fuel
Operator
Personal Vehicle
Route
I-70 E.
Expect heavy traffic during rush hours.
Travel Tips
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TrafficAvoid rush hours.
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ParkingUse public garages.
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NavigationUse GPS.
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BookingBook hotels in advance.
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Public TransitMetroLink is available.
Safety Tips
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TrafficBe aware of other drivers.
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WeatherBe aware of potential weather changes.
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Vehicle CheckCheck your car regularly.
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Emergency KitKeep supplies in your car.
People Also Ask
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Is there a train?No direct train.
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How long is the drive?About 4 hours.
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Are there tolls?No.
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Best time to visit?Spring and fall are best.
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Is it safe?Yes, it is a standard interstate route.
Quick Info
- From Merriam, Kansas, United States
- To St. Louis, Missouri, United States
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Modes
Best Time to Travel
Spring or Fall for mild weather.
Things to Do in St. Louis
1
Gateway Arch
The iconic landmark in St. Louis.
2
Forest Park
A large park in St. Louis with museums and a zoo.
3
Merriam Marketplace
A local market in Merriam.
4
City Museum
A unique museum in St. Louis.
Tags
Merriam to St. Louis
driving to Missouri
I-70 route
Kansas to St. Louis
road trip guide
travel time Merriam
St. Louis tourism
midwest travel
