Flight
Driving
Westminster to St. Louis
Updated: 30 May 2026
The journey from Westminster to St. Louis spans approximately 1,380 kilometers via Interstate 70 East. Driving takes roughly 13 hours through the plains of Kansas and Missouri. Alternatively, you can drive to Denver International Airport and take a direct flight to St. Louis Lambert International Airport. The flight duration is approximately 2 hours. This route is a classic cross-country corridor connecting the Rockies to the Mississippi River.
Total Distance: 1,380 km driving, 1,250 km air distance.
Fastest Way
Flight from Denver International Airport takes 2 hours.
Cheapest Way
Driving is the cheapest for groups of two or more people.
Compare Westminster to St. Louis Routes
|
Direct
|
Direct
|
|
|---|---|---|
| Duration | 2 hours | 13 hours |
| Avg Price | $200-$400 | $150-$250 in fuel |
| Operator | Southwest Airlines | Personal Vehicle |
| Route | DEN to STL | I-70 East through Kansas City |
| Tip | Book at least three weeks in advance for lower fares. | Check for construction delays near Topeka before departing. |
Travel Tips
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Toll RoadsKansas I-70 has toll sections; keep a credit card or transponder ready.
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Time ZoneYou will cross from Mountain Time to Central Time during your drive.
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Airport ParkingUse off-site parking lots near DEN to save on daily rates.
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HydrationDrink plenty of water as the high plains are very dry.
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Rest StopsPlan stops in Salina, Kansas, for fuel and food variety.
Safety Tips
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WeatherWatch for severe thunderstorms in the plains during spring.
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FatigueSwitch drivers every 4 hours to maintain alertness on I-70.
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Vehicle CheckEnsure your tires are inflated correctly for high-speed highway driving.
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Emergency KitCarry a basic roadside kit including jumper cables and water.
People Also Ask
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Is I-70 safe in winter?It can be hazardous due to snow and ice in Colorado and Kansas.
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Are there trains to St. Louis?Amtrak serves St. Louis, but there is no direct rail from Denver.
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How long is the drive?Approximately 13 hours of pure driving time.
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What is the best airport?St. Louis Lambert International Airport is the primary hub.
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Do I need a car in St. Louis?A car is recommended for visiting attractions outside the downtown core.
Quick Info
- From Westminster, Colorado, United States
- To St. Louis, Missouri, United States
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Modes
Best Time to Travel
May to September for clear weather on the I-70 corridor.
Things to Do in St. Louis
1
Gateway Arch
Visit the iconic 630-foot monument in downtown St. Louis. It commemorates the westward expansion of the United States.
2
Forest Park
Explore one of the largest urban parks in the country. It houses the St. Louis Zoo and Art Museum.
3
City Museum
Experience a unique playground built from repurposed industrial objects. It is located in a former shoe factory.
4
Anheuser-Busch Brewery
Take a historic tour of the famous brewing facility. It offers insights into the city's industrial heritage.
Tags
Westminster to St. Louis drive
flights from Denver to St. Louis
I-70 road trip
St. Louis travel guide
Colorado to Missouri travel
cheapest way to St. Louis
driving I-70
St. Louis transport options
