Flight
Driving
St. Louis to Washington
Updated: 28 May 2026
The journey from St. Louis to Washington, D.C. covers approximately 1,400 kilometers. The most direct driving route is via I-70 East to I-66 East, taking about 14 hours. Direct flights are available from St. Louis Lambert International Airport to Ronald Reagan Washington National Airport, lasting about 2.5 hours. This route takes you across the heart of the American Midwest and into the Mid-Atlantic region.
Total Distance: 1,400 km driving, 1,200 km air distance.
Fastest Way
Flight, with a total travel time of about 4.5 hours including airport transit.
Cheapest Way
Flight, with competitive pricing on this popular route.
Compare St. Louis to Washington Routes
|
Direct
|
Direct
|
|
|---|---|---|
| Duration | 2 hours 30 mins | 14 hours |
| Avg Price | $150-$400 | $170-$240 fuel |
| Operator | Southwest, American | Personal Vehicle |
| Route | STL to DCA. | I-70 E to I-66 E. |
| Tip | Book in advance for better rates. | The drive is long; plan for an overnight stop. |
Travel Tips
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TrafficTraffic in Washington, D.C. can be heavy; use public transit or walk.
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WeatherBe prepared for hot summers and cold winters.
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AirportDCA is located near the city; allow time for the commute.
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DiningWashington, D.C. has a world-class food scene; try the diverse international cuisine.
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NavigationUse a GPS as the city layout can be confusing.
Safety Tips
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DrivingStay alert for aggressive drivers on the freeways.
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ParkingUse secure parking garages in the city.
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EmergencyKeep water in your car during the summer.
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Personal SafetyStay in well-lit areas when exploring at night.
People Also Ask
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Is there a train to Washington, D.C.?Yes, Amtrak's Cardinal runs from Chicago, but not directly from St. Louis.
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How long is the drive?The drive is approximately 14 hours.
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What is the best airport?Ronald Reagan Washington National (DCA) is the primary hub.
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Are there tolls?There are some toll roads in the area.
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Is it safe to drive?Yes, but be prepared for long distances.
Quick Info
- From St. Louis, Missouri, United States
- To Washington, District of Columbia, United States
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Modes
Best Time to Travel
Spring for the cherry blossoms or autumn for pleasant weather.
Things to Do in Washington
1
National Mall
A large park featuring many of the city's most famous monuments and museums.
2
Smithsonian Museums
A collection of world-class museums, most of which are free to the public.
3
Lincoln Memorial
An iconic monument dedicated to the 16th President of the United States.
4
United States Capitol
The seat of the United States Congress.
Tags
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I-70 to I-66 route
Washington D.C. travel guide
St. Louis to Washington distance
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