Flight
Driving
Seattle to St. Louis
Updated: 28 May 2026
The trip from Seattle to St. Louis covers about 3,200 kilometers. The most practical way to travel is by flight, which takes about 4 hours. Driving takes about 30 hours via I-90 and I-70. Both are good options depending on your time and budget. Flights are available from Seattle-Tacoma International Airport (SEA) to St. Louis Lambert International Airport (STL).
Total Distance: 3,200 km driving distance; 2,700 km straight-line air distance.
Fastest Way
Flying is the fastest, taking about 4 hours.
Cheapest Way
Flying is often cheaper than driving when considering fuel and time.
Compare Seattle to St. Louis Routes
|
Direct
|
Direct
|
|
|---|---|---|
| Duration | 4 hours | 30 hours |
| Avg Price | $250 - $500 | $350 - $600 in fuel |
| Operator | Alaska Airlines | Personal Vehicle |
| Route | SEA to STL | I-90 E to I-70 E |
| Tip | Direct flights are frequent and affordable. | The drive is very long; plan for multiple overnight stops. |
Travel Tips
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TrafficAvoid driving during rush hour in St. Louis.
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WeatherBring layers, as the weather can change quickly.
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DiningSt. Louis has a growing food scene.
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ParkingParking in downtown St. Louis is generally easy.
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NavigationI-90 and I-70 are the main highways to follow.
Safety Tips
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City SafetyBe aware of your surroundings in crowded areas.
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WildlifeBe alert for deer on rural roads.
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EmergencyKeep a basic emergency kit in your vehicle.
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FatigueThe drive is very long; take breaks every 3 hours.
People Also Ask
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Is the flight better than driving?The flight is much faster and often cheaper.
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Are there trains?Yes, but it takes much longer than flying or driving.
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How long is the drive?The drive takes approximately 30 hours.
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What is the best route?I-90 and I-70 are the most efficient routes.
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Is St. Louis worth visiting?Yes, it is a vibrant city with great parks and culture.
Quick Info
- From Seattle, Washington, United States
- To St. Louis, Missouri, United States
-
Modes
Best Time to Travel
May to September for pleasant weather.
Things to Do in St. Louis
1
Gateway Arch
Visit the iconic monument.
2
St. Louis Zoo
Explore the zoo.
3
Forest Park
Enjoy the park.
4
City Museum
Visit the unique museum.
Tags
Seattle to St. Louis
flights to St. Louis
driving to Missouri
I-90 to I-70
Seattle travel
Missouri road trip
best way to St. Louis
distance Seattle to St. Louis
