Flight
Driving
St. Louis to Seattle
Updated: 28 May 2026
The journey from St. Louis to Seattle covers approximately 3,300 kilometers. The most direct driving route is via I-80 West to I-90 West, taking about 32 hours. Direct flights are available from St. Louis Lambert International Airport to Seattle-Tacoma International Airport, lasting about 4.5 hours. This route takes you across the heart of the American West and into the Pacific Northwest region.
Total Distance: 3,300 km driving, 2,800 km air distance.
Fastest Way
Flight, with a total travel time of about 6.5 hours including airport transit.
Cheapest Way
Flight, with competitive pricing on this popular route.
Compare St. Louis to Seattle Routes
|
Direct
|
Direct
|
|
|---|---|---|
| Duration | 4 hours 30 mins | 32 hours |
| Avg Price | $250-$500 | $400-$600 fuel |
| Operator | Alaska, Southwest | Personal Vehicle |
| Route | STL to SEA. | I-80 W to I-90 W. |
| Tip | Book in advance for better rates. | The drive is very long; plan for multiple overnight stops. |
Travel Tips
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TrafficTraffic in Seattle can be heavy; use public transit or walk.
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WeatherBe prepared for frequent rain and cool temperatures.
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AirportSEA is located near the city; allow time for the commute.
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DiningSeattle has a world-class food scene; try the fresh seafood and coffee.
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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 downtown area.
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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 Seattle?Yes, Amtrak's Empire Builder runs from Chicago, but not directly from St. Louis.
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How long is the drive?The drive is approximately 32 hours.
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What is the best airport?Seattle-Tacoma International (SEA) 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 Seattle, Washington, United States
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Modes
Best Time to Travel
Summer for pleasant weather and outdoor activities.
Things to Do in Seattle
1
Space Needle
An iconic observation tower offering panoramic views of the city.
2
Pike Place Market
A historic market known for its fresh produce, seafood, and local crafts.
3
Museum of Pop Culture
A unique museum dedicated to contemporary popular culture.
4
Chihuly Garden and Glass
A stunning exhibition of glass art by Dale Chihuly.
Tags
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I-80 to I-90 route
Seattle travel guide
St. Louis to Seattle distance
fastest way to Seattle
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