Flight
Round Rock to St. Louis
Updated: 28 May 2026
The distance from Round Rock to St. Louis is approximately 1,500 kilometers. The most practical way to travel is to drive 30 minutes to Austin-Bergstrom International Airport (AUS) and fly to St. Louis. Direct flights take about 2.5 hours. St. Louis is known for the Gateway Arch, its rich history, and vibrant cultural scene. Plan for significant time differences and adjust your schedule accordingly upon arrival.
Total Distance: 1,500 km air distance.
Fastest Way
A direct flight from AUS to STL takes 2.5 hours.
Cheapest Way
Booking a flight at least one month in advance is the most cost-effective method.
Compare Round Rock to St. Louis Routes
Flight
Direct
Duration
2 hours 30 mins
Avg Price
$110 - $300
Operator
Southwest Airlines
Route
AUS to STL
Southwest offers convenient direct flights from Austin to St. Louis.
Travel Tips
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Public TransitUse the MetroLink system to navigate the city; it is efficient and covers most areas.
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WalkingSt. Louis is a growing city; some areas are walkable, but a car is often helpful.
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WeatherSt. Louis has hot summers; dress in light, breathable clothing.
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Airport TransitThe MetroLink connects the airport to downtown St. Louis.
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BookingBook flights in advance to secure the best rates.
Safety Tips
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Crowd AwarenessStay alert in crowded tourist areas.
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Personal BelongingsKeep your bag secure in crowded public spaces.
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EmergencyDial 911 for any emergency services.
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Night SafetyStick to well-lit, populated areas when walking at night.
People Also Ask
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Is there a train?Amtrak exists, but it takes over 30 hours and is not practical for most.
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How long is the flight?Approximately 2.5 hours for a direct flight.
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Which airport is best?STL is the only major airport serving the city.
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Do I need a car?A car is helpful for exploring the surrounding areas, but not necessary for downtown.
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What is the best time to visit?Spring and autumn offer the most pleasant weather.
Quick Info
- From Round Rock, Texas, United States
- To St. Louis, Missouri, United States
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Modes
Best Time to Travel
April to June or September to October for mild weather.
Things to Do in St. Louis
1
Gateway Arch
Visit this iconic monument and take a tram to the top for incredible views.
2
St. Louis Zoo
Explore this world-class zoo, which is free to the public.
3
Forest Park
Visit this massive park, which features museums, a zoo, and beautiful walking trails.
4
City Museum
Explore this unique, interactive museum that is fun for all ages.
Tags
Round Rock to St. Louis
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AUS to STL
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St. Louis travel guide
Round Rock to Midwest
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