Key Largo
Key Largo
St. Louis
St. Louis
Flight Driving

Key Largo to St. Louis

Updated: 28 May 2026

The journey from Key Largo to St. Louis covers approximately 2,000 kilometers. The most efficient way to travel is by flying from Miami International Airport to St. Louis Lambert International Airport. If you choose to drive, you will follow I-75 North to I-24 West and then I-57 North. This route is a major interstate corridor. Expect a transition from the coastal Florida climate to the rolling plains of the Midwest.

Total Distance: 2,000 km driving distance; 1,750 km straight-line air distance.
Fastest Way
Flight from Miami International Airport to St. Louis Lambert International Airport.
Cheapest Way
Driving is the most cost-effective for families or groups.
Compare Key Largo to St. Louis Routes
Flight
Direct
Driving
Direct
Duration 3 hours 19 hours
Avg Price $200-$450 $350-$500 in fuel
Operator Southwest Airlines Personal Vehicle
Route MIA to STL US-1 to I-75 N to I-24 W to I-57 N
Tip Check for direct flights from Fort Lauderdale (FLL) as an alternative to MIA. I-57 is the primary artery; watch for heavy traffic in the St. Louis metro area.
Travel Tips
  • Airport Transit
    The MetroLink light rail provides transport from the airport to downtown St. Louis.
  • Traffic Planning
    Avoid the I-270 loop during morning and evening rush hours.
  • Booking
    Book your flight at least 21 days in advance for better pricing.
  • Packing
    Bring comfortable walking shoes for exploring the city's many districts.
  • Navigation
    Use a real-time traffic app to navigate around construction on I-57.
Safety Tips
  • Winter Driving
    St. Louis can experience icy conditions; ensure your vehicle is winter-ready.
  • Vehicle Prep
    Check your tire pressure before starting the long drive north.
  • City Safety
    Stay aware of your surroundings when walking in downtown areas at night.
  • Emergency Kit
    Keep a basic roadside kit in your car for long-distance travel.
People Also Ask
  • Is there a direct train to St. Louis?
    Amtrak's Texas Eagle and Lincoln Service lines serve St. Louis, but there is no direct rail from Florida.
  • How long is the drive to St. Louis?
    The drive takes approximately 19 hours of pure transit time.
  • What is the best airport for St. Louis?
    St. Louis Lambert International Airport (STL) is the main hub.
  • Is I-57 a good route?
    Yes, it is the most direct interstate highway connecting the South to Missouri.
  • What should I see in St. Louis?
    The Gateway Arch and the City Museum are top-rated attractions.
Quick Info
  • From Key Largo, Florida, United States
  • To St. Louis, Missouri, United States
  • Modes
Best Time to Travel

May to September for warm weather and outdoor activities in St. Louis.

Things to Do in St. Louis
1
Gateway Arch National Park
Visit the iconic monument that symbolizes the gateway to the American West.
2
St. Louis Zoo
Explore one of the best zoos in the country, located in Forest Park.
3
Forest Park
Enjoy this massive urban park, which houses museums, a zoo, and beautiful gardens.
4
City Museum
Experience this unique, interactive playground built from repurposed industrial materials.
Tags
Key Largo to St. Louis travel flights to St. Louis from Florida driving to St. Louis from Key Largo I-57 road trip St. Louis travel guide Florida to Missouri travel best way to get to St. Louis traveling from the Keys