How Far is St. Louis from Chicago? – The distance from Chicago to St. Louis is approximately 262 miles (422 km) as the crow flies. By car it’s about 296 miles (476 km) and takes roughly 5 hours via I-55. Nonstop flights take about 1 hour in the air (total door-to-door 3.5–4.5 hours). The Amtrak Lincoln Service train covers the route in about 5 hours (fastest ~4 hours 55 minutes) with multiple daily departures.
Whether you’re planning a quick business trip, family getaway, or classic Midwest road trip, this guide breaks down every practical option with current information from trusted sources.
Straight-Line Distance Between Chicago and St. Louis
The shortest distance “as the crow flies” between downtown Chicago and downtown St. Louis is 262 miles (422 km or 228 nautical miles). This measurement comes from standard geographic calculators and represents the direct geographic separation.
This air distance helps explain why flights are so short and why the Amtrak route is relatively efficient compared to many other U.S. city pairs.
Helpful Resources for Distance & Mapping
- Travelmath – Exact straight-line and driving distance calculator
- Rome2Rio – Multi-modal overview with maps
- Google Maps – Interactive distance and route visualization
- Air Miles Calculator – Air and driving distance between major airports (ORD–STL)
Driving from Chicago to St. Louis: Distance, Time & Best Route
The most popular way to travel between these two cities is by car. The standard route follows I-55 South for the majority of the trip.
- Driving distance: 296–297 miles (476 km)
- Typical driving time: 4 hours 58 minutes to about 5 hours 30 minutes without heavy traffic
- Main route: I-55 S (passes through Joliet, Bloomington-Normal, and Springfield, IL)
Traffic is usually heaviest leaving the Chicago area (especially around Joliet) and can add 30–60 minutes during rush hours or holidays. The route is mostly flat interstate driving and is considered straightforward for most drivers.
Helpful Resources for Driving
- Google Maps – Live traffic, construction, and turn-by-turn directions
- Rome2Rio – Driving time and cost estimates
- Travelmath – Driving distance, time, and cost calculator
- GasBuddy – Find the cheapest fuel stops and estimate total trip cost
- Illinois Department of Transportation (IDOT) – Road conditions and construction updates
Flying from Chicago to St. Louis: Flight Duration and Options
Flying is the fastest option for time-sensitive travelers. Nonstop flights are widely available.
- Air time: Approximately 45–70 minutes
- Total door-to-door time: Usually 3.5–4.5 hours (including airport processes)
- Airports: Chicago O’Hare (ORD) or Chicago Midway (MDW) to St. Louis Lambert International (STL)
- Airlines: Southwest Airlines (often the most frequent), American Airlines, and United Airlines
One-way fares frequently start around $55+ and round-trips from about $195 depending on dates and how far in advance you book. Southwest often has the best deals and two free checked bags.
Helpful Resources for Flying
- Google Flights – Best tool for comparing prices, times, and airlines
- Southwest Airlines – Direct booking and frequent low fares
- American Airlines – Flights from ORD and MDW
- St. Louis Lambert International Airport (STL) – Official airport information
- FlyChicago – Official site for ORD and MDW airports
Taking the Amtrak Train from Chicago to St. Louis (Lincoln Service)
The Amtrak Lincoln Service offers a comfortable, stress-free alternative with scenic views of Illinois farmland and small towns. It’s especially popular with families, business travelers who want to work en route, and anyone who prefers not to drive.
- Distance: ~284 miles along the route
- Travel time: Fastest trains ~4 hours 55 minutes; typical journey 5 hours to 5 hours 40 minutes
- Frequency: Multiple daily departures in each direction (typically 4–5 round trips)
- Stations: Chicago Union Station (CHI) ↔ St. Louis Gateway Station (STL)
- Price range: Often starts from $27–$40 one-way (varies by date and how early you book)
Trains are equipped with Wi-Fi, power outlets, and a café car. Many travelers say the train is more relaxing than driving and avoids Chicago traffic and airport hassles.
Helpful Resources for Train Travel
- Amtrak Lincoln Service – Official route information
- Amtrak Illinois Services – Schedules and booking
- Amtrak.com – Book tickets and check real-time status
- Rome2Rio – Train schedules and comparisons
- Wanderu – Easy Amtrak schedule search and price comparison
Quick Comparison of Travel Options
| Mode | Distance / Time | Est. One-Way Cost* | Best For |
|---|---|---|---|
| Driving | 296 miles / ~5 hours | $40–70 (gas + tolls) | Road trips, flexibility, groups |
| Flying | ~1 hr air time / 3.5–4.5 hrs total | From $55+ | Speed, business travel |
| Amtrak Train | ~284 miles / ~5 hours | From $27–40+ | Comfort, scenery, no driving stress |
| Bus (FlixBus) | ~6 hours | Often cheapest | Budget travelers |
*Costs are approximate and change frequently. Always check current prices.
Road Trip Planning: Suggested Stops Along I-55
Many travelers break up the drive with interesting stops. Popular options include:
- Joliet, IL – Historic downtown and Route 66 attractions
- Bloomington-Normal – Illinois State University area and restaurants
- Springfield, IL – Abraham Lincoln Presidential Library & Museum and historic sites (highly recommended 2–3 hour stop)
These stops turn a simple drive into a memorable Midwest experience.
Cost Comparison & Money-Saving Tips
Driving is often cheapest for 2+ people when you factor in gas, but the train or a good flight deal can be competitive for solo travelers. Book Amtrak and flights in advance for the lowest fares. Consider off-peak midweek travel and check for Amtrak discounts or airline sales.
Best Apps & Tools for a Smooth Trip
- Google Maps or Waze – Real-time traffic and navigation
- Amtrak app – Tickets, boarding passes, and live train status
- Airline apps (Southwest, American, United) – Mobile boarding and updates
- GasBuddy – Cheapest fuel along your route
When to Travel: Seasonal Tips?
Spring and fall offer the most pleasant driving and train conditions. Summer can bring heat and thunderstorms. Winter (December–February) may involve snow or ice that can delay driving and occasionally affect flights or trains. Always check weather forecasts and allow extra time in colder months.
Final Tips for Your Chicago to St. Louis Journey
Both cities offer excellent food scenes, sports, museums, and Midwest hospitality. Many visitors enjoy combining a trip with time in Springfield or exploring historic Route 66 segments that run parallel to I-55.
Always verify the latest schedules, prices, and road conditions directly with the providers before you travel, as times and fares change.
Safe travels — whether you’re hitting the road, catching a flight, or relaxing on the Lincoln Service train, the journey between Chicago and St. Louis is one of the most convenient and enjoyable short-haul trips in the Midwest.