How far is Gray Summit, MO from St. Louis, MO?
The driving distance from Gray Summit, MO to St. Louis, MO is about 39.1 miles (63 km), with a travel time of about 00h 41m by car.
- The straight-line flight distance is about 34.7 miles (55.9 km).
- For a round trip, plan for roughly 01h 22m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM CDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 00h 41m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in St.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny then Chance Showers And Thunderstorms
Partly Sunny then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Gray Summit and St. Louis.
Turn-by-Turn Driving Directions
Step-by-step road directions between Gray Summit and St. Louis.
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1
Start on the route
2930 ft · 1 min
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2
Take the exit left toward I 44 East, US 50 East: Pacific
962 ft · 12 sec
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3
Merge slight left
27.1 mi · 32 min
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4
Continue on Police Officer Robert Stanze Memorial Highway
2.7 mi · 3 min · Police Officer Robert Stanze Memorial Highway
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5
Continue on Officer Michael Barwick Memorial Highway
3.5 mi · 4 min · Officer Michael Barwick Memorial Highway
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6
Continue on Officer David Haynes Memorial Highway
2.3 mi · 3 min · Officer David Haynes Memorial Highway
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7
Take the exit slight right toward Jefferson Avenue
924 ft · 22 sec
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8
Turn left onto South Jefferson Avenue
1.3 mi · 3 min · South Jefferson Avenue
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9
Turn right onto Market Street
1.6 km · 2 min · Market Street
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10
Arrive at your destination
0 m · 1 sec · Market Street
Car Route Details
A richer read on the saved driving route between Gray Summit and St. Louis.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 44 East
Merge slight left
27.1 mi · 00h 32m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Partly Sunny then Chance Showers And Thunderstorms leaving Gray Summit and Partly Sunny then Chance Showers And Thunderstorms near St. Louis.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Gray Summit to St. Louis?
The road trip is about 39.1 miles (63 km) and usually takes 00h 41m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Valley Park is a useful midpoint, sitting about 19.4 miles from Gray Summit and 19.8 miles from St. Louis.
How much longer is the road route than the straight-line distance?
The direct path is about 34.7 miles (55.9 km), while the road route adds roughly 4.4 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 7:00 AM to 7:00 PM CDT. If you want a more comfortable same-day return, try to leave by 7:08 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.20 one way or $10.41 round trip. Estimated CO2 is about 12.3 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny then Chance Showers And Thunderstorms around Gray Summit and Partly Sunny then Chance Showers And Thunderstorms near St. Louis.
Stop Ideas Near Valley Park
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Valley Park.
Kirkwood
Gateway Transportation Center
Washington
Alton
Flight Path Map
This map shows the direct air route between Gray Summit and St. Louis. Straight-line distance: 34.76 mi (55.94 km).
#1 Gray Summit
Census designated place
| Population | 2,701 |
| Coordinates | 38.4897800, -90.8168000 |
| Altitude | 203 |
| Country | United States |
#2 St. Louis
The second most populous city in Missouri and the center of the St.
| Population | 315,685 |
| Coordinates | 38.6272700, -90.1978900 |
| Altitude | 142 |
| Country | United States |
End: Market Street (-90.197859, 38.627348)
Estimated Travel Time
Distance: 63 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 18m |
| 40 mph (64.37 km/h) | 00h 58m |
| 50 mph (80.47 km/h) | 00h 46m |
| 60 mph (96.56 km/h) | 00h 39m |
| 70 mph (112.65 km/h) | 00h 33m |
| 80 mph (129 km/h) | 00h 29m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $5.20 | $10.41 |
| Mid-grade | $4.25 | $5.87 | $11.74 |
| Premium | $4.65 | $6.42 | $12.85 |
| Diesel | $5.30 | $7.32 | $14.64 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Missouri · May 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.