How far is Glendale, MO from O'Fallon, MO?
The driving distance from Glendale, MO to O'Fallon, MO is about 215.6 miles (346.9 km), with a travel time of about 03h 28m by car.
- The straight-line flight distance is about 171.4 miles (275.9 km).
- For a round trip, plan for roughly 06h 56m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 03h 28m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
Village in the United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Showers And Thunderstorms
Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Glendale and O'Fallon.
Turn-by-Turn Driving Directions
Step-by-step road directions between Glendale and O'Fallon.
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1
Start on the route
2310 ft · 1 min
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2
Continue on County Road 282
1 mi · 4 min · County Road 282
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3
Turn left onto County Road 281
1.7 mi · 7 min · County Road 281
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4
Continue on County Road 277
1.1 mi · 4 min · County Road 277
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5
Turn right
9.8 mi · 17 min
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6
At the end of the road, turn right
1 mi · 2 min
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7
Turn left
1.1 km · 1 min
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8
Take the ramp left toward I 55 North: Sikeston
1007 ft · 25 sec
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9
Merge slight left
60.5 mi · 1 hr 5 min
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10
Keep slight left
101.5 mi · 1 hr 49 min
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11
Continue on Rosa Parks Highway
1.3 mi · 2 min · Rosa Parks Highway
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12
Take the exit slight right toward I 270 West, I 255 East: Kansas City, Chicago
1279 ft · 27 sec
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13
Keep slight left to continue on I 270 West: Kansas City
118 m · 8 sec
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14
Continue on I 270 West
1.2 km · 1 min
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15
Merge slight left
18.1 mi · 23 min
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16
Take the exit slight right toward I 70: Kansas City, Saint Louis, Saint Louis Lambert International Airport
1 mi · 1 min
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17
Keep slight left to continue on I 70 West: Kansas City
645 ft · 11 sec
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18
Continue on I 70 West: Kansas City
1 km · 57 sec
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19
Merge slight left
13.6 mi · 17 min
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20
Take the exit slight right toward MO K: O'Fallon, Main Street
119 m · 8 sec
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21
Turn straight onto East Terra Lane
1.4 km · 2 min · East Terra Lane
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22
Turn right onto South Main Street
2830 ft · 1 min · South Main Street
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23
Turn right
8 m · 2 sec
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24
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Glendale and O'Fallon.
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 55 North
Keep slight left
102 mi · 01h 49m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Chance Showers And Thunderstorms leaving Glendale and Showers And Thunderstorms near O'Fallon.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Glendale to O'Fallon?
The road trip is about 215.6 miles (346.9 km) and usually takes 03h 28m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Longtown is a useful midpoint, sitting about 107.7 miles from Glendale and 107.8 miles from O'Fallon.
How much longer is the road route than the straight-line distance?
The direct path is about 171.4 miles (275.9 km), while the road route adds roughly 44.2 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 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 10:04 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $28.70 one way or $57.39 round trip. Estimated CO2 is about 67.6 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms around Glendale and Showers And Thunderstorms near O'Fallon.
Stop Ideas Near Longtown
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 Longtown.
Carbondale station
Du Quoin
Marion, IL
Vienna, IL
Flight Path Map
This map shows the direct air route between Glendale and O'Fallon. Straight-line distance: 171.42 mi (275.88 km).
#1 Glendale
City in Missouri
| Population | 5,863 |
| Coordinates | 36.4106200, -89.9056400 |
| Altitude | 82 |
| Country | United States |
#2 O'Fallon
The most populous city in St.
| Population | 89,769 |
| Coordinates | 38.8106100, -90.6998500 |
| Altitude | 165 |
| Country | United States |
End: (-90.699849, 38.810674)
Estimated Travel Time
Distance: 347 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 10m |
| 40 mph (64.37 km/h) | 05h 23m |
| 50 mph (80.47 km/h) | 04h 18m |
| 60 mph (96.56 km/h) | 03h 35m |
| 70 mph (112.65 km/h) | 03h 04m |
| 80 mph (129 km/h) | 02h 41m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $28.70 | $57.39 |
| Mid-grade | $4.25 | $32.37 | $64.73 |
| Premium | $4.65 | $35.42 | $70.83 |
| Diesel | $5.30 | $40.36 | $80.73 |
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 · Apr 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.