Origin
O'Fallon, MO
Night in O'Fallon on Thursday
Local time
10:25 PM
CDT
Current temp
57°F
Unavailable
Live forecast
Trip from O'Fallon, MO to Ballwin, MO
Last recalculated Apr 17, 2026
Drive Time
37m
Distance
22.3 mi
36 km
Drive Score
6/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$3
one way
EV Charging
Good
8 stations
Best Time to Leave
4 AM
0h 34m
★
6 AM
0h 37m
8 AM
0h 44m
10 AM
0h 39m
12 PM
0h 39m
3 PM
0h 40m
5 PM
0h 43m
8 PM
0h 35m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
O'Fallon, MO
Wikimedia Commons
Ballwin, MO
Wikimedia Commons
Trip Overview
The drive from O'Fallon, MO to Ballwin, MO covers 22.3 miles and takes about 37m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on Avenue of the Saints, MO K, Baxter Road for much of the mileage, and the overall profile is turn-heavy local drive. The longest uninterrupted segment is about 9.4 miles on Avenue of the Saints. At current regular gas prices, budget about $3.49 one way before food or hotel costs.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 37m. Total distance: 22.3 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
37m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (0%). Some complex stretches to watch for.
Scenic Drive
Turn-heavy local drive route profile with national parks nearby.
Drive Character
Expect a 37m drive with frequent turns across 22.3 miles of local and secondary roads.
This route has more turning and local-road decision points than a simple highway run.
There are about 14 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Avenue of the Saints is the longest continuous segment at about 9.4 miles.
How Hard Is This Drive?
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. You will hit about 7 points where you need to pay attention to lane position or signs. The trickiest moment comes early in the drive near South Main Street.
Driving Effort
5/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 22.3 miles you will encounter 7 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: near the start (South Main Street): Navigation decision point; at 7 miles: Lane positioning matters here. Multiple destination signs - pick the right one; at 7.3 miles (I 64; US 40; US 61 / Avenue of the Saints): Merge point - match speed before joining. Lane positioning matters here.
Critical Maneuvers
5 of 7 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
4
0 mi into trip
|
~0m in
|
South Main Street
Turn left onto South Main Street
Navigation decision point
6
7 mi into trip
|
~12m in
Take the ramp toward I 64 East, US 40 East, US 61 South
Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Toward I 64 East, US 40 East, US 61 South
5
7.3 mi into trip
|
~13m in
|
I 64; US 40; US 61 / Avenue of the Saints
Merge onto I 64; US 40; US 61 / Avenue of the Saints
Merge point - match speed before joining. Lane positioning matters here
Use the straight lane.
8
16.7 mi into trip
|
~25m in
Take the exit toward MO 340: Olive Boulevard, Clarkson Road
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 19B
Toward MO 340: Olive Boulevard, Clarkson Road
4
22.2 mi into trip
|
~36m in
Turn right
Navigation decision point
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Avenue of the Saints | 9.4 mi | 11m |
| MO K | 6.5 mi | 11m |
| Baxter Road | 2.9 mi | 5m |
| Holloway Road | 1.2 mi | 3m |
| Clarkson Road | 0.9 mi | 1m |
| South Main Street | 0.5 mi | 1m |
Longest stretch:
Avenue of the Saints
— 9.4 mi, about 11m
Turn-by-Turn Driving Directions
Step-by-step road directions between O'Fallon, MO and Ballwin, MO.
1
Start on this road
25 ft
·
7 sec
·
this road
2
Turn left onto South Main Street
0.5 mi
·
1 min
·
South Main Street
3
Continue on MO K
3.1 mi
·
5 min
·
MO K
Use the left lane.
4
Continue on MO K
3.4 mi
·
5 min
·
MO K
Use the straight lane.
5
Take the ramp
0.3 mi
·
21 sec
Toward I 64 East, US 40 East, US 61 South
Use the slight right lane.
6
Merge onto I 64; US 40; US 61
9.4 mi
·
11 min
·
Avenue of the Saints
Use the straight lane.
7
Take the exit
0.4 mi
·
57 sec
Exit 19B
Toward MO 340: Olive Boulevard, Clarkson Road
Use the slight right lane.
8
Turn slight right
183 ft
·
6 sec
Toward MO 340
9
Turn straight onto MO 340
0.9 mi
·
1 min
·
Clarkson Road
10
Turn left onto Baxter Road
2.9 mi
·
5 min
·
Baxter Road
11
Turn straight onto Holloway Road
1.2 mi
·
3 min
·
Holloway Road
Use the straight / right lanes.
12
Turn right
220 ft
·
18 sec
13
Turn right
219 ft
·
16 sec
14
Arrive at destination
Fuel & Cost
Regular Gas
$3.49 one way
$6.97 round trip
$3.97/gal
25.4 MPG avg
8 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.36 | $3.83 | $7.66 |
| premium | $4.89 | $4.29 | $8.58 |
| diesel | $5.61 | $4.92 | $9.85 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$3
Estimated CO2 emission: 7.8 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $2 in charging · 0 stops · 63% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 6.7 | 0 | $2.34 | $1.07 |
| Efficient EV | 5.6 | 0 | $1.95 | $0.89 |
| EV Truck/SUV | 8.9 | 0 | $3.12 | $1.43 |
Gas CO2
8 kg
EV CO2
3 kg (63% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Destination
Ballwin, MO
Night in Ballwin on Thursday
Local time
10:25 PM
CDT
Current temp
57°F
Unavailable
Live forecast
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
Very similar conditions
Both ends of the route are sitting at about the same temperature right now.
Road read
37m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from O'Fallon, MO to Ballwin, MO covers 22.3 miles and takes about 37m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Avenue of the Saints, MO K, Baxter Road. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 11.2 miles from O'Fallon, MO. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $3.49 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Leave by 9 AM and you'll arrive before lunch. Even a 4 PM departure gets you there before dark in summer.
This drive requires moderate attention. Across 22.3 miles you will encounter 7 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
The main spots that need attention: near the start (South Main Street): Navigation decision point; at 7 miles: Lane positioning matters here. Multiple destination signs - pick the right one; at 7.3 miles (I 64; US 40; US 61 / Avenue of the Saints): Merge point - match speed before joining. Lane positioning matters here.
The route from O'Fallon, MO to Ballwin, MO does not surface many named destination signs beyond the main corridor.
Yes. Nearby national parks include Gateway Arch National Park.
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