Connecting Bethany to O'Fallon, this 212.1-mile journey takes you across the Missouri Midwest over the course of approximately 3 hours and 21 minutes. Because the route is relatively straightforward, it is easily manageable as a single-day trip without the need for an overnight stay. You can expect to navigate via North Walnut Street, I-55 North, and the Rosa Parks Highway. With a fuel budget of roughly $32, the transit remains quite affordable for solo drivers or small groups. While the drive is efficient, keep in mind that it functions as a turn-heavy local trek rather than a simple highway cruise. Planning for one dedicated stop will help keep you refreshed for the duration of the trip.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
105.5 miles from Bethany, MO
A natural place for your longest stop of the day
, about 2h 11m into the drive
.
Main Roads
Road
Distance
Duration
I 55
129 mi
2h 18m
I 270
18.1 mi
22m
I 70
13.6 mi
16m
North Walnut Street
10.5 mi
15m
US 60
7.1 mi
8m
MO U
6.7 mi
11m
MO H
3 mi
7m
Rosa Parks Highway
1.3 mi
1m
Longest stretch:
I 55
— 129 mi, about 2h 18m
Traffic on I-70
Hour-of-day weekday pattern from 11 FHWA count stations on your route.
Peak
4 PM
~6,589 veh/hr typical
Quietest
2 AM
~547 veh/hr
Peak-to-quiet ratio
12×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 52 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Bethany, MO and O'Fallon, MO.
1
Start on County Road 102
0.8 mi·3 min·County Road 102
2
Turn right onto MO H
3.0 mi·7 min·MO H
3
Turn right onto MO U
6.7 mi·11 min·MO U
4
Turn left onto MO 25
10 mi·15 min·North Walnut Street
5
Take the ramp
16 mi·18 min
6
Continue on US 60
7.1 mi·8 min·US 60
7
Take the exit
0.3 mi·43 sec
Exit 1BToward I 55 North: Saint Louis
8
Merge onto I 55
27 mi·29 min·I 55
9
Keep slight left at fork onto I 55
102 mi·1 hr 49 min·I 55
10
Continue on I 55
1.3 mi·1 min·Rosa Parks Highway
11
Take the exit
0.2 mi·27 sec
Exit 196Toward I 270 West, I 255 East: Kansas City, ChicagoUse the slight right lane.
12
Keep slight left at fork
388 ft·8 sec
Toward I 270 West: Kansas CityUse the slight left lane.
13
Continue on this road
0.7 mi·1 min·this road
Exit 196Toward I 270 West
14
Merge onto I 270
18 mi·22 min·I 270
Use the straight lane.
15
Take the exit
1.0 mi·1 min
Exit 20AToward I 70: Kansas City, Saint Louis, Saint Louis Lambert International AirportUse the slight right lane.
16
Keep slight left at fork
0.1 mi·11 sec
Toward I 70 West: Kansas CityUse the slight left lane.
17
Continue on this road
0.6 mi·57 sec·this road
Exit 20BToward I 70 West: Kansas City
18
Merge onto I 70
14 mi·16 min·I 70
Use the straight / slight right lanes.
19
Take the exit
390 ft·8 sec
Exit 218Toward MO K: O'Fallon, Main StreetUse the slight right lane.
20
Turn straight onto East Terra Lane
0.9 mi·1 min·East Terra Lane
Use the straight lane.
21
Turn right onto South Main Street
0.5 mi·1 min·South Main Street
22
Turn right
25 ft·1 sec
23
Arrive at destination
Trip Plan
To make the most of this 3-hour and 21-minute drive, try to depart during off-peak hours to avoid potential congestion on the local road segments. Since you are planning for one stop, look for a convenient location midway through the 212.1-mile distance to stretch your legs and refuel. Keep your $32 fuel budget in mind as you plan your stops, ensuring you don't overspend by waiting until your tank is empty. Because the route relies heavily on local roads rather than major interstates, prioritize following your navigation closely, especially when transitioning between North Walnut Street and the Rosa Parks Highway. The flexibility of this shorter trip allows you to adjust your departure time easily based on your personal schedule.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 105.5 miles from Bethany, MO, or about 2h 11m into the drive.
The longest continuous stretch on this route runs about 129 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 46 miles or 1h 7m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 105.5 miles or 2h 11m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h 23m
Traffic, exits, and arrival timing usually matter more near O'Fallon, MO than in the middle of the route.
Before You Leave
+
Open the route before leaving Bethany, MO so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Bethany, MO
This is one driving day of about 210.9 miles and 4h 13m.
Your first comfortable stop window is around 46 miles from Bethany, MO.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on I 55 for about 129 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 16
5 decision points cluster between mile 174.8 and 209.4 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
8
174.8 mi into trip|~3h 26m in
Take the exit toward I 270 West, I 255 East: Kansas City, Chicago
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 196
Toward I 270 West, I 255 East: Kansas City, Chi...
8
175.1 mi into trip|~3h 26m in
Keep slight left at fork toward I 270 West: Kansas City
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left lane.
Toward I 270 West: Kansas City
8
194 mi into trip|~3h 50m in
Take the exit toward I 70: Kansas City, Saint Louis, Saint Louis Lambert International Airport
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 20A
Toward I 70: Kansas City, Saint Louis, Saint Lo...
7
195.1 mi into trip|~3h 51m in
Keep slight left at fork toward I 70 West: Kansas City
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left lane.
Toward I 70 West: Kansas City
8
209.4 mi into trip|~4h 9m in
Take the exit toward MO K: O'Fallon, Main Street
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 218
Toward MO K: O'Fallon, Main Street
Fuel & Cost
Regular Gas
$31.15 one way
$62.29 round trip
$3.75/gal25.4 MPG avg74 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.14
$34.38
$68.77
premium
$4.72
$39.16
$78.32
diesel
$4.80
$39.82
$79.64
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$31
Meals
$25–$50
Total
$56–$81
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 73.8 kg one way.
Prices: EIA weekly data, 2026-07-13.
EV Charging Along Route
40 DC fast chargers
· Coverage: excellent
Festus, MO Rechargery @ Schnucks - W Gannon Dr
Festus, MO
IONNA
10 DCFC
Mehlville, MO - Tesla Supercharger
Saint Louis County, MO
Tesla
10 DCFC
Fenton, MO Rechargery Relay @ Wally's - Assembly Parkway
Station data from NREL Alternative Fuel Stations database.
Driving Electric?
About $22 in charging
· 0 stops
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
63.3
0
$22.14
$10.12
Efficient EV
52.7
0
$18.45
$8.44
EV Truck/SUV
84.4
1
$29.53
$13.50
Gas CO2
74 kg
EV CO2
25 kg (66% 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.
Forecast as of Jul 19, 2026
Origin
Bethany, MO
Night
in Bethany on Saturday
Local time
11:23 PM
CDT
Current temp
74°F
Slight Chance Showers And Thunderstorms
WSW 0 to 5 mph21% chanceLive forecast
Heat Advisory
Heat Advisory issued July 18 at 12:07PM CDT until July 18 at 8:00PM CDT by NWS Memphis TN
Heat Advisory
Heat Advisory issued July 18 at 12:07PM CDT until July 19 at 9:00PM CDT by NWS Memphis TN
Destination
O'Fallon, MO
Night
in O'Fallon on Saturday
Local time
11:23 PM
CDT
Current temp
75°F
Slight Chance Showers And Thunderstorms
W 1 to 7 mph18% chanceLive forecast
Heat Advisory
Heat Advisory issued July 18 at 12:07PM CDT until July 18 at 8:00PM CDT by NWS Memphis TN
Heat Advisory
Heat Advisory issued July 18 at 12:07PM CDT until July 19 at 9:00PM CDT by NWS Memphis TN
66°F
Crystal City, MO
105 mi in
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
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
1 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
4h 13m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Ste. Geneviève National Historical Park
National Historical Park
Established by 1750, Ste. Geneviève was the first permanent European settlement in Missouri. Early French Canadian settlers were drawn here by the rich agricultural land known as Le Grand Champ (the B...
6 mi from route
~15 min detour
Free
near mile 123.6
Gateway Arch National Park commemorates President Jefferson’s vision of a continental nation, the individuals and cultural groups who helped shape its history, St. Louis’ role in westward expansion, a...
12 mi from route
~31 min detour
$19
near mile 174.5
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
Expect a shift in pace on this trip, as the route is categorized as a turn-heavy local drive rather than a high-speed interstate haul. Since the highway share is 0%, your focus will remain on maneuvering through local roads and transitions between major segments. You won't find long, monotonous highway stretches here; instead, the navigation requires constant attention to turns and changing road conditions. The personality of this drive is defined by its local character, which keeps the experience engaging behind the wheel. Stay alert for the frequent shifts in direction that define this 212-mile trek through Missouri.
80% highway — fuel and pacing are the main things to plan.
23 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 129 mi on I 55.
How Hard Is This Drive?
9/10
This is a straightforward highway drive that stays mostly on I 55 and I 270. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 174.8 miles in.
Driving Effort9/10
High effort - long or complex enough to need steady focus all day
Balances navigation complexity with total wheel time.
This is a demanding drive. With 16 significant decision points across 210.9 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 174.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 175.1 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 194 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Elevation Profile
Mostly flat terrain
648 ft298 ft
Total Climb
568 ft
Total Descent
449 ft
Highest Point
648 ft
~105.5 mi in
Elevation Range
350 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Bethany, MO and O'Fallon, MO, road signs point toward Chicago, Saint Louis and Saint Louis Lambert International Airport.
St. Charles, Missouri is outside of St. Louis on the bank of the Missouri River. It was Missouri's first state capital and was one of the first stops by Lewis and Clark on their journey to explore Louisiana Territory. The historic Main Street has largely been restored to its 1812-era appearance including gas lights a boardwalk and is lined with shops selling artwork, handicrafts, home decorations, antiques. There are also many restaurants.
Doable as a same-day drive at 4h 13m. Total distance: 210.9 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 13m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (80%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 129 miles on I 55. The full list of main roads is in the Roads section above.
Yes — we found about 10 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at O'Fallon, MO before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. There are 10 rest areas along the route for bathroom stops.
The main spots that need attention: at 174.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 175.1 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 194 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Yes — Ste. Geneviève National Historical Park and Gateway Arch National Park. See the National Parks section for detour distances and tips on detours.
Possible but tiring. At 4.2 hours each way, an in-and-out day trip would put you behind the wheel for 8.4 hours — manageable with a long break at O'Fallon, MO, but most travelers stay overnight.
