The drive from St. Louis, MO to Bethany, MO covers 309.7 miles and takes about 6h 4m behind the wheel.
This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on Chicago-Kansas City Expressway, Avenue of the Saints, I 35 for much of the mileage,
and the overall profile is highway-focused drive.
The longest uninterrupted segment is about 148.7 miles on Chicago-Kansas City Expressway.
At current regular gas prices, budget about $48.42 one way before food or hotel costs.
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
154.8 miles from St. Louis, MO
A natural place for your longest stop of the day
, about 3h 7m into the drive
.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 6h 4m. Total distance: 309.7 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
6h 4m drive, plan rest stops for pacing.
Drive Character
This is a 6h 4m highway drive covering 309.7 miles, with most of the trip on Chicago-Kansas City Expressway and Avenue of the Saints. The longest continuous stretch is about 148.7 miles on Chicago-Kansas City Expressway.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 20 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Chicago-Kansas City Expressway is the longest continuous segment at about 148.7 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on Chicago-Kansas City Expressway and Avenue of the Saints. You will hit about 15 points where you need to pay attention to lane position or signs. The trickiest moment comes around 1.9 miles in near I 64; US 40 / Jack Buck Memorial Highway.
Driving Effort6/10
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 309.7 miles you will encounter 15 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: at 1.9 miles (I 64; US 40 / Jack Buck Memorial Highway): Merge point - match speed before joining. Lane positioning matters here; at 115.9 miles: Multiple destination signs - pick the right one; at 270.6 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 15 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
5
1.9 mi into trip|~3m in|I 64; US 40 / Jack Buck Memorial Highway
Merge onto I 64; US 40 / Jack Buck Memorial Highway
Merge point - match speed before joining. Lane positioning matters here
Use the straight lane.
6
115.9 mi into trip|~2h 22m in
Take the ramp toward US 36 West, MO 110 West: Monroe City
Multiple destination signs - pick the right one
Toward US 36 West, MO 110 West: Monroe City
6
270.6 mi into trip|~5h 21m in
Take the exit toward I 35 North: Bethany, Des Moines
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward I 35 North: Bethany, Des Moines
5
309.7 mi into trip|~6h 4m in|MO W / Main Street
Turn left onto MO W / Main Street
Navigation decision point
6
309.7 mi into trip|~6h 4m in
Turn sharp left
Sharp turn - reduce speed on approach
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from St. Louis, MO to Bethany, MO, road signs begin pointing toward Des Moines along the way.
Des Moines
270.6 mi in|~5h 21m
Main Roads
Road
Distance
Duration
Chicago-Kansas City Expressway
148.7 mi
2h 51m
Avenue of the Saints
101.2 mi
2h
I 35
37.6 mi
40m
V.F.W. Memorial Highway
5.8 mi
6m
Daniel Boone Expressway
5.7 mi
7m
Jack Buck Memorial Highway
4.3 mi
5m
Veterans Road
2.2 mi
3m
Market Street
1.6 mi
3m
Longest stretch:
Chicago-Kansas City Expressway
— 148.7 mi, about 2h 51m
Turn-by-Turn Driving Directions
Step-by-step road directions between St. Louis, MO and Bethany, MO.
1
Start on Market Street
1.6 mi·3 min·Market Street
2
Take the ramp
0.3 mi·23 sec
Toward I 64 West, US 40 West: Wentzville
3
Merge onto I 64; US 40
4.3 mi·5 min·Jack Buck Memorial Highway
Use the straight lane.
4
Continue on I 64; US 40
5.7 mi·7 min·Daniel Boone Expressway
Use the straight lane.
5
Continue on I 64; US 40; US 61
101 mi·2 hr·Avenue of the Saints
Use the straight lane.
6
Take the exit
249 ft·14 sec
7
Turn left onto Paris Gravel Road
0.5 mi·1 min·Paris Gravel Road
8
Keep slight right at fork onto County Road 422
279 ft·8 sec·County Road 422
9
Turn right onto Veterans Road
2.2 mi·3 min·Veterans Road
10
Take the ramp
0.2 mi·16 sec
Toward US 36 West, MO 110 West: Monroe City
11
Merge onto US 36; MO 110
5.8 mi·6 min·V.F.W. Memorial Highway
12
Continue on US 24; US 36; MO 110
149 mi·2 hr 51 min·Chicago-Kansas City Expressway
13
Take the exit
0.2 mi·27 sec
Toward I 35 North: Bethany, Des Moines
14
Merge onto I 35
38 mi·40 min·I 35
15
Take the exit
0.2 mi·31 sec
16
Turn left onto US 136
0.8 mi·1 min·Miller Street
17
Turn right onto US 69
0.2 mi·27 sec·South 25th Street
18
Turn left onto MO W
139 ft·11 sec·Main Street
19
Turn sharp left
32 ft·1 sec
20
Arrive at destination
Trip Plan
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 154.8 miles from St. Louis, MO, or about 3h 7m into the drive.
The longest continuous stretch on this route runs about 148.7 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 68 miles or 1h 23m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 154.8 miles or 3h 7m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 5h 2m
Traffic, exits, and arrival timing usually matter more near Bethany, MO than in the middle of the route.
Before You Leave
+
Open the route before leaving St. Louis, 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 St. Louis, MO
This is one driving day of about 309.7 miles and 6h 4m.
Your first comfortable stop window is around 68 miles from St. Louis, 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 Chicago-Kansas City Expressway for about 148.7 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 154.8 mi from St. Louis, MO
· 3h 7m into the drive
Place data sourced from public business listings. Hours and availability may vary.
National Parks Near This Route
Worth a detour if your schedule allows.
Gateway Arch National Park
National Park
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...
Station data from NREL Alternative Fuel Stations database.
Driving Electric?
About $33 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
92.9
1
$32.52
$14.87
Efficient EV
77.4
0
$27.10
$12.39
EV Truck/SUV
123.9
1
$43.36
$19.82
Gas CO2
108 kg
EV CO2
36 kg (67% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
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 Apr 15, 2026
Origin
St. Louis, MO
Evening
in St. Louis on Thursday
Local time
6:58 PM
CDT
Current temp
74°F
Unavailable
Live forecast
Destination
Bethany, MO
Evening
in Bethany on Thursday
Local time
6:58 PM
CDT
Current temp
75°F
Unavailable
Live forecast
46°F
New Salem, IL
155 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
6h 4m on the road
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from St. Louis, MO to Bethany, MO covers 309.7 miles and takes about 6h 4m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Chicago-Kansas City Expressway, Avenue of the Saints, I 35. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 154.8 miles from St. Louis, MO. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $48.42 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Start early — leave by 6-7 AM to arrive at a reasonable hour. This is a long drive — plan for a morning departure or consider splitting it into two days.
Plan about 1 meaningful break for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
This drive requires moderate attention. Across 309.7 miles you will encounter 15 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: at 1.9 miles (I 64; US 40 / Jack Buck Memorial Highway): Merge point - match speed before joining. Lane positioning matters here; at 115.9 miles: Multiple destination signs - pick the right one; at 270.6 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one.
On the drive from St. Louis, MO to Bethany, MO, road signs begin pointing toward Des Moines along the way.
