How far is O'Fallon, MO from Bethany, MO?
The driving distance from O'Fallon, MO to Bethany, MO is about 278.1 miles (447.5 km), with a travel time of about 05h 25m by car.
- The straight-line flight distance is about 203.9 miles (328.2 km).
- For a round trip, plan for roughly 10h 51m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CST.
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 05h 25m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Missouri, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Driving Route Map
The map below follows the saved road route between O'Fallon and Bethany.
Turn-by-Turn Driving Directions
Step-by-step road directions between O'Fallon and Bethany.
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1
Start on the route
8 m · 7 sec
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2
Turn left onto South Main Street
3116 ft · 2 min · South Main Street
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3
Turn left onto I 70 East
10 m · 6 sec
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4
Turn sharp left onto South Main Street
87 m · 11 sec · South Main Street
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5
Turn left onto West Terra Lane
576 ft · 12 sec · West Terra Lane
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6
Take the ramp straight toward I 70 West
146 m · 7 sec
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7
Merge slight left
6.9 mi · 8 min
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8
Take the exit slight right toward US 61 North: Hannibal
2234 ft · 48 sec
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9
Merge slight left onto Avenue of the Saints
73.3 mi · 1 hr 27 min · Avenue of the Saints
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10
Take the exit slight left
76 m · 15 sec
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11
Turn left onto Paris Gravel Road
2645 ft · 1 min · Paris Gravel Road
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12
Keep slight right to continue on County Road 422
85 m · 9 sec · County Road 422
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13
Turn right onto Veterans Road
2.2 mi · 4 min · Veterans Road
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14
Take the ramp left toward US 36 West, MO 110 West: Monroe City
1226 ft · 16 sec
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15
Merge slight left onto V.F.W. Memorial Highway
5.8 mi · 7 min · V.F.W. Memorial Highway
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16
Continue on Chicago-Kansas City Expressway
148.7 mi · 2 hr 52 min · Chicago-Kansas City Expressway
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17
Take the exit right toward I 35 North: Bethany, Des Moines
1133 ft · 28 sec
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18
Merge slight left
37.6 mi · 40 min
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19
Take the exit slight right
1036 ft · 32 sec
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20
Turn left onto Miller Street
1.3 km · 1 min · Miller Street
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21
Turn right onto South 25th Street
1262 ft · 28 sec · South 25th Street
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22
Turn left onto Main Street
43 m · 11 sec · Main Street
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23
Turn sharp left
10 m · 1 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 O'Fallon and Bethany.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Chicago-Kansas City Expressway
Continue on Chicago-Kansas City Expressway
149 mi · 02h 52m
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.
Sunny leaving O'Fallon and Sunny near Bethany.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from O'Fallon to Bethany?
The road trip is about 278.1 miles (447.5 km) and usually takes 05h 25m 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?
Macon is a useful midpoint, sitting about 138.9 miles from O'Fallon and 139.2 miles from Bethany.
How much longer is the road route than the straight-line distance?
The direct path is about 203.9 miles (328.2 km), while the road route adds roughly 74.2 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 CST. If you want a more comfortable same-day return, try to leave by 6:08 AM CST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $36.72 one way or $73.44 round trip. Estimated CO2 is about 87.2 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around O'Fallon and Sunny near Bethany.
Stop Ideas Near Macon
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 Macon.
La Plata
Quincy
Flight Path Map
This map shows the direct air route between O'Fallon and Bethany. Straight-line distance: 203.93 mi (328.2 km).
#1 O'Fallon
The most populous city in St.
| Population | 89,769 |
| Coordinates | 38.8106100, -90.6998500 |
| Altitude | 165 |
| Country | United States |
#2 Bethany
Bethany is a place in Missouri, United States.
| Population | 0 |
| Coordinates | 40.2683300, -94.0282900 |
| Altitude | 272 |
| Country | United States |
End: Bethany (-94.02829, 40.26833)
Estimated Travel Time
Distance: 448 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 09h 15m |
| 40 mph (64.37 km/h) | 06h 57m |
| 50 mph (80.47 km/h) | 05h 33m |
| 60 mph (96.56 km/h) | 04h 38m |
| 70 mph (112.65 km/h) | 03h 58m |
| 80 mph (129 km/h) | 03h 28m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.74 | $36.72 | $73.44 |
| Mid-grade | $4.13 | $40.49 | $80.97 |
| Premium | $4.50 | $44.11 | $88.21 |
| Diesel | $5.97 | $58.58 | $117.15 |
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 · Nov 07, 2026