How far is London, OH from Dayton, OH?
The driving distance from London, OH to Dayton, OH is about 48.2 miles (77.6 km), with a travel time of about 00h 50m by car.
- The straight-line flight distance is about 40.4 miles (65 km).
- For a round trip, plan for roughly 01h 41m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 00h 50m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
The most populous city in Clark County, Ohio.
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 London and Dayton.
Turn-by-Turn Driving Directions
Step-by-step road directions between London and Dayton.
-
1
Start on East High Street
28 m · 7 sec · East High Street
-
2
Turn right onto North Main Street
1.4 mi · 3 min · North Main Street
-
3
Continue on East Urbana-London Road
2.5 mi · 4 min · East Urbana-London Road
-
4
Continue on West Urbana-London Road
1.4 km · 1 min · West Urbana-London Road
-
5
Take the ramp left
1745 ft · 43 sec
-
6
Merge slight left
30.6 mi · 33 min
-
7
Take the exit slight right toward SR 4, SR 235: Dayton, New Carlisle
1730 ft · 42 sec
-
8
Keep slight left to continue on SR 4, SR 235 South: Dayton
11.1 mi · 14 min
-
9
Take the exit slight right toward SR 48: Main Street, Grand Avenue
1108 ft · 29 sec
-
10
Turn left onto North Main Street
1.4 km · 2 min · North Main Street
-
11
Arrive at your destination
0 m · 1 sec · South Main Street
Car Route Details
A richer read on the saved driving route between London and Dayton.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
West Urbana-London Road
Merge slight left
30.6 mi · 00h 33m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Sunny leaving London and Sunny near Dayton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from London to Dayton?
The road trip is about 48.2 miles (77.6 km) and usually takes 00h 50m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Springfield is a useful midpoint, sitting about 24.1 miles from London and 24.1 miles from Dayton.
How much longer is the road route than the straight-line distance?
The direct path is about 40.4 miles (65 km), while the road route adds roughly 7.8 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 4:48 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $6.30 one way or $12.60 round trip. Estimated CO2 is about 15.1 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around London and Sunny near Dayton.
Stop Ideas Near Springfield
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Historic City Hall Bell
Springfield City Hall
SOUTH VIENNA MUNICIPAL BLDG
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Springfield.
Columbus, OH
Cincinnati, OH
Cincinnati Museum Center at Union Terminal
Connersville station
Flight Path Map
This map shows the direct air route between London and Dayton. Straight-line distance: 40.42 mi (65.05 km).
#1 London
City in Madison County, Ohio, United States
| Population | 10,316 |
| Coordinates | 39.8864500, -83.4482500 |
| Altitude | 321 |
| Country | United States |
#2 Dayton
The ninth most populous city in Ohio.
| Population | 139,907 |
| Coordinates | 39.7589500, -84.1916100 |
| Altitude | 225 |
| Country | United States |
End: South Main Street (-84.191655, 39.758942)
Estimated Travel Time
Distance: 78 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 36m |
| 40 mph (64.37 km/h) | 01h 12m |
| 50 mph (80.47 km/h) | 00h 57m |
| 60 mph (96.56 km/h) | 00h 48m |
| 70 mph (112.65 km/h) | 00h 41m |
| 80 mph (129 km/h) | 00h 36m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.71 | $6.30 | $12.60 |
| Mid-grade | $4.24 | $7.21 | $14.42 |
| Premium | $4.79 | $8.14 | $16.29 |
| Diesel | $4.30 | $7.32 | $14.63 |
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 Ohio · Jun 02, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.