How far is Thompson, OH from Dayton, OH?
The driving distance from Thompson, OH to Dayton, OH is about 248.9 miles (400.5 km), with a travel time of about 03h 57m by car.
- The straight-line flight distance is about 211.7 miles (340.7 km).
- For a round trip, plan for roughly 07h 54m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM EDT.
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 03h 57m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Areas Of Frost
Areas Of Frost then Mostly Sunny
Driving Route Map
The map below follows the saved road route between Thompson and Dayton.
Turn-by-Turn Driving Directions
Step-by-step road directions between Thompson and Dayton.
-
1
Start on Thompson Road
9 m · 1 sec · Thompson Road
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2
Continue on Madison Road
613 ft · 13 sec · Madison Road
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3
Continue on Madison Road
610 ft · 15 sec · Madison Road
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4
Turn left onto Thompson Road
10 m · 1 sec · Thompson Road
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5
Turn right onto Madison Road
4.8 mi · 7 min · Madison Road
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6
Continue on River Street
1082 ft · 35 sec · River Street
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7
Take the ramp left
1699 ft · 43 sec
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8
Merge slight left
22.5 mi · 25 min
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9
Keep slight left
13.9 mi · 17 min
-
10
Merge slight right onto Outerbelt East Freeway
3.6 mi · 4 min · Outerbelt East Freeway
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11
Keep slight left
24.3 mi · 27 min
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12
Merge slight left
110.2 mi · 1 hr 59 min
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13
Take the exit slight right toward I 670 East, I 670 West: Airport, Dayton
1692 ft · 41 sec
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14
Keep slight right to continue on I 670 West: Dayton
1491 ft · 36 sec
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15
Merge slight left onto Northeast Freeway
1248 ft · 19 sec · Northeast Freeway
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16
Keep slight right
4.5 mi · 6 min
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17
Merge slight right onto West Freeway
54.2 mi · 58 min · West Freeway
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18
Take the exit slight right toward SR 4, SR 235: Dayton, New Carlisle
1730 ft · 42 sec
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19
Keep slight left to continue on SR 4, SR 235 South: Dayton
11.1 mi · 14 min
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20
Take the exit slight right toward SR 48: Main Street, Grand Avenue
1108 ft · 29 sec
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21
Turn left onto North Main Street
1.4 km · 2 min · North Main Street
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22
Arrive at your destination
0 m · 1 sec · South Main Street
Car Route Details
A richer read on the saved driving route between Thompson and Dayton.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Outerbelt East Freeway
Merge slight left
110 mi · 01h 59m
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.
Areas Of Frost leaving Thompson and Areas Of Frost then Mostly Sunny near Dayton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Thompson to Dayton?
The road trip is about 248.9 miles (400.5 km) and usually takes 03h 57m 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?
Bellville is a useful midpoint, sitting about 125.9 miles from Thompson and 123 miles from Dayton.
How much longer is the road route than the straight-line distance?
The direct path is about 211.7 miles (340.7 km), while the road route adds roughly 37.2 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 EDT. If you want a more comfortable same-day return, try to leave by 9:06 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $32.53 one way or $65.06 round trip. Estimated CO2 is about 78 kg one way.
What should you check before leaving?
Before you leave, expect Areas Of Frost around Thompson and Areas Of Frost then Mostly Sunny near Dayton.
Stop Ideas Near Bellville
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 Bellville.
Columbus, OH
Elyria
Sandusky
Flight Path Map
This map shows the direct air route between Thompson and Dayton. Straight-line distance: 211.73 mi (340.74 km).
#1 Thompson
City in Geauga County, Ohio, United States of America
| Population | 1,371 |
| Coordinates | 41.6900500, -81.0514900 |
| Altitude | 387 |
| 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: 401 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 08h 17m |
| 40 mph (64.37 km/h) | 06h 13m |
| 50 mph (80.47 km/h) | 04h 58m |
| 60 mph (96.56 km/h) | 04h 08m |
| 70 mph (112.65 km/h) | 03h 33m |
| 80 mph (129 km/h) | 03h 06m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.71 | $32.53 | $65.06 |
| Mid-grade | $4.24 | $37.24 | $74.49 |
| Premium | $4.79 | $42.06 | $84.11 |
| Diesel | $4.30 | $37.79 | $75.58 |
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 · May 03, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.