How far is West Portsmouth, OH from Dayton, OH?
The driving distance from West Portsmouth, OH to Dayton, OH is about 122.8 miles (197.7 km), with a travel time of about 02h 06m by car.
- The straight-line flight distance is about 93 miles (149.7 km).
- For a round trip, plan for roughly 04h 12m 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 02h 06m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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.
City in Ross County, Ohio, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Sunny
Driving Route Map
The map below follows the saved road route between West Portsmouth and Dayton.
Turn-by-Turn Driving Directions
Step-by-step road directions between West Portsmouth and Dayton.
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1
Start on 6th Street
55 m · 14 sec · 6th Street
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2
Turn left onto Calvert's Lane
1850 ft · 51 sec · Calvert's Lane
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3
At the end of the road, turn left
3.5 mi · 5 min
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4
Keep slight right
5.8 mi · 8 min
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5
Turn right
1.3 mi · 2 min
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6
Turn left
34.4 mi · 47 min
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7
Keep slight left to continue on US 35 West: Dayton
76.3 mi · 1 hr 26 min
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8
Take the exit slight right toward SR 48: Main Street, Jefferson Street
3027 ft · 1 min
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9
Keep slight right to continue on Jefferson Street, Day Air Ballpark, Patterson boulevard
98 m · 8 sec
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10
Turn slight right onto South Jefferson Street
1801 ft · 45 sec · South Jefferson Street
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11
Turn left onto East 4th Street
157 m · 14 sec · East 4th Street
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12
Turn right onto South Main Street
92 m · 8 sec · South Main Street
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13
Arrive at your destination
0 m · 1 sec · South Main Street
Car Route Details
A richer read on the saved driving route between West Portsmouth 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.
US 35 West
Keep slight left to continue on US 35 West: Dayton
76.3 mi · 01h 26m
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 West Portsmouth and Sunny near Dayton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from West Portsmouth to Dayton?
The road trip is about 122.8 miles (197.7 km) and usually takes 02h 06m 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?
Frankfort is a useful midpoint, sitting about 61.3 miles from West Portsmouth and 61.5 miles from Dayton.
How much longer is the road route than the straight-line distance?
The direct path is about 93 miles (149.7 km), while the road route adds roughly 29.8 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 2:18 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $16.08 one way or $32.16 round trip. Estimated CO2 is about 38.6 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around West Portsmouth and Sunny near Dayton.
Stop Ideas Near Frankfort
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 Frankfort.
Columbus, OH
South Portsmouth–South Shore station
Maysville
Ashland Transportation Center
Flight Path Map
This map shows the direct air route between West Portsmouth and Dayton. Straight-line distance: 92.99 mi (149.65 km).
#1 West Portsmouth
Census-designated place in Scioto County, Ohio
| Population | 3,149 |
| Coordinates | 38.7584100, -83.0290600 |
| Altitude | 188 |
| 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: 198 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 05m |
| 40 mph (64.37 km/h) | 03h 04m |
| 50 mph (80.47 km/h) | 02h 27m |
| 60 mph (96.56 km/h) | 02h 02m |
| 70 mph (112.65 km/h) | 01h 45m |
| 80 mph (129 km/h) | 01h 31m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.71 | $16.08 | $32.16 |
| Mid-grade | $4.24 | $18.41 | $36.82 |
| Premium | $4.79 | $20.79 | $41.58 |
| Diesel | $4.30 | $18.68 | $37.36 |
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 · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.