How far is Dumbarton, VA from Portsmouth, VA?
The driving distance from Dumbarton, VA to Portsmouth, VA is about 103.8 miles (167 km), with a travel time of about 01h 45m by car.
- The straight-line flight distance is about 84.4 miles (135.9 km).
- For a round trip, plan for roughly 03h 30m 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 01h 45m.
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.
Independent city in Virginia, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers
Rain Showers
Driving Route Map
The map below follows the saved road route between Dumbarton and Portsmouth.
Turn-by-Turn Driving Directions
Step-by-step road directions between Dumbarton and Portsmouth.
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1
Start on Southside Avenue
63 m · 10 sec · Southside Avenue
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2
Turn right onto Staples Mill Road
111 m · 12 sec · Staples Mill Road
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3
Continue on Staples Mill Road
3007 ft · 1 min · Staples Mill Road
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4
Take the ramp slight right
1476 ft · 51 sec
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5
Merge slight left
4.8 mi · 7 min
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6
Keep slight right to continue on I 64 East: Williamsburg, Norfolk
73.9 mi · 1 hr 23 min
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7
Take the exit slight right toward I 664 South: Downtown Newport News, Suffolk, Chesapeake
2600 ft · 37 sec
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8
Merge slight left onto Hampton Roads Beltway
6.1 mi · 8 min · Hampton Roads Beltway
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9
Continue on Monitor-Merrimac Memorial Bridge-Tunnel
4.3 mi · 5 min · Monitor-Merrimac Memorial Bridge-Tunnel
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10
Continue on Hampton Roads Beltway
1.1 mi · 1 min · Hampton Roads Beltway
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11
Take the exit slight right toward VA 135 South: College Drive, Churchland
1575 ft · 39 sec
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12
Continue on College Drive
1.4 mi · 2 min · College Drive
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13
Take the ramp slight left toward VA 164 East: Downtown Portsmouth
1797 ft · 34 sec
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14
Merge slight left onto Western Freeway
5.8 mi · 8 min · Western Freeway
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15
Merge slight left onto Martin Luther King Freeway
1.1 km · 46 sec · Martin Luther King Freeway
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16
Take the exit slight right toward VA 141 South: Downtown Portsmouth
1461 ft · 36 sec
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17
Turn straight onto London Boulevard
1.2 mi · 2 min · London Boulevard
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18
Turn right onto Effingham Street
552 ft · 11 sec · Effingham Street
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19
Turn left onto High Street
2679 ft · 1 min · High Street
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20
Continue on High Street
61 m · 21 sec · High Street
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21
Arrive at your destination
0 m · 1 sec · High Street
Car Route Details
A richer read on the saved driving route between Dumbarton and Portsmouth.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 64 East
Keep slight right to continue on I 64 East: Williamsburg, Norfolk
73.9 mi · 01h 23m
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.
Rain Showers leaving Dumbarton and Rain Showers near Portsmouth.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Dumbarton to Portsmouth?
The road trip is about 103.8 miles (167 km) and usually takes 01h 45m 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?
Williamsburg is a useful midpoint, sitting about 51.1 miles from Dumbarton and 52.6 miles from Portsmouth.
How much longer is the road route than the straight-line distance?
The direct path is about 84.4 miles (135.9 km), while the road route adds roughly 19.4 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 3:00 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $14.50 one way or $28.99 round trip. Estimated CO2 is about 32.5 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers around Dumbarton and Rain Showers near Portsmouth.
Stop Ideas Near Williamsburg
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
James City County
James City County Government Center
Legacy Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Williamsburg.
Williamsburg Transportation Center
Newport News station
Norfolk
Petersburg station
Flight Path Map
This map shows the direct air route between Dumbarton and Portsmouth. Straight-line distance: 84.43 mi (135.87 km).
#1 Dumbarton
Dumbarton is a place in Virginia, United States.
| Population | 0 |
| Coordinates | 37.6037600, -77.4913700 |
| Altitude | 61 |
| Country | United States |
#2 Portsmouth
The most populous city in Portsmouth, Virginia.
| Population | 95,094 |
| Coordinates | 36.8354300, -76.2982700 |
| Altitude | 3 |
| Country | United States |
End: High Street (-76.29827, 36.835429)
Estimated Travel Time
Distance: 167 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 27m |
| 40 mph (64.37 km/h) | 02h 35m |
| 50 mph (80.47 km/h) | 02h 04m |
| 60 mph (96.56 km/h) | 01h 43m |
| 70 mph (112.65 km/h) | 01h 28m |
| 80 mph (129 km/h) | 01h 17m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.96 | $14.50 | $28.99 |
| Mid-grade | $4.43 | $16.21 | $32.42 |
| Premium | $4.78 | $17.49 | $34.97 |
| Diesel | $5.62 | $20.58 | $41.17 |
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 Virginia · Apr 26, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.