How far is Portsmouth, VA from South Riding, VA?
The driving distance from Portsmouth, VA to South Riding, VA is about 201.9 miles (324.9 km), with a travel time of about 04h 05m by car.
- The straight-line flight distance is about 158.4 miles (254.9 km).
- For a round trip, plan for roughly 08h 10m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM EST.
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 04h 05m.
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.
Town in Alabama, USA
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Portsmouth and South Riding.
Turn-by-Turn Driving Directions
Step-by-step road directions between Portsmouth and South Riding.
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1
Start on High Street
2505 ft · 56 sec · High Street
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2
Turn right onto Effingham Street
552 ft · 11 sec · Effingham Street
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3
Turn left onto London Boulevard
1.1 mi · 2 min · London Boulevard
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4
Take the ramp slight right toward US 58, VA 164: Western Freeway, Midtown Tunnel
996 ft · 19 sec
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5
Merge slight left onto Martin Luther King Freeway
1826 ft · 35 sec · Martin Luther King Freeway
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6
Continue on Western Freeway
6 mi · 8 min · Western Freeway
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7
Take the exit slight right toward VA 135: College Drive
1030 ft · 15 sec
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8
Keep slight right to continue on VA 135 North: College Drive
738 ft · 10 sec
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9
Turn straight onto College Drive
1.1 mi · 2 min · College Drive
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10
Take the ramp slight right toward I 664 North: Newport News, Hampton
2371 ft · 58 sec
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11
Merge slight left onto Hampton Roads Beltway
1.3 km · 1 min · Hampton Roads Beltway
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12
Continue on Monitor-Merrimac Memorial Bridge-Tunnel
4.3 mi · 5 min · Monitor-Merrimac Memorial Bridge-Tunnel
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13
Continue on Hampton Roads Beltway
6.2 mi · 8 min · Hampton Roads Beltway
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14
Keep slight left to continue on I 64 West: Williamsburg, Richmond
1.1 km · 54 sec
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15
Merge slight left
1.4 mi · 2 min
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16
Keep slight left
61.1 mi · 1 hr 8 min
-
17
Take the exit slight right toward I 295, US 60: Washington, Rocky Mount NC
2434 ft · 32 sec
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18
Keep slight right to continue on I 295 North: Washington
1.3 mi · 3 min
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19
Merge slight left onto Korean War Veterans Memorial Highway
11.9 mi · 13 min · Korean War Veterans Memorial Highway
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20
Take the exit slight left toward I 95 North: Washington
2.4 mi · 3 min
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21
Merge slight right
45.7 mi · 50 min
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22
Keep slight right
1.6 mi · 2 min
-
23
Keep slight left
1 mi · 1 min
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24
Merge slight left
26.4 mi · 31 min
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25
Take the exit slight right toward VA 123 North: Occoquan, Lake Ridge
1400 ft · 34 sec
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26
Keep slight left to continue on VA 123 North: Occoquan, Lake Ridge
709 ft · 17 sec
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27
Continue on Gordon Boulevard
1 mi · 2 min · Gordon Boulevard
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28
Continue on Ox Road
8.9 mi · 13 min · Ox Road
-
29
Take the exit straight toward VA 286 North: Fairfax County Parkway
2049 ft · 1 min
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30
Merge slight left onto Fairfax County Parkway
7.8 mi · 12 min · Fairfax County Parkway
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31
Take the exit slight right toward US 50 West
1210 ft · 42 sec
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32
Merge slight left onto Route 50
5.5 mi · 9 min · Route 50
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33
Continue on Little River Turnpike
1.9 mi · 3 min · Little River Turnpike
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34
Turn left onto South Riding Boulevard
30 m · 5 sec · South Riding Boulevard
-
35
Continue on South Riding Boulevard
692 ft · 24 sec · South Riding Boulevard
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36
Turn left onto Defender Drive
669 ft · 31 sec · Defender Drive
-
37
Turn right
10 m · 3 sec
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38
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Portsmouth and South Riding.
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 West
Keep slight left
61.1 mi · 01h 08m
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 Portsmouth and Sunny near South Riding.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Portsmouth to South Riding?
The road trip is about 201.9 miles (324.9 km) and usually takes 04h 05m 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?
Glen Allen is a useful midpoint, sitting about 100.9 miles from Portsmouth and 101 miles from South Riding.
How much longer is the road route than the straight-line distance?
The direct path is about 158.4 miles (254.9 km), while the road route adds roughly 43.5 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 EST. If you want a more comfortable same-day return, try to leave by 8:50 AM EST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $27.49 one way or $54.98 round trip. Estimated CO2 is about 63.3 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Portsmouth and Sunny near South Riding.
Stop Ideas Near Glen Allen
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Town Hall
Old City Hall
City of Richmond Virginia (City Hall)
City Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Glen Allen.
Richmond Staples Mill Road station
Ashland
Richmond Main Street Station
Petersburg station
Flight Path Map
This map shows the direct air route between Portsmouth and South Riding. Straight-line distance: 158.38 mi (254.89 km).
#1 Portsmouth
The most populous city in Portsmouth, Virginia.
| Population | 95,094 |
| Coordinates | 36.8354300, -76.2982700 |
| Altitude | 3 |
| Country | United States |
#2 South Riding
South Riding is a place in Virginia, United States.
| Population | 0 |
| Coordinates | 38.9209400, -77.5038800 |
| Altitude | 98 |
| Country | United States |
End: South Riding (-77.50388, 38.92094)
Estimated Travel Time
Distance: 325 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 43m |
| 40 mph (64.37 km/h) | 05h 02m |
| 50 mph (80.47 km/h) | 04h 02m |
| 60 mph (96.56 km/h) | 03h 21m |
| 70 mph (112.65 km/h) | 02h 53m |
| 80 mph (129 km/h) | 02h 31m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.86 | $27.49 | $54.98 |
| Mid-grade | $4.35 | $30.98 | $61.96 |
| Premium | $4.77 | $33.96 | $67.91 |
| Diesel | $6.16 | $43.84 | $87.68 |
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 · Nov 09, 2026