How far is Portsmouth, VA from Loch Lomond, VA?
The driving distance from Portsmouth, VA to Loch Lomond, VA is about 187.9 miles (302.4 km), with a travel time of about 03h 48m by car.
- The straight-line flight distance is about 149.4 miles (240.4 km).
- For a round trip, plan for roughly 07h 37m 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 48m.
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 Frederick County, Maryland, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms
Showers And Thunderstorms Likely
Driving Route Map
The map below follows the saved road route between Portsmouth and Loch Lomond.
Turn-by-Turn Driving Directions
Step-by-step road directions between Portsmouth and Loch Lomond.
-
1
Start on High Street
2505 ft · 56 sec · High Street
-
2
Turn right onto Effingham Street
552 ft · 11 sec · Effingham Street
-
3
Turn left onto London Boulevard
1.1 mi · 2 min · London Boulevard
-
4
Take the ramp slight right toward US 58, VA 164: Western Freeway, Midtown Tunnel
996 ft · 19 sec
-
5
Merge slight left onto Martin Luther King Freeway
1826 ft · 35 sec · Martin Luther King Freeway
-
6
Continue on Western Freeway
6 mi · 8 min · Western Freeway
-
7
Take the exit slight right toward VA 135: College Drive
1030 ft · 15 sec
-
8
Keep slight right to continue on VA 135 North: College Drive
738 ft · 10 sec
-
9
Turn straight onto College Drive
1.1 mi · 2 min · College Drive
-
10
Take the ramp slight right toward I 664 North: Newport News, Hampton
2371 ft · 58 sec
-
11
Merge slight left onto Hampton Roads Beltway
1.3 km · 1 min · Hampton Roads Beltway
-
12
Continue on Monitor-Merrimac Memorial Bridge-Tunnel
4.3 mi · 5 min · Monitor-Merrimac Memorial Bridge-Tunnel
-
13
Continue on Hampton Roads Beltway
6.2 mi · 8 min · Hampton Roads Beltway
-
14
Keep slight left to continue on I 64 West: Williamsburg, Richmond
1.1 km · 54 sec
-
15
Merge slight left
1.4 mi · 2 min
-
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
-
18
Keep slight right to continue on I 295 North: Washington
1.3 mi · 3 min
-
19
Merge slight left onto Korean War Veterans Memorial Highway
11.9 mi · 13 min · Korean War Veterans Memorial Highway
-
20
Take the exit slight left toward I 95 North: Washington
2.4 mi · 3 min
-
21
Merge slight right
45.7 mi · 50 min
-
22
Keep slight right
1.6 mi · 2 min
-
23
Keep slight left
1 mi · 1 min
-
24
Merge slight left
18.6 mi · 21 min
-
25
Take the exit slight right toward VA 234 North: Manassas
1717 ft · 42 sec
-
26
Continue on Dumfries Road
14 mi · 21 min · Dumfries Road
-
27
Take the exit slight right
1511 ft · 43 sec
-
28
Turn left onto Dumfries Road
1.7 mi · 3 min · Dumfries Road
-
29
Continue on Grant Avenue
1651 ft · 42 sec · Grant Avenue
-
30
Enter the roundabout and take exit 2 toward Grant Avenue
20 m · 1 sec · Grant Avenue
-
31
Exit the roundabout onto Grant Avenue
1.2 mi · 3 min · Grant Avenue
-
32
Turn slight left onto Sudley Road
2198 ft · 48 sec · Sudley Road
-
33
Turn right onto Plantation Lane
1.1 km · 2 min · Plantation Lane
-
34
Turn right onto Victoria Street
1.2 km · 2 min · Victoria Street
-
35
At the end of the road, turn right onto Lomond Drive
650 ft · 30 sec · Lomond Drive
-
36
Turn left onto Manassas Drive
83 m · 8 sec · Manassas Drive
-
37
Continue on Amherst Drive
903 ft · 27 sec · Amherst Drive
-
38
Turn right onto Arlington Avenue
137 m · 20 sec · Arlington Avenue
-
39
Arrive at your destination
0 m · 1 sec · Arlington Avenue
Car Route Details
A richer read on the saved driving route between Portsmouth and Loch Lomond.
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.
Showers And Thunderstorms leaving Portsmouth and Showers And Thunderstorms Likely near Loch Lomond.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Portsmouth to Loch Lomond?
The road trip is about 187.9 miles (302.4 km) and usually takes 03h 48m 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?
Mechanicsville is a useful midpoint, sitting about 94 miles from Portsmouth and 93.9 miles from Loch Lomond.
How much longer is the road route than the straight-line distance?
The direct path is about 149.4 miles (240.4 km), while the road route adds roughly 38.5 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 EDT. If you want a more comfortable same-day return, try to leave by 9:22 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $26.26 one way or $52.52 round trip. Estimated CO2 is about 58.9 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms around Portsmouth and Showers And Thunderstorms Likely near Loch Lomond.
Stop Ideas Near Mechanicsville
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 Mechanicsville.
Richmond Main Street Station
Richmond Staples Mill Road station
Ashland
Petersburg station
Flight Path Map
This map shows the direct air route between Portsmouth and Loch Lomond. Straight-line distance: 149.38 mi (240.4 km).
#1 Portsmouth
The most populous city in Portsmouth, Virginia.
| Population | 95,094 |
| Coordinates | 36.8354300, -76.2982700 |
| Altitude | 3 |
| Country | United States |
#2 Loch Lomond
Census designated place in Prince William County, Virginia, United States
| Population | 3,701 |
| Coordinates | 38.7862300, -77.4780400 |
| Altitude | 58 |
| Country | United States |
End: Loch Lomond (-77.47804, 38.78623)
Estimated Travel Time
Distance: 302 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 15m |
| 40 mph (64.37 km/h) | 04h 41m |
| 50 mph (80.47 km/h) | 03h 45m |
| 60 mph (96.56 km/h) | 03h 07m |
| 70 mph (112.65 km/h) | 02h 41m |
| 80 mph (129 km/h) | 02h 20m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.96 | $26.26 | $52.52 |
| Mid-grade | $4.43 | $29.36 | $58.73 |
| Premium | $4.78 | $31.68 | $63.36 |
| Diesel | $5.62 | $37.29 | $74.57 |
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 · May 25, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.