How far is Manassas, VA from Portsmouth, VA?
The driving distance from Manassas, VA to Portsmouth, VA is about 186.8 miles (300.6 km), with a travel time of about 02h 59m by car.
- The straight-line flight distance is about 147.1 miles (236.8 km).
- For a round trip, plan for roughly 05h 59m 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 59m.
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.
Town in Frederick County, Maryland, United States
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 Manassas and Portsmouth.
Turn-by-Turn Driving Directions
Step-by-step road directions between Manassas and Portsmouth.
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1
Start on Grant Avenue
2227 ft · 55 sec · Grant Avenue
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2
Enter the roundabout and take exit 2 toward Grant Avenue
25 m · 2 sec · Grant Avenue
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3
Exit the roundabout onto Grant Avenue
1599 ft · 41 sec · Grant Avenue
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4
Continue on Dumfries Road
1.7 mi · 3 min · Dumfries Road
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5
Turn left
748 ft · 12 sec
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6
Take the exit right
1.1 km · 2 min
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7
Merge slight left onto Dumfries Road
13.4 mi · 20 min · Dumfries Road
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8
Take the exit slight right
2284 ft · 58 sec
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9
Merge slight left
18.2 mi · 21 min
-
10
Keep slight left
48.6 mi · 53 min
-
11
Take the exit slight left toward I 295 South: Williamsburg, Norfolk, Va Beach
1.9 mi · 2 min
-
12
Merge slight right onto Korean War Veterans Memorial Highway
13 mi · 14 min · Korean War Veterans Memorial Highway
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13
Take the exit slight right toward I 64 East: Norfolk, Virginia Beach
1.3 mi · 3 min
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14
Merge slight left
62.7 mi · 1 hr 10 min
-
15
Take the exit slight right toward I 664 South: Downtown Newport News, Suffolk, Chesapeake
2600 ft · 37 sec
-
16
Merge slight left onto Hampton Roads Beltway
6.1 mi · 8 min · Hampton Roads Beltway
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17
Continue on Monitor-Merrimac Memorial Bridge-Tunnel
4.3 mi · 5 min · Monitor-Merrimac Memorial Bridge-Tunnel
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18
Continue on Hampton Roads Beltway
1.1 mi · 1 min · Hampton Roads Beltway
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19
Take the exit slight right toward VA 135 South: College Drive, Churchland
1575 ft · 39 sec
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20
Continue on College Drive
1.4 mi · 2 min · College Drive
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21
Take the ramp slight left toward VA 164 East: Downtown Portsmouth
1797 ft · 34 sec
-
22
Merge slight left onto Western Freeway
5.8 mi · 8 min · Western Freeway
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23
Merge slight left onto Martin Luther King Freeway
1.1 km · 46 sec · Martin Luther King Freeway
-
24
Take the exit slight right toward VA 141 South: Downtown Portsmouth
1461 ft · 36 sec
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25
Turn straight onto London Boulevard
1.2 mi · 2 min · London Boulevard
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26
Turn right onto Effingham Street
552 ft · 11 sec · Effingham Street
-
27
Turn left onto High Street
2679 ft · 1 min · High Street
-
28
Continue on High Street
61 m · 21 sec · High Street
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29
Arrive at your destination
0 m · 1 sec · High Street
Car Route Details
A richer read on the saved driving route between Manassas and Portsmouth.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
I 64 East
Merge slight left
62.7 mi · 01h 10m
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 Manassas and Sunny near Portsmouth.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Manassas to Portsmouth?
The road trip is about 186.8 miles (300.6 km) and usually takes 02h 59m 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?
Mechanicsville is a useful midpoint, sitting about 92.8 miles from Manassas and 94 miles from Portsmouth.
How much longer is the road route than the straight-line distance?
The direct path is about 147.1 miles (236.8 km), while the road route adds roughly 39.7 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 12:30 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $26.10 one way or $52.21 round trip. Estimated CO2 is about 58.6 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Manassas and Sunny near Portsmouth.
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 Manassas and Portsmouth. Straight-line distance: 147.12 mi (236.77 km).
#1 Manassas
The county seat of Prince William County, Virginia.
| Population | 40,869 |
| Coordinates | 38.7509500, -77.4752700 |
| Altitude | 93 |
| 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: 301 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 13m |
| 40 mph (64.37 km/h) | 04h 40m |
| 50 mph (80.47 km/h) | 03h 44m |
| 60 mph (96.56 km/h) | 03h 06m |
| 70 mph (112.65 km/h) | 02h 40m |
| 80 mph (129 km/h) | 02h 19m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.96 | $26.10 | $52.21 |
| Mid-grade | $4.43 | $29.19 | $58.37 |
| Premium | $4.78 | $31.49 | $62.97 |
| Diesel | $5.62 | $37.06 | $74.12 |
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 13, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.