This 393.5-mile drive from Castlewood, VA to Alexandria, VA is a straightforward, highway-focused journey that can realistically be completed in one day, taking approximately 7 hours and 31 minutes. With 93% of the route on highways, including significant portions of I-81 and I-66, it’s designed for efficient travel. A fuel cost estimate of around $62 makes budgeting simple for this trip within Virginia. The drive is characterized by its focus on getting you to your destination with minimal fuss, making it a practical option for a single-day excursion.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
196.8 miles from Castlewood, VA
A natural place for your longest stop of the day
, about 3h 49m into the drive
.
Main Roads
Road
Distance
Duration
I 81
275.8 mi
5h 1m
I 66
64.1 mi
1h 11m
US 19
12.7 mi
18m
Capital Beltway
12.1 mi
15m
Trail of the Lonesome Pine
7.8 mi
10m
I 77
7.1 mi
7m
US Highway 58 Alternate
4.5 mi
6m
Capital Beltway (Local)
2 mi
2m
Longest stretch:
I 81
— 275.8 mi, about 5h 1m
Traffic on I-81
Hour-of-day weekday pattern from 124 FHWA count stations on your route.
Peak
3 PM
~1,673 veh/hr typical
· worst 2,232
Quietest
2 AM
~246 veh/hr
Peak-to-quiet ratio
6.8×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 52 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Castlewood, VA and Alexandria, VA.
1
Start on SR 750
201 ft·8 sec·Church Street
2
Turn slight left onto SR 615
0.3 mi·49 sec·Red Oak Ridge Road
3
Keep slight right at fork onto SR 615
0.4 mi·1 min·Red Oak Ridge Road
4
Turn slight right onto SR 695
0.2 mi·23 sec·Trout Farm Road
5
Turn right onto SR 683
1.5 mi·3 min·Memorial Drive
6
At end of road, turn left onto US 58 ALT
4.5 mi·6 min·US Highway 58 Alternate
7
Continue on US 58 ALT; VA 71
7.8 mi·10 min·Trail of the Lonesome Pine
8
Turn right onto US 19
13 mi·18 min·US 19
9
Turn left onto US 11
0.5 mi·1 min·West Main Street
10
Turn right onto Preston Street Southwest
0.2 mi·33 sec·Preston Street Southwest
11
At end of road, turn left onto Bradley Street Southwest
0.5 mi·1 min·Bradley Street Southwest
12
At end of road, turn right onto US 58 ALT; VA 75
0.6 mi·1 min·Cummings Street
Use the straight lane.
13
Take the exit
0.2 mi·31 sec
14
Merge onto I 81; US 58
57 mi·1 hr 1 min·I 81; US 58
Use the straight lane.
15
Continue on I 77; I 81; US 11; US 52
7.1 mi·7 min·I 77; I 81; US 11; US 52
16
Keep slight left at fork onto I 81; US 11
140 mi·2 hr 33 min·I 81; US 11
Toward I 81 North, US 11 North: RoanokeUse the straight lane.
17
Continue on I 64; I 81
0.3 mi·17 sec·I 64; I 81
18
Keep slight left at fork onto I 81
79 mi·1 hr 26 min·I 81
19
Take the exit
0.4 mi·47 sec
Toward I 66 East: Front Royal, Washington
20
Continue on I 66
43 mi·46 min·I 66
21
Keep slight right at fork onto I 66
21 mi·25 min·I 66
Use the straight lane.
22
Take the exit
0.4 mi·41 sec
Exit 64AToward I 495 South: Richmond, AlexandriaUse the right lane.
23
Merge onto I 495
12 mi·15 min·Capital Beltway
Use the straight / slight right lanes.
24
Keep slight right at fork onto I 95; I 495
2.0 mi·2 min·Capital Beltway (Local)
Toward I 95, I 495: AlexandriaUse the slight right lane.
25
Take the exit
0.2 mi·23 sec
Exit 177A-BToward US 1: Alexandria, Fort BelvoirUse the slight right lane.
26
Keep slight left at fork
0.4 mi·56 sec
Exit 177BToward US 1 North: Alexandria
27
Merge onto US 1
440 ft·8 sec·Richmond Highway
28
Continue on US 1
0.3 mi·45 sec·South Patrick Street
29
Turn right onto Franklin Street
0.2 mi·28 sec·Franklin Street
Use the right lane.
30
Turn left onto VA 400
0.5 mi·1 min·South Washington Street
Use the left lane.
31
Arrive at destination
VA 400
Trip Plan
Given the 7-hour and 31-minute duration and 393.5-mile length, this route is well-suited for a single-day trip. Aim to depart Castlewood, VA in the early morning to maximize daylight and minimize traffic, especially as you approach Alexandria. With only 2 planned stops suggested, you have flexibility in where and when you choose to rest or refuel. Keep an eye on your fuel, as the longest stretch without a significant change in road type is 275.8 miles on I-81, so plan your gas stops accordingly.
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
You can normally do this drive in one day.
Plan roughly 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 196.8 miles from Castlewood, VA, or about 3h 49m into the drive.
The longest continuous stretch on this route runs about 275.8 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 87 miles or 1h 48m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 196.8 miles or 3h 49m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 6h 18m
Traffic, exits, and arrival timing usually matter more near Alexandria, VA than in the middle of the route.
Before You Leave
+
Open the route before leaving Castlewood, VA so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
+
Pick one backup stop option before the midpoint in case traffic changes your pacing.
Day 1
Settle into the route from Castlewood, VA
This is one driving day of about 393.5 miles and 7h 31m.
Your first comfortable stop window is around 87 miles from Castlewood, VA.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 2 real breaks rather than only quick fuel stops.
The longest stretch is on I 81 for about 275.8 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 21
5 decision points cluster between mile 28.8 and 391.9 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
7
28.8 mi into trip|~44m in|US 58 ALT; VA 75 / Cummings Street
At end of road, turn right onto US 58 ALT; VA 75 / Cummings Street
Lane positioning matters here
Use the straight lane.
8
94 mi into trip|~1h 55m in|I 81; US 11
Keep slight left at fork onto I 81; US 11 toward I 81 North, US 11 North: Roanoke
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight lane.
Toward I 81 North, US 11 North: Roanoke
8
377.3 mi into trip|~7h 8m in
Take the exit toward I 495 South: Richmond, Alexandria
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the right lane.
Exit 64A
Toward I 495 South: Richmond, Alexandria
8
389.9 mi into trip|~7h 24m in|I 95; I 495 / Capital Beltway (Local)
Keep slight right at fork onto I 95; I 495 / Capital Beltway (Local) toward I 95, I 495: Alexandria
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Toward I 95, I 495: Alexandria
8
391.9 mi into trip|~7h 27m in
Take the exit toward US 1: Alexandria, Fort Belvoir
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 177A-B
Toward US 1: Alexandria, Fort Belvoir
Fuel & Cost
Regular Gas
$58.10 one way
$116.19 round trip
$3.75/gal25.4 MPG avg138 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.12
$63.84
$127.69
premium
$4.49
$69.59
$139.18
diesel
$4.80
$74.30
$148.60
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$58
Meals
$25–$50
Total
$83–$108
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 137.7 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $41 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
118.1
1
$41.32
$18.89
Efficient EV
98.4
1
$34.43
$15.74
EV Truck/SUV
157.4
1
$55.09
$25.18
Gas CO2
138 kg
EV CO2
46 kg (67% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Jul 17, 2026
Origin
Castlewood, VA
Late night
in Castlewood on Sunday
Local time
4:21 AM
EDT
Current temp
69°F
Mostly Clear
0 mph1% chanceLive forecast
Destination
Alexandria, VA
Late night
in Alexandria on Sunday
Local time
4:21 AM
EDT
Current temp
76°F
Smoke
N 7 mph5% chanceLive forecast
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
7 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
7h 31m on the road
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Cedar Creek & Belle Grove National Historical Park
National Historical Park
Virginia’s Shenandoah Valley has a long and rich heritage that still inspires today. Native Americans first shaped the land, followed by colonists and settlers. The fertile valley became an important...
1 mi from route
~2 min detour
Free
near mile 312.1
Just 75 miles from the bustle of Washington, D.C., Shenandoah National Park is a land bursting with cascading waterfalls, spectacular vistas, fields of wildflowers, and quiet wooded hollows. With over...
16 mi from route
~39 min detour
$30
near mile 271.4
Booker T. Washington was born a slave in April 1856 on the 207-acre farm of James Burroughs. After the Civil War, Washington became the first principal of Tuskegee Normal and Industrial School. Later...
21 mi from route
~53 min detour
Free
near mile 162.8
The Potomac River corridor is rich in both history and recreation, offering a chance to both explore your heritage and choose your adventure along the way. Start your journey here!
22 mi from route
~54 min detour
Free
near mile 366.4
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
Expect a predominantly highway experience on this trip, with 93% of the 393.5 miles utilizing major interstates. You'll spend a considerable amount of time on I-81, including a long stretch of 275.8 miles, which forms the backbone of this journey. The route is designed for steady progress, meaning you'll encounter fewer traffic lights and slower local roads. While not overly scenic, the highway focus ensures a consistent driving pace throughout the 7-hour duration.
93% highway — fuel and pacing are the main things to plan.
31 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 275.8 mi on I 81.
How Hard Is This Drive?
9/10
This is a straightforward highway drive that stays mostly on I 81 and I 66. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 28.8 miles in near US 58 ALT; VA 75 / Cummings Street.
Driving Effort9/10
High effort - long or complex enough to need steady focus all day
Balances navigation complexity with total wheel time.
This is a demanding drive. With 21 significant decision points across 393.5 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 28.8 miles (US 58 ALT; VA 75 / Cummings Street): Lane positioning matters here; at 94 miles (I 81; US 11): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 377.3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Elevation Profile
Gently rolling terrain
2,458 ft37 ft
Total Climb
1,521 ft
Total Descent
3,104 ft
Highest Point
2,458 ft
~84.3 mi in
Elevation Range
2,421 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Castlewood, VA to Alexandria, VA, road signs begin pointing toward Washington along the way.
Doable as a same-day drive at 7h 31m. Total distance: 393.5 miles.
Family Friendly
Moderate complexity with 2 natural rest stops along the way.
Solo Traveler
7h 31m drive, plan rest stops for pacing.
Frequently Asked Questions
The longest stretch is about 275.8 miles on I 81. The full list of main roads is in the Roads section above.
Yes — we found about 37 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Alexandria, VA before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 2 meaningful breaks. There are 37 rest areas along the route for bathroom stops.
The main spots that need attention: at 28.8 miles (US 58 ALT; VA 75 / Cummings Street): Lane positioning matters here; at 94 miles (I 81; US 11): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 377.3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Yes — Cedar Creek & Belle Grove National Historical Park, Shenandoah National Park and Booker T Washington National Monument (4 total within detour distance). See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 7.5 hours each way, a round trip means 15.1 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Alexandria, VA before the return drive.
