How far is South Bel Air, MD from Boonsboro, MD?
The driving distance from South Bel Air, MD to Boonsboro, MD is about 92.6 miles (149.1 km), with a travel time of about 01h 59m by car.
- The straight-line flight distance is about 70.1 miles (112.8 km).
- For a round trip, plan for roughly 03h 58m 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 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.
Unincorporated community in Howard County, Maryland, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Clear
Mostly Clear
Driving Route Map
The map below follows the saved road route between South Bel Air and Boonsboro.
Turn-by-Turn Driving Directions
Step-by-step road directions between South Bel Air and Boonsboro.
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1
Start on South Shamrock Road
1811 ft · 1 min · South Shamrock Road
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2
At the end of the road, turn right onto East MacPhail Road
1341 ft · 45 sec · East MacPhail Road
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3
Turn left onto South Main Street
151 m · 14 sec · South Main Street
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4
Continue on Emmorton Road
3158 ft · 1 min · Emmorton Road
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5
Turn right onto West Ring Factory Road
3105 ft · 2 min · West Ring Factory Road
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6
Turn left onto Vietnam Veterans Memorial Highway
3.9 mi · 6 min · Vietnam Veterans Memorial Highway
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7
Take the exit slight right toward I 95 South: Baltimore
1 km · 1 min
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8
Merge slight left onto John F. Kennedy Memorial Highway
8.1 mi · 9 min · John F. Kennedy Memorial Highway
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9
Keep slight left to continue on Express Toll Lanes
6.5 mi · 8 min · Express Toll Lanes
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10
Keep slight right to continue on Express Toll Lanes
1.2 mi · 2 min · Express Toll Lanes
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11
Merge slight right
3.9 mi · 5 min
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12
Keep slight right
7 mi · 9 min
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13
Take the exit slight right toward I 695 West: Towson
3248 ft · 1 min
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14
Merge slight left onto Baltimore Beltway
4.6 mi · 6 min · Baltimore Beltway
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15
Take the exit slight right toward I 70: Frederick, Local Traffic
951 ft · 23 sec
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16
Keep slight left to continue on I 70 West: Frederick
1.3 km · 2 min
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17
Merge slight left
14.1 mi · 15 min
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18
Continue straight
11.8 mi · 13 min
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19
Continue straight
15.7 mi · 17 min
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20
Take the exit slight right toward US 40 Alternate: Braddock Heights, Middletown
1501 ft · 41 sec
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21
Turn straight onto Old National Pike
2.7 mi · 5 min · Old National Pike
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22
Continue on East Main Street
1.8 mi · 3 min · East Main Street
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23
Continue on Old National Pike
6.1 mi · 9 min · Old National Pike
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24
Enter the roundabout and take exit 2 toward South Main Street
35 m · 2 sec · South Main Street
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25
Exit the roundabout onto South Main Street
1.2 km · 1 min · South Main Street
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26
Turn left onto Potomac Street
37 m · 2 sec · Potomac Street
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27
Arrive at your destination
0 m · 1 sec · Potomac Street
Car Route Details
A richer read on the saved driving route between South Bel Air and Boonsboro.
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 70 West
Continue straight
15.7 mi · 00h 17m
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.
Mostly Clear leaving South Bel Air and Mostly Clear near Boonsboro.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from South Bel Air to Boonsboro?
The road trip is about 92.6 miles (149.1 km) and usually takes 01h 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?
Ellicott City is a useful midpoint, sitting about 46.2 miles from South Bel Air and 46.4 miles from Boonsboro.
How much longer is the road route than the straight-line distance?
The direct path is about 70.1 miles (112.8 km), while the road route adds roughly 22.5 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 2:32 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $13.75 one way or $27.51 round trip. Estimated CO2 is about 29.1 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Clear around South Bel Air and Mostly Clear near Boonsboro.
Flight Path Map
This map shows the direct air route between South Bel Air and Boonsboro. Straight-line distance: 70.12 mi (112.84 km).
#1 South Bel Air
A census-designated place in Anne Arundel County, Maryland.
| Population | 48,828 |
| Coordinates | 39.5331600, -76.3374600 |
| Altitude | 109 |
| Country | United States |
#2 Boonsboro
Town in Washington County, Maryland, United States
| Population | 3,455 |
| Coordinates | 39.5062100, -77.6524900 |
| Altitude | 165 |
| Country | United States |
End: Boonsboro (-77.65249, 39.50621)
Estimated Travel Time
Distance: 149 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 05m |
| 40 mph (64.37 km/h) | 02h 19m |
| 50 mph (80.47 km/h) | 01h 51m |
| 60 mph (96.56 km/h) | 01h 32m |
| 70 mph (112.65 km/h) | 01h 19m |
| 80 mph (129 km/h) | 01h 09m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.21 | $13.75 | $27.51 |
| Mid-grade | $4.81 | $15.72 | $31.44 |
| Premium | $5.12 | $16.75 | $33.49 |
| Diesel | $6.36 | $20.81 | $41.61 |
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 Maryland · Oct 08, 2026