How far is Boston, MA from Onset, MA?
The driving distance from Boston, MA to Onset, MA is about 57 miles (91.7 km), with a travel time of about 01h 14m by car.
- The straight-line flight distance is about 47.3 miles (76.2 km).
- For a round trip, plan for roughly 02h 29m 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 14m.
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.
City in Plymouth County, Massachusetts, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers Likely
Rain Showers Likely
Driving Route Map
The map below follows the saved road route between Boston and Onset.
Turn-by-Turn Driving Directions
Step-by-step road directions between Boston and Onset.
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1
Start on Tremont Street
70 m · 16 sec · Tremont Street
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2
Turn left onto School Street
608 ft · 26 sec · School Street
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3
At the end of the road, turn left onto Washington Street
34 m · 4 sec · Washington Street
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4
Turn right onto Water Street
64 m · 11 sec · Water Street
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5
Turn right onto Devonshire Street
910 ft · 37 sec · Devonshire Street
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6
Continue on Otis Street
148 m · 19 sec · Otis Street
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7
Continue on Kingston Street
649 ft · 31 sec · Kingston Street
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8
Turn left onto Essex Street
74 m · 8 sec · Essex Street
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9
Turn slight right
26 m · 5 sec
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10
Take the ramp right toward I 93 South: Quincy
818 ft · 24 sec
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11
Merge slight right onto John F. Fitzgerald Expressway
1.2 mi · 2 min · John F. Fitzgerald Expressway
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12
Continue on Southeast Expressway
8 mi · 11 min · Southeast Expressway
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13
Keep slight right to continue on I 93 South, US 1 South: Providence Rhode Island
3.4 mi · 5 min
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14
Take the exit slight left toward MA 24 South: Fall River
1.1 km · 1 min
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15
Continue on Amvets Highway
17.7 mi · 20 min · Amvets Highway
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16
Take the exit slight right toward I 495 South: Cape Cod
1.2 km · 2 min
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17
Merge slight left
19 mi · 22 min
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18
Continue straight
2.9 mi · 3 min
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19
Take the exit slight right toward US 6, MA 28: Onset, Wareham
1128 ft · 39 sec
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20
Keep slight right to continue on US 6, MA 28: Onset, Wareham
126 m · 15 sec
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21
Turn straight onto Maple Springs Road
598 ft · 12 sec · Maple Springs Road
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22
Continue on Cranberry Highway
2515 ft · 1 min · Cranberry Highway
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23
Turn right onto Depot Street
1538 ft · 44 sec · Depot Street
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24
Turn slight left onto Onset Avenue
1.5 mi · 3 min · Onset Avenue
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25
Arrive at your destination
0 m · 1 sec · Onset Avenue
Car Route Details
A richer read on the saved driving route between Boston and Onset.
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 495 South
Merge slight left
19 mi · 00h 22m
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.
Rain Showers Likely leaving Boston and Rain Showers Likely near Onset.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Boston to Onset?
The road trip is about 57 miles (91.7 km) and usually takes 01h 14m 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?
West Bridgewater is a useful midpoint, sitting about 28.5 miles from Boston and 28.5 miles from Onset.
How much longer is the road route than the straight-line distance?
The direct path is about 47.3 miles (76.2 km), while the road route adds roughly 9.7 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 4:00 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $7.82 one way or $15.64 round trip. Estimated CO2 is about 17.9 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers Likely around Boston and Rain Showers Likely near Onset.
Stop Ideas Near West Bridgewater
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to West Bridgewater.
Route 128 station
Back Bay station
South Station
North Station
Flight Path Map
This map shows the direct air route between Boston and Onset. Straight-line distance: 47.34 mi (76.18 km).
#1 Boston
The twenty-first most populous city in the United States and the center of the Boston metropolitan area.
| Population | 691,531 |
| Coordinates | 42.3584300, -71.0597700 |
| Altitude | 14 |
| Country | United States |
#2 Onset
Census designated place
| Population | 1,573 |
| Coordinates | 41.7417700, -70.6578100 |
| Altitude | 4 |
| Country | United States |
End: Onset (-70.65781, 41.74177)
Estimated Travel Time
Distance: 92 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 53m |
| 40 mph (64.37 km/h) | 01h 25m |
| 50 mph (80.47 km/h) | 01h 08m |
| 60 mph (96.56 km/h) | 00h 57m |
| 70 mph (112.65 km/h) | 00h 48m |
| 80 mph (129 km/h) | 00h 42m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $7.82 | $15.64 |
| Mid-grade | $4.40 | $8.84 | $17.68 |
| Premium | $4.80 | $9.65 | $19.29 |
| Diesel | $4.49 | $9.02 | $18.04 |
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 Massachusetts · Apr 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.