How far is Dennis, MA from Waltham, MA?
The driving distance from Dennis, MA to Waltham, MA is about 90.3 miles (145.3 km), with a travel time of about 01h 43m by car.
- The straight-line flight distance is about 69.4 miles (111.7 km).
- For a round trip, plan for roughly 03h 26m 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 43m.
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.
Coastal town in Plymouth County, Massachusetts, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Mostly Cloudy
Driving Route Map
The map below follows the saved road route between Dennis and Waltham.
Turn-by-Turn Driving Directions
Step-by-step road directions between Dennis and Waltham.
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1
Start on the route
59 m · 21 sec
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2
Turn left onto Route 6A
1.2 mi · 2 min · Route 6A
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3
Continue on Main Street
3.4 mi · 6 min · Main Street
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4
Turn left onto Willow Street
1 mi · 2 min · Willow Street
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5
Take the ramp left toward US 6 West: Boston, Providence, RI
1006 ft · 26 sec
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6
Merge slight left onto Mid Cape Highway
17.3 mi · 24 min · Mid Cape Highway
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7
Continue on Sagamore Bridge
2134 ft · 46 sec · Sagamore Bridge
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8
Continue on Pilgrim Highway
1336 ft · 20 sec · Pilgrim Highway
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9
Continue on Pilgrims Highway
42.3 mi · 53 min · Pilgrims Highway
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10
Continue on I 93 North: Boston
8.4 mi · 11 min
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11
Continue on John F. Fitzgerald Expressway
998 ft · 19 sec · John F. Fitzgerald Expressway
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12
Take the exit slight left toward South Station, Airport
2666 ft · 1 min
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13
Keep slight right to continue on South Station
2265 ft · 1 min
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14
Turn left
77 m · 15 sec
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15
At the end of the road, turn left onto Albany Street
11 m · 1 sec · Albany Street
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16
Take the ramp straight toward I 90 West: Mass Pike, Worcester
1206 ft · 29 sec
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17
Merge slight left onto Massachusetts Turnpike
6.1 mi · 9 min · Massachusetts Turnpike
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18
Take the exit slight right toward Newton, Watertown
1725 ft · 49 sec
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19
Keep slight right to continue on Watertown
82 m · 9 sec
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20
Turn slight right onto Centre Street
611 ft · 23 sec · Centre Street
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21
Continue on Galen Street
2502 ft · 58 sec · Galen Street
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22
Turn sharp left onto Main Street
2.9 mi · 6 min · Main Street
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23
Arrive at your destination
0 m · 1 sec · Main Street
Car Route Details
A richer read on the saved driving route between Dennis and Waltham.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Pilgrims Highway
Continue on Pilgrims Highway
42.3 mi · 00h 53m
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 Dennis and Mostly Cloudy near Waltham.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Dennis to Waltham?
The road trip is about 90.3 miles (145.3 km) and usually takes 01h 43m 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?
Kingston is a useful midpoint, sitting about 42.9 miles from Dennis and 47.4 miles from Waltham.
How much longer is the road route than the straight-line distance?
The direct path is about 69.4 miles (111.7 km), while the road route adds roughly 20.9 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 3:04 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $12.41 one way or $24.82 round trip. Estimated CO2 is about 28.3 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Dennis and Mostly Cloudy near Waltham.
Stop Ideas Near Kingston
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 Kingston.
Route 128 station
South Station
Back Bay station
North Station
Flight Path Map
This map shows the direct air route between Dennis and Waltham. Straight-line distance: 69.41 mi (111.71 km).
#1 Dennis
Town in Barnstable County, Massachusetts, United States
| Population | 13,890 |
| Coordinates | 41.7353900, -70.1939100 |
| Altitude | 5 |
| Country | United States |
#2 Waltham
A city in Middlesex County, Massachusetts.
| Population | 62,069 |
| Coordinates | 42.3764900, -71.2356100 |
| Altitude | 20 |
| Country | United States |
End: Main Street (-71.235588, 42.376412)
Estimated Travel Time
Distance: 145 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 00m |
| 40 mph (64.37 km/h) | 02h 15m |
| 50 mph (80.47 km/h) | 01h 48m |
| 60 mph (96.56 km/h) | 01h 30m |
| 70 mph (112.65 km/h) | 01h 17m |
| 80 mph (129 km/h) | 01h 07m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $12.41 | $24.82 |
| Mid-grade | $4.40 | $14.03 | $28.05 |
| Premium | $4.80 | $15.31 | $30.62 |
| Diesel | $4.49 | $14.32 | $28.63 |
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 · 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.