How far is Alstead, NH from Londonderry, NH?
The driving distance from Alstead, NH to Londonderry, NH is about 78 miles (125.5 km), with a travel time of about 02h 02m by car.
- The straight-line flight distance is about 53.6 miles (86.2 km).
- For a round trip, plan for roughly 04h 04m 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 02m.
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 New Hampshire
Route Weather Snapshot
Check the forecast at both ends before you head out.
Driving Route Map
The map below follows the saved road route between Alstead and Londonderry.
Turn-by-Turn Driving Directions
Step-by-step road directions between Alstead and Londonderry.
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1
Start on Mechanic Street
2995 ft · 1 min · Mechanic Street
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2
Continue on Forest Road
4.7 mi · 11 min · Forest Road
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3
Continue on NH Route 123
4.8 mi · 12 min · NH Route 123
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4
At the end of the road, turn right onto Dartmouth College Road
83 m · 7 sec · Dartmouth College Road
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5
Continue on State Route 10
1.5 km · 2 min · State Route 10
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6
Turn left onto Telephone Road
942 ft · 18 sec · Telephone Road
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7
Turn slight left onto Forest Road East
1519 ft · 29 sec · Forest Road East
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8
Continue on Route 123 North
7.4 mi · 14 min · Route 123 North
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9
At the end of the road, turn left onto Route 9
2.3 mi · 3 min · Route 9
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10
Continue on Keene Road
5.7 mi · 8 min · Keene Road
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11
Continue on West Main Street
1.9 mi · 3 min · West Main Street
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12
Turn straight onto Franklin Pierce Highway
16.3 mi · 22 min · Franklin Pierce Highway
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13
Merge slight left
7.9 mi · 10 min
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14
Take the exit slight right toward I 93 South Toll: Manchester, Boston
1 km · 1 min
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15
Merge slight right onto Everett Turnpike
5.7 mi · 7 min · Everett Turnpike
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16
Keep slight left to continue on Everett Turnpike
2 mi · 2 min · Everett Turnpike
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17
Keep slight right to continue on I 93 South: Salem, Boston
7.7 mi · 10 min
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18
Keep slight left to continue on Alan B Shepard Highway
4 mi · 5 min · Alan B Shepard Highway
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19
Take the exit slight right toward NH 28: North Londonderry
1366 ft · 33 sec
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20
Keep slight right
577 ft · 14 sec
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21
Turn right onto Rockingham Road
1 mi · 2 min · Rockingham Road
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22
Turn slight left onto Smith Lane
699 ft · 36 sec · Smith Lane
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23
Turn left onto Mammoth Road
3.5 mi · 7 min · Mammoth Road
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24
Arrive at your destination
0 m · 1 sec · Mammoth Road
Car Route Details
A richer read on the saved driving route between Alstead and Londonderry.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Franklin Pierce Highway
Turn straight onto Franklin Pierce Highway
16.3 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.
Sunny leaving Alstead and Clear near Londonderry.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Alstead to Londonderry?
The road trip is about 78 miles (125.5 km) and usually takes 02h 02m 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?
Henniker is a useful midpoint, sitting about 38.9 miles from Alstead and 39.1 miles from Londonderry.
How much longer is the road route than the straight-line distance?
The direct path is about 53.6 miles (86.2 km), while the road route adds roughly 24.4 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 2:26 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $11.76 one way or $23.52 round trip. Estimated CO2 is about 24.4 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Alstead and Clear near Londonderry.
Stop Ideas Near Henniker
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 Henniker.
Concord, New Hampshire
Manchester, New Hampshire
Tilton, New Hampshire
Nashua, NH
Flight Path Map
This map shows the direct air route between Alstead and Londonderry. Straight-line distance: 53.57 mi (86.22 km).
#1 Alstead
City in Cheshire County, New Hampshire, United States of America
| Population | 1,951 |
| Coordinates | 43.1489700, -72.3606400 |
| Altitude | 147 |
| Country | United States |
#2 Londonderry
Town in Rockingham County, New Hampshire, United States of America
| Population | 26,646 |
| Coordinates | 42.8650900, -71.3739500 |
| Altitude | 128 |
| Country | United States |
End: Londonderry (-71.37395, 42.86509)
Estimated Travel Time
Distance: 126 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 35m |
| 40 mph (64.37 km/h) | 01h 57m |
| 50 mph (80.47 km/h) | 01h 33m |
| 60 mph (96.56 km/h) | 01h 18m |
| 70 mph (112.65 km/h) | 01h 06m |
| 80 mph (129 km/h) | 00h 58m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.28 | $11.76 | $23.52 |
| Mid-grade | $4.84 | $13.30 | $26.60 |
| Premium | $5.29 | $14.54 | $29.09 |
| Diesel | $6.10 | $16.78 | $33.56 |
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 New Hampshire · Sep 15, 2026