How far is Alton, NH from Londonderry, NH?
The driving distance from Alton, NH to Londonderry, NH is about 56.5 miles (91 km), with a travel time of about 01h 07m by car.
- The straight-line flight distance is about 41.3 miles (66.5 km).
- For a round trip, plan for roughly 02h 15m 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 07m.
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 Alton and Londonderry.
Turn-by-Turn Driving Directions
Step-by-step road directions between Alton and Londonderry.
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1
Start on the route
102 m · 27 sec
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2
Turn right onto Main Street
1343 ft · 38 sec · Main Street
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3
Enter the roundabout and take exit 1 toward the route
80 m · 7 sec
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4
Exit the roundabout
20 mi · 31 min
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5
Enter the roundabout and take exit 2 toward Epsom Circle
58 m · 5 sec · Suncook Valley Highway
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6
Exit the rotary onto Suncook Valley Highway
4.3 mi · 7 min · Suncook Valley Highway
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7
Continue on Route 28
1.3 mi · 2 min · Route 28
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8
Continue on Pinewood Road
3.1 mi · 5 min · Pinewood Road
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9
At the end of the road, turn left onto Allenstown Road
1480 ft · 37 sec · Allenstown Road
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10
Continue on Hooksett Road
2.2 mi · 4 min · Hooksett Road
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11
Turn slight right onto Hooksett Village
77 m · 9 sec
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12
Turn straight onto College Park Drive
2332 ft · 1 min · College Park Drive
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13
Continue on Main Street
1272 ft · 39 sec · Main Street
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14
Turn right onto Riverside Street
1560 ft · 59 sec · Riverside Street
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15
Turn left onto West River Road
1787 ft · 44 sec · West River Road
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16
Turn right onto Hackett Hill Road
1333 ft · 35 sec · Hackett Hill Road
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17
Take the ramp right
128 m · 11 sec
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18
Keep slight left
2636 ft · 1 min
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19
Continue on I 93 South
1211 ft · 30 sec
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20
Merge slight left onto Everett Turnpike
1.6 km · 2 min · Everett Turnpike
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21
Keep slight right to continue on I 93 South: Salem, Boston
7.7 mi · 10 min
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22
Keep slight left to continue on Alan B Shepard Highway
4 mi · 5 min · Alan B Shepard Highway
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23
Take the exit slight right toward NH 28: North Londonderry
1366 ft · 33 sec
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24
Keep slight right
577 ft · 14 sec
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25
Turn right onto Rockingham Road
1 mi · 2 min · Rockingham Road
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26
Turn slight left onto Smith Lane
699 ft · 36 sec · Smith Lane
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27
Turn left onto Mammoth Road
3.5 mi · 7 min · Mammoth Road
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28
Arrive at your destination
0 m · 1 sec · Mammoth Road
Car Route Details
A richer read on the saved driving route between Alton and Londonderry.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
Main Street
Exit the roundabout
20 mi · 00h 31m
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.
Areas Of Frost leaving Alton and Sunny near Londonderry.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Alton to Londonderry?
The road trip is about 56.5 miles (91 km) and usually takes 01h 07m 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?
Allenstown is a useful midpoint, sitting about 25.8 miles from Alton and 30.7 miles from Londonderry.
How much longer is the road route than the straight-line distance?
The direct path is about 41.3 miles (66.5 km), while the road route adds roughly 15.2 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 4:14 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $7.85 one way or $15.70 round trip. Estimated CO2 is about 17.7 kg one way.
What should you check before leaving?
Before you leave, expect Areas Of Frost around Alton and Sunny near Londonderry.
Stop Ideas Near Allenstown
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 Allenstown.
Concord, New Hampshire
Manchester, New Hampshire
Tilton, New Hampshire
Durham–UNH station
Flight Path Map
This map shows the direct air route between Alton and Londonderry. Straight-line distance: 41.33 mi (66.52 km).
#1 Alton
Town in New Hampshire (United States)
| Population | 5,364 |
| Coordinates | 43.4523000, -71.2175700 |
| Altitude | 165 |
| 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: Mammoth Road (-71.374062, 42.865057)
Estimated Travel Time
Distance: 91 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 53m |
| 40 mph (64.37 km/h) | 01h 24m |
| 50 mph (80.47 km/h) | 01h 07m |
| 60 mph (96.56 km/h) | 00h 56m |
| 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 | $3.95 | $7.85 | $15.70 |
| Mid-grade | $4.46 | $8.87 | $17.74 |
| Premium | $4.86 | $9.67 | $19.33 |
| Diesel | $6.00 | $11.93 | $23.87 |
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 · 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.