How far is Plainfield, NH from Londonderry, NH?
The driving distance from Plainfield, NH to Londonderry, NH is about 92.7 miles (149.2 km), with a travel time of about 02h 00m by car.
- The straight-line flight distance is about 67.7 miles (109 km).
- For a round trip, plan for roughly 04h 00m 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 00m.
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.
Human settlement in Merrimack County, New Hampshire, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Plainfield and Londonderry.
Turn-by-Turn Driving Directions
Step-by-step road directions between Plainfield and Londonderry.
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1
Start on Route 12A
7.6 mi · 15 min · Route 12A
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2
Take the ramp right
1423 ft · 35 sec
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3
Merge slight left
59.9 mi · 1 hr 10 min
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4
Take the exit slight right toward I 93 South Toll: Manchester, Boston
1 km · 1 min
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5
Merge slight right onto Everett Turnpike
5.7 mi · 7 min · Everett Turnpike
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6
Keep slight left to continue on Everett Turnpike
2 mi · 2 min · Everett Turnpike
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7
Keep slight right to continue on I 93 South: Salem, Boston
7.7 mi · 10 min
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8
Keep slight left to continue on Alan B Shepard Highway
4 mi · 5 min · Alan B Shepard Highway
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9
Take the exit slight right toward NH 28: North Londonderry
1366 ft · 33 sec
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10
Keep slight right
577 ft · 14 sec
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11
Turn right onto Rockingham Road
1 mi · 2 min · Rockingham Road
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12
Turn slight left onto Smith Lane
699 ft · 36 sec · Smith Lane
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13
Turn left onto Mammoth Road
3.5 mi · 7 min · Mammoth Road
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14
Arrive at your destination
0 m · 1 sec · Mammoth Road
Car Route Details
A richer read on the saved driving route between Plainfield and Londonderry.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Route 12A
Merge slight left
59.9 mi · 01h 10m
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 Sunny leaving Plainfield and Clear near Londonderry.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Plainfield to Londonderry?
The road trip is about 92.7 miles (149.2 km) and usually takes 02h 00m 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?
Warner is a useful midpoint, sitting about 46.3 miles from Plainfield and 46.4 miles from Londonderry.
How much longer is the road route than the straight-line distance?
The direct path is about 67.7 miles (109 km), while the road route adds roughly 25 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 2:30 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $13.98 one way or $27.97 round trip. Estimated CO2 is about 29.1 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Plainfield and Clear near Londonderry.
Stop Ideas Near Warner
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 Warner.
Concord, New Hampshire
Tilton, New Hampshire
New Hampton, New Hampshire
Manchester, New Hampshire
Flight Path Map
This map shows the direct air route between Plainfield and Londonderry. Straight-line distance: 67.71 mi (108.97 km).
#1 Plainfield
Town in Sullivan County, New Hampshire, United States
| Population | 2,419 |
| Coordinates | 43.5342400, -72.3562000 |
| Altitude | 159 |
| 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: 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 | $4.28 | $13.98 | $27.97 |
| Mid-grade | $4.84 | $15.81 | $31.63 |
| Premium | $5.29 | $17.30 | $34.59 |
| Diesel | $6.10 | $19.95 | $39.91 |
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