How far is Londonderry, NH from Thornton, NH?
The driving distance from Londonderry, NH to Thornton, NH is about 80.1 miles (128.9 km), with a travel time of about 01h 36m by car.
- The straight-line flight distance is about 72.6 miles (116.9 km).
- For a round trip, plan for roughly 03h 13m 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 36m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Human settlement in United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy then Chance Rain Showers
Mostly Cloudy then Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Londonderry and Thornton.
Turn-by-Turn Driving Directions
Step-by-step road directions between Londonderry and Thornton.
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1
Start on Mammoth Road
3.5 mi · 7 min · Mammoth Road
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2
Turn right onto Smith Lane
699 ft · 31 sec · Smith Lane
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3
Turn straight onto Rockingham Road
1.2 mi · 2 min · Rockingham Road
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4
Turn left onto I 93 North
2701 ft · 1 min
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5
Merge slight left onto Alan B Shepard Highway
5.2 mi · 7 min · Alan B Shepard Highway
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6
Keep slight left to continue on I 93 North: Concord, Plymouth
7.1 mi · 9 min
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7
Keep slight left to continue on Everett Turnpike
10.2 mi · 12 min · Everett Turnpike
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8
Continue on Styles Bridges Highway
16.7 mi · 19 min · Styles Bridges Highway
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9
Continue on Sen Styles Bridges Highway
1.2 km · 47 sec · Sen Styles Bridges Highway
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10
Continue on Styles Bridges Highway
32.9 mi · 35 min · Styles Bridges Highway
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11
Take the exit slight right toward US 3: Thornton
1181 ft · 39 sec
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12
At the end of the road, turn left onto Daniel Webster Highway
1.8 mi · 3 min · Daniel Webster Highway
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13
Arrive at your destination
0 m · 1 sec · Daniel Webster Highway
Car Route Details
A richer read on the saved driving route between Londonderry and Thornton.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Styles Bridges Highway
Continue on Styles Bridges Highway
32.9 mi · 00h 35m
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 Cloudy then Chance Rain Showers leaving Londonderry and Mostly Cloudy then Chance Rain Showers near Thornton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Londonderry to Thornton?
The road trip is about 80.1 miles (128.9 km) and usually takes 01h 36m 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?
Canterbury is a useful midpoint, sitting about 40 miles from Londonderry and 40.1 miles from Thornton.
How much longer is the road route than the straight-line distance?
The direct path is about 72.6 miles (116.9 km), while the road route adds roughly 7.5 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 3:16 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $12.13 one way or $24.26 round trip. Estimated CO2 is about 25.2 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy then Chance Rain Showers around Londonderry and Mostly Cloudy then Chance Rain Showers near Thornton.
Stop Ideas Near Canterbury
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 Canterbury.
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Flight Path Map
This map shows the direct air route between Londonderry and Thornton. Straight-line distance: 72.61 mi (116.86 km).
#1 Londonderry
Town in Rockingham County, New Hampshire, United States of America
| Population | 26,646 |
| Coordinates | 42.8650900, -71.3739500 |
| Altitude | 128 |
| Country | United States |
#2 Thornton
Town in Grafton County, New Hampshire, United States
| Population | 2,553 |
| Coordinates | 43.8928500, -71.6759100 |
| Altitude | 184 |
| Country | United States |
End: Thornton (-71.67591, 43.89285)
Estimated Travel Time
Distance: 129 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 40m |
| 40 mph (64.37 km/h) | 02h 00m |
| 50 mph (80.47 km/h) | 01h 36m |
| 60 mph (96.56 km/h) | 01h 20m |
| 70 mph (112.65 km/h) | 01h 08m |
| 80 mph (129 km/h) | 00h 59m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.29 | $12.13 | $24.26 |
| Mid-grade | $4.85 | $13.73 | $27.45 |
| Premium | $5.29 | $14.98 | $29.96 |
| Diesel | $6.15 | $17.42 | $34.83 |
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 16, 2026