How far is Seabrook, NH from Londonderry, NH?
The driving distance from Seabrook, NH to Londonderry, NH is about 38 miles (61.2 km), with a travel time of about 00h 41m by car.
- The straight-line flight distance is about 25.5 miles (41.1 km).
- For a round trip, plan for roughly 01h 22m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM EDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 41m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Town in New Hampshire, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Seabrook and Londonderry.
Turn-by-Turn Driving Directions
Step-by-step road directions between Seabrook and Londonderry.
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1
Start on the route
21 m · 7 sec
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2
Turn left onto Lafayette Road
585 ft · 20 sec · Lafayette Road
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3
Turn right
2393 ft · 50 sec
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4
Take the ramp right toward I 95 South: Boston
1614 ft · 39 sec
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5
Merge slight left onto Blue Star Turnpike
2.4 mi · 3 min · Blue Star Turnpike
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6
Keep slight right to continue on I 495 South: Worcester
16.3 mi · 19 min
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7
Take the exit slight right toward MA 213: Methuen, Salem New Hampshire, Manchester-Boston Regional Airport
1302 ft · 37 sec
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8
Continue on Loop Connector
3.3 mi · 4 min · Loop Connector
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9
Take the exit slight right toward I 93 North: Concord New Hampshire
1920 ft · 37 sec
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10
Merge slight right
1.7 mi · 2 min
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11
Continue straight
9.9 mi · 11 min
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12
Take the exit slight right toward NH 102: Derry, Londonderry
1778 ft · 1 min
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13
Keep slight left to continue on NH 102 West: Londonderry, Nashua
54 m · 8 sec
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14
Turn left onto Nashua Road
3120 ft · 2 min · Nashua Road
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15
Turn right onto Gilcreast Road
1.2 km · 2 min · Gilcreast Road
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16
Continue on Pillsbury Road
787 ft · 22 sec · Pillsbury Road
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17
Continue on Pillsbury Road
1 mi · 2 min · Pillsbury Road
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18
Turn right onto Mammoth Road
23 m · 2 sec · Mammoth Road
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19
Arrive at your destination
0 m · 1 sec · Mammoth Road
Car Route Details
A richer read on the saved driving route between Seabrook 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.
I 495 South
Keep slight right to continue on I 495 South: Worcester
16.3 mi · 00h 19m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Mostly Sunny leaving Seabrook and Mostly Sunny near Londonderry.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Seabrook to Londonderry?
The road trip is about 38 miles (61.2 km) and usually takes 00h 41m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Salem is a useful midpoint, sitting about 19 miles from Seabrook and 19 miles from Londonderry.
How much longer is the road route than the straight-line distance?
The direct path is about 25.5 miles (41.1 km), while the road route adds roughly 12.5 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 7:00 AM to 7:00 PM EDT. If you want a more comfortable same-day return, try to leave by 7:08 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.29 one way or $10.57 round trip. Estimated CO2 is about 11.9 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Seabrook and Mostly Sunny near Londonderry.
Stop Ideas Near Salem
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 Salem.
Haverhill station
Newburyport, Massachusetts
Nashua, NH
Exeter station
Flight Path Map
This map shows the direct air route between Seabrook and Londonderry. Straight-line distance: 25.54 mi (41.1 km).
#1 Seabrook
Town in New Hampshire, United States
| Population | 8,844 |
| Coordinates | 42.8948100, -70.8711600 |
| Altitude | 15 |
| 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: 61 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 15m |
| 40 mph (64.37 km/h) | 00h 57m |
| 50 mph (80.47 km/h) | 00h 45m |
| 60 mph (96.56 km/h) | 00h 38m |
| 70 mph (112.65 km/h) | 00h 32m |
| 80 mph (129 km/h) | 00h 28m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $5.29 | $10.57 |
| Mid-grade | $4.46 | $5.97 | $11.94 |
| Premium | $4.86 | $6.51 | $13.02 |
| Diesel | $6.00 | $8.04 | $16.07 |
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 01, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.