How far is Harbor Isle, NY from Brookhaven, NY?
The driving distance from Harbor Isle, NY to Brookhaven, NY is about 45.5 miles (73.3 km), with a travel time of about 01h 05m by car.
- The straight-line flight distance is about 41.1 miles (66.1 km).
- For a round trip, plan for roughly 02h 11m 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 05m.
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.
Census-designated place in Suffolk County, New York
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers Likely
Rain Showers Likely
Driving Route Map
The map below follows the saved road route between Harbor Isle and Brookhaven.
Turn-by-Turn Driving Directions
Step-by-step road directions between Harbor Isle and Brookhaven.
-
1
Start on Kent Boulevard
39 m · 8 sec · Kent Boulevard
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2
Turn right onto Lincoln Avenue
800 ft · 35 sec · Lincoln Avenue
-
3
Turn right onto Island Parkway North
2943 ft · 1 min · Island Parkway North
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4
Continue on Long Beach Road
3.9 mi · 7 min · Long Beach Road
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5
Turn right onto Sunrise Highway
39.5 mi · 53 min · Sunrise Highway
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6
Take the exit slight right toward CR 21 South: Yaphank Avenue, Brookhaven
150 m · 19 sec
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7
Turn left onto Sunrise Hwy South Service Road
130 m · 16 sec · Sunrise Hwy South Service Road
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8
Turn right onto Yaphank Avenue
1426 ft · 43 sec · Yaphank Avenue
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9
Turn right onto Montauk Highway
2741 ft · 58 sec · Montauk Highway
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10
Turn left onto South Country Road
2057 ft · 50 sec · South Country Road
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11
Arrive at your destination
0 m · 1 sec · South Country Road
Car Route Details
A richer read on the saved driving route between Harbor Isle and Brookhaven.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Sunrise Highway
Turn right onto Sunrise Highway
39.5 mi · 00h 53m
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.
Rain Showers Likely leaving Harbor Isle and Rain Showers Likely near Brookhaven.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Harbor Isle to Brookhaven?
The road trip is about 45.5 miles (73.3 km) and usually takes 01h 05m 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?
North Babylon is a useful midpoint, sitting about 22.7 miles from Harbor Isle and 22.8 miles from Brookhaven.
How much longer is the road route than the straight-line distance?
The direct path is about 41.1 miles (66.1 km), while the road route adds roughly 4.4 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 4:18 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $6.45 one way or $12.91 round trip. Estimated CO2 is about 14.3 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers Likely around Harbor Isle and Rain Showers Likely near Brookhaven.
Stop Ideas Near North Babylon
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Town of Babylon History Museum at Old Town Hall
Babylon Town Hall Annex
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to North Babylon.
Stamford Transportation Center
New Rochelle station
Bridgeport
Yonkers station
Flight Path Map
This map shows the direct air route between Harbor Isle and Brookhaven. Straight-line distance: 41.09 mi (66.12 km).
#1 Harbor Isle
Census-designated place in Nassau County, New York
| Population | 1,301 |
| Coordinates | 40.6034400, -73.6645700 |
| Altitude | 0 |
| Country | United States |
#2 Brookhaven
This town in Suffolk County, New York, is the most populous in the state.
| Population | 479,883 |
| Coordinates | 40.7792700, -72.9153800 |
| Altitude | 3 |
| Country | United States |
End: Brookhaven (-72.91538, 40.77927)
Estimated Travel Time
Distance: 73 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 31m |
| 40 mph (64.37 km/h) | 01h 08m |
| 50 mph (80.47 km/h) | 00h 54m |
| 60 mph (96.56 km/h) | 00h 45m |
| 70 mph (112.65 km/h) | 00h 39m |
| 80 mph (129 km/h) | 00h 34m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.01 | $6.45 | $12.91 |
| Mid-grade | $4.48 | $7.21 | $14.43 |
| Premium | $4.86 | $7.83 | $15.65 |
| Diesel | $4.69 | $7.56 | $15.11 |
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 York · Apr 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.