How far is Brookhaven, NY from Greenlawn, NY?
The driving distance from Brookhaven, NY to Greenlawn, NY is about 28 miles (45.1 km), with a travel time of about 00h 43m by car.
- The straight-line flight distance is about 24.3 miles (39.1 km).
- For a round trip, plan for roughly 01h 27m 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 43m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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.
Hamlet and census-designated place on Long Island in the Town of Islip, New York, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers Likely
Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Brookhaven and Greenlawn.
Turn-by-Turn Driving Directions
Step-by-step road directions between Brookhaven and Greenlawn.
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1
Start on South Country Road
1912 ft · 47 sec · South Country Road
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2
Continue on South Country Road
108 m · 17 sec · South Country Road
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3
Turn straight onto Montauk Highway
1.3 km · 1 min · Montauk Highway
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4
Turn left onto Horseblock Road
4.2 mi · 6 min · Horseblock Road
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5
Turn left onto Express Drive North
873 ft · 15 sec · Express Drive North
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6
Take the ramp straight toward I 495 WEST: New York
1278 ft · 22 sec
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7
Merge slight left onto Long Island Expressway
10.2 mi · 14 min · Long Island Expressway
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8
Take the exit slight right toward NY 454: Patchogue, Commack
1275 ft · 27 sec
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9
Turn straight onto Express Drive North
1153 ft · 28 sec · Express Drive North
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10
Turn right onto Veterans Memorial Highway
3.7 mi · 5 min · Veterans Memorial Highway
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11
Keep slight right to continue on Veterans Highway
3237 ft · 52 sec · Veterans Highway
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12
Continue on Veterans Memorial Highway
1.7 mi · 3 min · Veterans Memorial Highway
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13
Turn left onto Jericho Turnpike
2.3 mi · 5 min · Jericho Turnpike
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14
Turn right onto Elwood Road
2985 ft · 1 min · Elwood Road
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15
Turn left onto Cuba Hill Road
2979 ft · 59 sec · Cuba Hill Road
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16
Continue on Cuba Hill Road
1.5 mi · 3 min · Cuba Hill Road
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17
Turn right onto Broadway
2703 ft · 1 min · Broadway
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18
Turn left onto Smith Street
6 m · 1 sec · Smith Street
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19
Arrive at your destination
0 m · 1 sec · Smith Street
Car Route Details
A richer read on the saved driving route between Brookhaven and Greenlawn.
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.
Long Island Expressway
Merge slight left onto Long Island Expressway
10.2 mi · 00h 14m
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.
Rain Showers Likely leaving Brookhaven and Showers And Thunderstorms near Greenlawn.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Brookhaven to Greenlawn?
The road trip is about 28 miles (45.1 km) and usually takes 00h 43m 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?
Ronkonkoma is a useful midpoint, sitting about 14 miles from Brookhaven and 14 miles from Greenlawn.
How much longer is the road route than the straight-line distance?
The direct path is about 24.3 miles (39.1 km), while the road route adds roughly 3.7 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 7:02 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.97 one way or $7.94 round trip. Estimated CO2 is about 8.8 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers Likely around Brookhaven and Showers And Thunderstorms near Greenlawn.
Stop Ideas Near Ronkonkoma
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Town of Babylon History Museum at Old Town Hall
Brookhaven Town Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Ronkonkoma.
Bridgeport
Stamford Transportation Center
Union Station
New Rochelle station
Flight Path Map
This map shows the direct air route between Brookhaven and Greenlawn. Straight-line distance: 24.32 mi (39.14 km).
#1 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 |
#2 Greenlawn
Census-designated place in Suffolk County, New York
| Population | 13,742 |
| Coordinates | 40.8689900, -73.3651200 |
| Altitude | 69 |
| Country | United States |
End: Greenlawn (-73.36512, 40.86899)
Estimated Travel Time
Distance: 45 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 56m |
| 40 mph (64.37 km/h) | 00h 42m |
| 50 mph (80.47 km/h) | 00h 33m |
| 60 mph (96.56 km/h) | 00h 28m |
| 70 mph (112.65 km/h) | 00h 24m |
| 80 mph (129 km/h) | 00h 20m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.01 | $3.97 | $7.94 |
| Mid-grade | $4.48 | $4.44 | $8.87 |
| Premium | $4.86 | $4.81 | $9.62 |
| Diesel | $4.69 | $4.65 | $9.29 |
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.