How far is Brookhaven, NY from Old Westbury, NY?
The driving distance from Brookhaven, NY to Old Westbury, NY is about 40 miles (64.3 km), with a travel time of about 00h 58m by car.
- The straight-line flight distance is about 35.8 miles (57.6 km).
- For a round trip, plan for roughly 01h 57m 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 00h 58m.
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.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Brookhaven and Old Westbury.
Turn-by-Turn Driving Directions
Step-by-step road directions between Brookhaven and Old Westbury.
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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
30.1 mi · 40 min · Long Island Expressway
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8
Take the exit slight right toward NY 25 East: Syosset
1462 ft · 36 sec
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9
Turn straight onto North Marginal Road
2086 ft · 34 sec · North Marginal Road
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10
Turn straight onto Jericho Turnpike
129 m · 7 sec · Jericho Turnpike
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11
Turn slight right onto Store Hill Road
724 ft · 21 sec · Store Hill Road
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12
Continue on Store Hill Road
1.8 mi · 4 min · Store Hill Road
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13
Turn right onto Post Road
1.2 km · 2 min · Post Road
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14
Turn sharp left onto Wheatley Road
2916 ft · 1 min · Wheatley Road
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15
Turn left
13 m · 3 sec
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16
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Brookhaven and Old Westbury.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Long Island Expressway
Merge slight left onto Long Island Expressway
30.1 mi · 00h 40m
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 near Old Westbury.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Brookhaven to Old Westbury?
The road trip is about 40 miles (64.3 km) and usually takes 00h 58m 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?
Brentwood is a useful midpoint, sitting about 19.9 miles from Brookhaven and 20 miles from Old Westbury.
How much longer is the road route than the straight-line distance?
The direct path is about 35.8 miles (57.6 km), while the road route adds roughly 4.2 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 4:32 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.65 one way or $11.31 round trip. Estimated CO2 is about 12.5 kg one way.
What should you check before leaving?
Before arriving, the latest forecast around Old Westbury is Mostly Sunny.
Stop Ideas Near Brentwood
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 Brentwood.
Stamford Transportation Center
Bridgeport
New Rochelle station
Yonkers station
Flight Path Map
This map shows the direct air route between Brookhaven and Old Westbury. Straight-line distance: 35.8 mi (57.61 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 Old Westbury
Village in Nassau County, New York, United States of America
| Population | 4,105 |
| Coordinates | 40.7887100, -73.5995700 |
| Altitude | 50 |
| Country | United States |
End: Old Westbury (-73.59957, 40.78871)
Estimated Travel Time
Distance: 64 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 19m |
| 40 mph (64.37 km/h) | 00h 59m |
| 50 mph (80.47 km/h) | 00h 47m |
| 60 mph (96.56 km/h) | 00h 39m |
| 70 mph (112.65 km/h) | 00h 34m |
| 80 mph (129 km/h) | 00h 29m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.01 | $5.65 | $11.31 |
| Mid-grade | $4.48 | $6.32 | $12.64 |
| Premium | $4.86 | $6.85 | $13.71 |
| Diesel | $4.69 | $6.62 | $13.24 |
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 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.