How far is Brookhaven, NY from Mamaroneck, NY?
The driving distance from Brookhaven, NY to Mamaroneck, NY is about 66.1 miles (106.4 km), with a travel time of about 01h 35m by car.
- The straight-line flight distance is about 44.3 miles (71.3 km).
- For a round trip, plan for roughly 03h 10m 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 35m.
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 New York State
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny then Slight Chance Rain Showers
Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Brookhaven and Mamaroneck.
Turn-by-Turn Driving Directions
Step-by-step road directions between Brookhaven and Mamaroneck.
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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
41.4 mi · 56 min · Long Island Expressway
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8
Take the exit slight right toward Cross Island Parkway, Whitestone Bridge, Kennedy Airport
1267 ft · 27 sec
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9
Keep slight right to continue on Cross Island Parkway North, Whitestone Bridge
1604 ft · 38 sec
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10
Merge slight left onto Cross Island Parkway
3.1 mi · 5 min · Cross Island Parkway
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11
Take the exit slight right toward I 295 North: Throgs Neck Bridge, Bronx, New England
2905 ft · 1 min
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12
Merge slight left onto Throgs Neck Bridge
1.8 mi · 3 min · Throgs Neck Bridge
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13
Continue on Throgs Neck Expressway
1.1 km · 1 min · Throgs Neck Expressway
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14
Keep slight right to continue on Throgs Neck Expressway
1.8 mi · 3 min · Throgs Neck Expressway
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15
Merge slight right onto Bruckner Expressway
1 mi · 2 min · Bruckner Expressway
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16
Continue on New England Thruway
1074 ft · 18 sec · New England Thruway
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17
Take the exit slight right toward Hutchinson Parkway North
131 m · 15 sec
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18
Keep slight left to continue on Hutchinson River Parkway North
912 ft · 31 sec
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19
Merge slight left onto Hutchinson River Parkway
1.5 mi · 2 min · Hutchinson River Parkway
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20
Take the exit slight right toward I 95 North: New Haven
1570 ft · 44 sec
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21
Merge slight left onto New England Thruway
5.9 mi · 8 min · New England Thruway
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22
Take the exit slight right toward Fenimore Road, Mamaroneck
1118 ft · 26 sec
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23
Turn right onto Fenimore Road
1.1 km · 2 min · Fenimore Road
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24
At the end of the road, turn left onto West Boston Post Road
1596 ft · 29 sec · West Boston Post Road
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25
Arrive at your destination
0 m · 1 sec · East Boston Post Road
Car Route Details
A richer read on the saved driving route between Brookhaven and Mamaroneck.
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
41.4 mi · 00h 56m
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.
Partly Sunny then Slight Chance Rain Showers leaving Brookhaven and Chance Rain Showers near Mamaroneck.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Brookhaven to Mamaroneck?
The road trip is about 66.1 miles (106.4 km) and usually takes 01h 35m 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?
Syosset is a useful midpoint, sitting about 33 miles from Brookhaven and 33.1 miles from Mamaroneck.
How much longer is the road route than the straight-line distance?
The direct path is about 44.3 miles (71.3 km), while the road route adds roughly 21.8 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 3:20 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $9.34 one way or $18.68 round trip. Estimated CO2 is about 20.7 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny then Slight Chance Rain Showers around Brookhaven and Chance Rain Showers near Mamaroneck.
Stop Ideas Near Syosset
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 Syosset.
Stamford Transportation Center
New Rochelle station
Yonkers station
Pennsylvania Station
Flight Path Map
This map shows the direct air route between Brookhaven and Mamaroneck. Straight-line distance: 44.28 mi (71.26 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 Mamaroneck
Town in Westchester County, New York
| Population | 29,343 |
| Coordinates | 40.9487100, -73.7326300 |
| Altitude | 0 |
| Country | United States |
End: Mamaroneck (-73.73263, 40.94871)
Estimated Travel Time
Distance: 106 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 12m |
| 40 mph (64.37 km/h) | 01h 39m |
| 50 mph (80.47 km/h) | 01h 19m |
| 60 mph (96.56 km/h) | 01h 06m |
| 70 mph (112.65 km/h) | 00h 56m |
| 80 mph (129 km/h) | 00h 49m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.01 | $9.34 | $18.68 |
| Mid-grade | $4.48 | $10.44 | $20.88 |
| Premium | $4.86 | $11.33 | $22.65 |
| Diesel | $4.69 | $10.94 | $21.87 |
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 22, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.