How far is Brookhaven, NY from Fort Montgomery, NY?
The driving distance from Brookhaven, NY to Fort Montgomery, NY is about 100.7 miles (162 km), with a travel time of about 02h 16m by car.
- The straight-line flight distance is about 67.6 miles (108.8 km).
- For a round trip, plan for roughly 04h 33m 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 02h 16m.
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 Nassau County, New York
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers Likely
Rain Showers
Driving Route Map
The map below follows the saved road route between Brookhaven and Fort Montgomery.
Turn-by-Turn Driving Directions
Step-by-step road directions between Brookhaven and Fort Montgomery.
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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 left to continue on Cross Bronx Expressway
6.6 mi · 9 min · Cross Bronx Expressway
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15
Keep slight left to continue on Trans-Manhattan Expressway
1.1 km · 1 min · Trans-Manhattan Expressway
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16
Continue on George Washington Bridge (upper level)
3167 ft · 60 sec · George Washington Bridge (upper level)
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17
Continue straight
2659 ft · 48 sec
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18
Keep slight right to continue on Palisades Interstate Parkway
37.4 mi · 48 min · Palisades Interstate Parkway
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19
Enter the roundabout and take exit 3 toward the route
528 ft · 8 sec
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20
Exit the rotary
1.4 km · 1 min
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21
Arrive at your destination
0 m · 1 sec · United States Route 9W
Car Route Details
A richer read on the saved driving route between Brookhaven and Fort Montgomery.
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.
Rain Showers Likely leaving Brookhaven and Rain Showers near Fort Montgomery.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Brookhaven to Fort Montgomery?
The road trip is about 100.7 miles (162 km) and usually takes 02h 16m 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?
East Atlantic Beach is a useful midpoint, sitting about 50.3 miles from Brookhaven and 50.4 miles from Fort Montgomery.
How much longer is the road route than the straight-line distance?
The direct path is about 67.6 miles (108.8 km), while the road route adds roughly 33.1 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 1:56 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $14.23 one way or $28.46 round trip. Estimated CO2 is about 31.5 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers Likely around Brookhaven and Rain Showers near Fort Montgomery.
Stop Ideas Near East Atlantic Beach
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Radio City Music Hall
The Yard: City Hall Park NYC
CITY HALL LOBBY
Town Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to East Atlantic Beach.
New Rochelle station
Pennsylvania Station
Yonkers station
Stamford Transportation Center
Flight Path Map
This map shows the direct air route between Brookhaven and Fort Montgomery. Straight-line distance: 67.62 mi (108.82 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 Fort Montgomery
Census-designated place in Orange County, New York
| Population | 1,571 |
| Coordinates | 41.3314800, -73.9868100 |
| Altitude | 49 |
| Country | United States |
End: Fort Montgomery (-73.98681, 41.33148)
Estimated Travel Time
Distance: 162 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 21m |
| 40 mph (64.37 km/h) | 02h 31m |
| 50 mph (80.47 km/h) | 02h 00m |
| 60 mph (96.56 km/h) | 01h 40m |
| 70 mph (112.65 km/h) | 01h 26m |
| 80 mph (129 km/h) | 01h 15m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.01 | $14.23 | $28.46 |
| Mid-grade | $4.48 | $15.91 | $31.82 |
| Premium | $4.86 | $17.26 | $34.51 |
| Diesel | $4.69 | $16.66 | $33.33 |
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.