How far is Stony Brook, NY from Mount Vernon, NY?
The driving distance from Stony Brook, NY to Mount Vernon, NY is about 55.3 miles (89 km), with a travel time of about 01h 24m by car.
- The straight-line flight distance is about 36.4 miles (58.5 km).
- For a round trip, plan for roughly 02h 48m 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 24m.
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.
Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Stony Brook and Mount Vernon.
Turn-by-Turn Driving Directions
Step-by-step road directions between Stony Brook and Mount Vernon.
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1
Start on Cedar Street
20 m · 2 sec · Cedar Street
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2
Turn left onto Christian Avenue
2555 ft · 51 sec · Christian Avenue
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3
Continue on Main Street
1.1 km · 1 min · Main Street
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4
Continue on North Country Road
1.1 km · 1 min · North Country Road
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5
Continue on Smithtown-Port Jefferson Road
1.5 km · 2 min · Smithtown-Port Jefferson Road
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6
Turn slight left onto North Country Road
3.4 mi · 6 min · North Country Road
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7
Continue on Hauppauge Road
1.3 mi · 2 min · Hauppauge Road
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8
Continue on Hauppauge Boulevard
1.5 km · 1 min · Hauppauge Boulevard
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9
At the end of the road, turn right onto Townline Road
128 m · 9 sec · Townline Road
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10
Keep slight left to continue on Wheeler Road
1.5 mi · 2 min · Wheeler Road
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11
Turn right onto LIE North Service Road
2816 ft · 54 sec · LIE North Service Road
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12
Take the ramp slight left toward I 495 West: New York
1303 ft · 32 sec
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13
Merge slight left onto Long Island Expressway
28.3 mi · 38 min · Long Island Expressway
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14
Take the exit slight right toward Cross Island Parkway, Whitestone Bridge, Kennedy Airport
1267 ft · 27 sec
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15
Keep slight right to continue on Cross Island Parkway North, Whitestone Bridge
1604 ft · 38 sec
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16
Merge slight left onto Cross Island Parkway
3.1 mi · 5 min · Cross Island Parkway
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17
Take the exit slight right toward I 295 North: Throgs Neck Bridge, Bronx, New England
2905 ft · 1 min
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18
Merge slight left onto Throgs Neck Bridge
1.8 mi · 3 min · Throgs Neck Bridge
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19
Continue on Throgs Neck Expressway
1.1 km · 1 min · Throgs Neck Expressway
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20
Keep slight right to continue on Throgs Neck Expressway
1.8 mi · 3 min · Throgs Neck Expressway
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21
Merge slight right onto Bruckner Expressway
1 mi · 2 min · Bruckner Expressway
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22
Continue on New England Thruway
1074 ft · 18 sec · New England Thruway
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23
Take the exit slight right toward Hutchinson Parkway North
131 m · 15 sec
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24
Keep slight left to continue on Hutchinson River Parkway North
912 ft · 31 sec
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25
Merge slight left onto Hutchinson River Parkway
1.9 mi · 3 min · Hutchinson River Parkway
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26
Take the exit slight right toward US 1: Pelham Manor
900 ft · 22 sec
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27
Keep slight left to continue on US 1 South: Shopping Center, Saint Paul's Church
80 m · 15 sec
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28
Turn left onto Boston Post Road
901 ft · 30 sec · Boston Post Road
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29
Turn right onto Pelham Parkway
1474 ft · 36 sec · Pelham Parkway
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30
Continue on South Fulton Avenue
1.3 mi · 3 min · South Fulton Avenue
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31
Turn left onto East 1st Street
2337 ft · 55 sec · East 1st Street
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32
Turn right onto Gramatan Avenue
110 m · 14 sec · Gramatan Avenue
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33
Turn right onto East Prospect Avenue
17 m · 2 sec · East Prospect Avenue
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34
Arrive at your destination
0 m · 1 sec · East Prospect Avenue
Car Route Details
A richer read on the saved driving route between Stony Brook and Mount Vernon.
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
28.3 mi · 00h 38m
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.
Sunny leaving Stony Brook and Sunny near Mount Vernon.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Stony Brook to Mount Vernon?
The road trip is about 55.3 miles (89 km) and usually takes 01h 24m 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?
Hicksville is a useful midpoint, sitting about 26.7 miles from Stony Brook and 28.6 miles from Mount Vernon.
How much longer is the road route than the straight-line distance?
The direct path is about 36.4 miles (58.5 km), while the road route adds roughly 18.9 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 3:42 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $8.67 one way or $17.35 round trip. Estimated CO2 is about 17.3 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Stony Brook and Sunny near Mount Vernon.
Stop Ideas Near Hicksville
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 Hicksville.
New Rochelle station
Stamford Transportation Center
Yonkers station
Pennsylvania Station
Flight Path Map
This map shows the direct air route between Stony Brook and Mount Vernon. Straight-line distance: 36.36 mi (58.51 km).
#1 Stony Brook
Public university in Stony Brook, New York, United States
| Population | 13,740 |
| Coordinates | 40.9256500, -73.1409400 |
| Altitude | 27 |
| Country | United States |
#2 Mount Vernon
The most populous city in Westchester County, New York.
| Population | 68,628 |
| Coordinates | 40.9126000, -73.8370800 |
| Altitude | 33 |
| Country | United States |
End: East Prospect Avenue (-73.83708, 40.912722)
Estimated Travel Time
Distance: 89 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 50m |
| 40 mph (64.37 km/h) | 01h 22m |
| 50 mph (80.47 km/h) | 01h 06m |
| 60 mph (96.56 km/h) | 00h 55m |
| 70 mph (112.65 km/h) | 00h 47m |
| 80 mph (129 km/h) | 00h 41m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.45 | $8.67 | $17.35 |
| Mid-grade | $4.98 | $9.71 | $19.43 |
| Premium | $5.38 | $10.49 | $20.99 |
| Diesel | $6.51 | $12.69 | $25.39 |
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 · Oct 15, 2026