How far is Mahopac, NY from Islip, NY?
The driving distance from Mahopac, NY to Islip, NY is about 85.2 miles (137.1 km), with a travel time of about 02h 04m by car.
- The straight-line flight distance is about 52.1 miles (83.8 km).
- For a round trip, plan for roughly 04h 08m 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 04m.
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.
The fourth most populous borough of New York City.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Partly Sunny
Driving Route Map
The map below follows the saved road route between Mahopac and Islip.
Turn-by-Turn Driving Directions
Step-by-step road directions between Mahopac and Islip.
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1
Start on the route
27 m · 8 sec
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2
Turn left onto Bucks Hollow Road
985 ft · 29 sec · Bucks Hollow Road
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3
Turn left onto Kennicut Hill Road
1 mi · 2 min · Kennicut Hill Road
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4
Continue on Lovell Street
2.9 mi · 7 min · Lovell Street
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5
At the end of the road, turn left onto Primrose Drive
147 m · 14 sec · Primrose Drive
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6
Continue on Primrose Street
2.6 mi · 6 min · Primrose Street
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7
Keep slight right to continue on Primrose Street
62 m · 5 sec · Primrose Street
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8
Turn straight onto Somerstown Turnpike
3014 ft · 57 sec · Somerstown Turnpike
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9
Turn left onto Woods Bridge Road
1.4 mi · 2 min · Woods Bridge Road
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10
Continue on Cross River Road
726 ft · 16 sec · Cross River Road
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11
Take the exit right
1 km · 1 min
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12
Continue on I 684: White Plains
1102 ft · 27 sec
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13
Merge slight left
15.9 mi · 19 min
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14
Keep slight left to continue on Hutchinson River Parkway, New York City
1.5 mi · 2 min
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15
Merge slight right onto Hutchinson River Parkway
7.7 mi · 11 min · Hutchinson River Parkway
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16
Keep slight right to continue on Hutchinson River Parkway
5.9 mi · 9 min · Hutchinson River Parkway
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17
Take the exit slight right toward I 95 South: George Washington Bridge, Stillwell Avenue
43 m · 5 sec
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18
Keep slight right to continue on I 95 South: George Washington Bridge
1265 ft · 47 sec
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19
Merge slight left onto New England Thruway
1861 ft · 32 sec · New England Thruway
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20
Continue on Bruckner Expressway
1.3 mi · 2 min · Bruckner Expressway
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21
Keep slight left to continue on Throgs Neck Expressway
2.2 mi · 3 min · Throgs Neck Expressway
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22
Continue on Throgs Neck Bridge
2 mi · 3 min · Throgs Neck Bridge
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23
Continue on Clearview Expressway
5 mi · 5 min · Clearview Expressway
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24
Continue on Hollis Court Boulevard
1.2 km · 1 min · Hollis Court Boulevard
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25
At the end of the road, turn left onto Jamaica Avenue
1117 ft · 35 sec · Jamaica Avenue
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26
Turn right onto Hempstead Avenue
1.4 km · 2 min · Hempstead Avenue
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27
Turn right onto 225th Street
69 m · 10 sec · 225th Street
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28
Take the ramp straight toward Cross Island Parkway South, Verrazano Bridge
1171 ft · 29 sec
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29
Merge slight left onto Cross Island Parkway
1.3 mi · 2 min · Cross Island Parkway
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30
Take the exit slight left toward Southern State Parkway East, Eastern Long Island
2383 ft · 1 min
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31
Merge slight left onto Southern State Parkway
24.5 mi · 31 min · Southern State Parkway
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32
Keep slight left to continue on Southern State Parkway
1072 ft · 16 sec · Southern State Parkway
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33
Take the exit slight right toward Bay Shore Road South, Bay Shore
1044 ft · 32 sec
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34
Turn straight onto Bay Shore Road
2667 ft · 1 min · Bay Shore Road
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35
Continue on Howells Road
1845 ft · 44 sec · Howells Road
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36
Turn straight onto Sunrise Highway
104 m · 7 sec · Sunrise Highway
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37
Keep slight right to continue on Howells Road
3115 ft · 2 min · Howells Road
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38
Continue on Roosevelt Street
1248 ft · 25 sec · Roosevelt Street
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39
Continue on 3rd Avenue
1 km · 1 min · 3rd Avenue
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40
At the end of the road, turn left onto East Main Street
1.1 mi · 2 min · East Main Street
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41
Continue on Montauk Highway
1014 ft · 17 sec · Montauk Highway
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42
Continue on Main Street
1.2 km · 1 min · Main Street
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43
Arrive at your destination
0 m · 1 sec · Main Street
Car Route Details
A richer read on the saved driving route between Mahopac and Islip.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Southern State Parkway
Merge slight left onto Southern State Parkway
24.5 mi · 00h 31m
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 leaving Mahopac and Partly Sunny near Islip.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Mahopac to Islip?
The road trip is about 85.2 miles (137.1 km) and usually takes 02h 04m 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?
The Bronx is a useful midpoint, sitting about 42.6 miles from Mahopac and 42.6 miles from Islip.
How much longer is the road route than the straight-line distance?
The direct path is about 52.1 miles (83.8 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 2:22 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $12.07 one way or $24.13 round trip. Estimated CO2 is about 26.7 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Mahopac and Partly Sunny near Islip.
Stop Ideas Near The Bronx
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
Diamond City Hall Photography
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to The Bronx.
Yonkers station
New Rochelle station
Pennsylvania Station
Pennsylvania Station
Flight Path Map
This map shows the direct air route between Mahopac and Islip. Straight-line distance: 52.09 mi (83.83 km).
#1 Mahopac
Hamlet in New York
| Population | 8,369 |
| Coordinates | 41.3723200, -73.7334600 |
| Altitude | 203 |
| Country | United States |
#2 Islip
This Long Island community is situated on the south shore of Suffolk County, New York, at an elevation of 13 feet.
| Population | 322,328 |
| Coordinates | 40.7298200, -73.2103900 |
| Altitude | 4 |
| Country | United States |
End: Islip (-73.21039, 40.72982)
Estimated Travel Time
Distance: 137 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 50m |
| 40 mph (64.37 km/h) | 02h 07m |
| 50 mph (80.47 km/h) | 01h 42m |
| 60 mph (96.56 km/h) | 01h 25m |
| 70 mph (112.65 km/h) | 01h 13m |
| 80 mph (129 km/h) | 01h 03m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.01 | $12.07 | $24.13 |
| Mid-grade | $4.48 | $13.49 | $26.98 |
| Premium | $4.86 | $14.63 | $29.26 |
| Diesel | $4.69 | $14.13 | $28.26 |
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 16, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.