How far is Castleton-on-Hudson, NY from Islip, NY?
The driving distance from Castleton-on-Hudson, NY to Islip, NY is about 175.6 miles (282.6 km), with a travel time of about 03h 17m by car.
- The straight-line flight distance is about 126.7 miles (203.9 km).
- For a round trip, plan for roughly 06h 35m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM EDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 03h 17m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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 Putnam County, New York
Route Weather Snapshot
Check the forecast at both ends before you head out.
Light Rain Likely then Chance Rain And Snow Showers
Rain Showers Likely
Driving Route Map
The map below follows the saved road route between Castleton-on-Hudson and Islip.
Turn-by-Turn Driving Directions
Step-by-step road directions between Castleton-on-Hudson and Islip.
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1
Start on Van Hoesen Road
2.5 mi · 4 min · Van Hoesen Road
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2
Turn slight right onto South Schodack Road
3 mi · 4 min · South Schodack Road
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3
Turn straight onto Schodack Landing Road
2875 ft · 56 sec · Schodack Landing Road
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4
Turn right
3 mi · 4 min
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5
Enter the roundabout and take exit 1 toward the route
31 m · 1 sec
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6
Exit the roundabout
18.8 mi · 26 min
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7
Turn left onto State Highway 82
4.8 mi · 7 min · State Highway 82
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8
Take the ramp slight right
1723 ft · 1 min
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9
Merge slight left onto Taconic State Parkway
42.8 mi · 58 min · Taconic State Parkway
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10
Take the exit slight right toward I 84 East: Danbury
1395 ft · 48 sec
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11
Merge slight left
15.5 mi · 18 min
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12
Take the exit slight right toward I 684 South: White Plains
3060 ft · 1 min
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13
Merge slight right
26.8 mi · 31 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 Castleton-on-Hudson 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.
Taconic State Parkway
Merge slight left onto Taconic State Parkway
42.8 mi · 00h 58m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Light Rain Likely then Chance Rain And Snow Showers leaving Castleton-on-Hudson and Rain Showers Likely near Islip.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Castleton-on-Hudson to Islip?
The road trip is about 175.6 miles (282.6 km) and usually takes 03h 17m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Brewster Hill is a useful midpoint, sitting about 89.2 miles from Castleton-on-Hudson and 86.4 miles from Islip.
How much longer is the road route than the straight-line distance?
The direct path is about 126.7 miles (203.9 km), while the road route adds roughly 48.9 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 6:00 AM to 8:00 AM EDT. If you want a more comfortable same-day return, try to leave by 10:24 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $24.86 one way or $49.71 round trip. Estimated CO2 is about 55.1 kg one way.
What should you check before leaving?
Before you leave, expect Light Rain Likely then Chance Rain And Snow Showers around Castleton-on-Hudson and Rain Showers Likely near Islip.
Stop Ideas Near Brewster Hill
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Danbury Fair
Danbury City Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Brewster Hill.
Croton–Harmon station
Stamford Transportation Center
Poughkeepsie station
Bridgeport
Flight Path Map
This map shows the direct air route between Castleton-on-Hudson and Islip. Straight-line distance: 126.7 mi (203.9 km).
#1 Castleton-on-Hudson
City in Rensselaer County, New York, United States of America
| Population | 1,451 |
| Coordinates | 42.5184100, -73.7512300 |
| Altitude | 46 |
| 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: Main Street (-73.210382, 40.729789)
Estimated Travel Time
Distance: 283 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 51m |
| 40 mph (64.37 km/h) | 04h 23m |
| 50 mph (80.47 km/h) | 03h 30m |
| 60 mph (96.56 km/h) | 02h 55m |
| 70 mph (112.65 km/h) | 02h 30m |
| 80 mph (129 km/h) | 02h 11m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.01 | $24.86 | $49.71 |
| Mid-grade | $4.48 | $27.78 | $55.56 |
| Premium | $4.86 | $30.14 | $60.28 |
| Diesel | $4.69 | $29.10 | $58.21 |
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.