How far is Westville, NY from Islip, NY?
The driving distance from Westville, NY to Islip, NY is about 403.2 miles (648.9 km), with a travel time of about 06h 52m by car.
- The straight-line flight distance is about 298.8 miles (480.8 km).
- For a round trip, plan for roughly 13h 45m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 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 06h 52m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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.
City in Saratoga County, New York, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny then Slight Chance Rain Showers
Partly Sunny
Driving Route Map
The map below follows the saved road route between Westville and Islip.
Turn-by-Turn Driving Directions
Step-by-step road directions between Westville and Islip.
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1
Start on State Highway 37
1.8 mi · 2 min · State Highway 37
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2
Turn left onto County Highway 22
10.3 mi · 15 min · County Highway 22
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3
Merge slight right onto State Route 11
5.6 mi · 8 min · State Route 11
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4
Continue on West Main Street
1 mi · 3 min · West Main Street
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5
Continue on State Route 11
12.2 mi · 17 min · State Route 11
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6
Turn right onto Military Turnpike
23.5 mi · 32 min · Military Turnpike
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7
Turn left onto State Route 3
1.6 km · 2 min · State Route 3
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8
Take the ramp right
1575 ft · 38 sec
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9
Keep slight right
2094 ft · 51 sec
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10
Merge slight left onto Adirondack Northway
152 mi · 2 hr 57 min · Adirondack Northway
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11
Keep slight right to continue on I 87 South, I 90: Boston, Albany, New York, Buffalo
1694 ft · 32 sec
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12
Continue on I 87 South, I 90 West: New York, Buffalo
2619 ft · 51 sec
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13
Keep slight right to continue on I 87 South: New York
117.8 mi · 2 hr 17 min
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14
Keep slight right to continue on I 287 South, NJ 17 South: New Jersey
1.5 km · 60 sec
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15
Continue straight
2496 ft · 39 sec
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16
Keep slight left to continue on NJ 17 South: Mahwah
14.1 mi · 19 min
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17
Take the exit slight right toward NJ 4, GSP South: Paterson, Fort Lee, New York
566 ft · 19 sec
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18
Keep slight left to continue on NJ 4 East: Fort Lee, New York
2455 ft · 1 min
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19
Merge slight left
1417 ft · 24 sec
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20
Continue straight
6.4 mi · 9 min
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21
Take the exit slight left toward I 95 North: George Washington Bridge
1124 ft · 18 sec
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22
Merge slight left
1.2 km · 55 sec
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23
Keep slight left
1.3 km · 1 min
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24
Continue on George Washington Bridge (upper level)
3174 ft · 1 min · George Washington Bridge (upper level)
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25
Continue on Trans-Manhattan Expressway
1.2 km · 1 min · Trans-Manhattan Expressway
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26
Continue on Cross Bronx Expressway
4.7 mi · 6 min · Cross Bronx Expressway
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27
Keep slight right to continue on Cross Bronx Expressway
2 mi · 3 min · Cross Bronx Expressway
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28
Merge slight left onto Throgs Neck Expressway
3271 ft · 58 sec · Throgs Neck Expressway
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29
Continue on Throgs Neck Bridge
2 mi · 3 min · Throgs Neck Bridge
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30
Continue on Clearview Expressway
5 mi · 5 min · Clearview Expressway
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31
Continue on Hollis Court Boulevard
1.2 km · 1 min · Hollis Court Boulevard
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32
At the end of the road, turn left onto Jamaica Avenue
1117 ft · 35 sec · Jamaica Avenue
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33
Turn right onto Hempstead Avenue
1.4 km · 2 min · Hempstead Avenue
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34
Turn right onto 225th Street
69 m · 10 sec · 225th Street
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35
Take the ramp straight toward Cross Island Parkway South, Verrazano Bridge
1171 ft · 29 sec
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36
Merge slight left onto Cross Island Parkway
1.3 mi · 2 min · Cross Island Parkway
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37
Take the exit slight left toward Southern State Parkway East, Eastern Long Island
2383 ft · 1 min
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38
Merge slight left onto Southern State Parkway
24.5 mi · 31 min · Southern State Parkway
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39
Keep slight left to continue on Southern State Parkway
1072 ft · 16 sec · Southern State Parkway
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40
Take the exit slight right toward Bay Shore Road South, Bay Shore
1044 ft · 32 sec
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41
Turn straight onto Bay Shore Road
2667 ft · 1 min · Bay Shore Road
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42
Continue on Howells Road
1845 ft · 44 sec · Howells Road
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43
Turn straight onto Sunrise Highway
104 m · 7 sec · Sunrise Highway
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44
Keep slight right to continue on Howells Road
3115 ft · 2 min · Howells Road
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45
Continue on Roosevelt Street
1248 ft · 25 sec · Roosevelt Street
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46
Continue on 3rd Avenue
1 km · 1 min · 3rd Avenue
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47
At the end of the road, turn left onto East Main Street
1.1 mi · 2 min · East Main Street
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48
Continue on Montauk Highway
1014 ft · 17 sec · Montauk Highway
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49
Continue on Main Street
1.2 km · 1 min · Main Street
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50
Arrive at your destination
0 m · 1 sec · Main Street
Car Route Details
A richer read on the saved driving route between Westville and Islip.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Adirondack Northway
Merge slight left onto Adirondack Northway
152 mi · 02h 57m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Partly Sunny then Slight Chance Rain Showers leaving Westville 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 Westville to Islip?
The road trip is about 403.2 miles (648.9 km) and usually takes 06h 52m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Halfmoon is a useful midpoint, sitting about 199.9 miles from Westville and 203.3 miles from Islip.
How much longer is the road route than the straight-line distance?
The direct path is about 298.8 miles (480.8 km), while the road route adds roughly 104.4 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 7:30 AM EDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $57.05 one way or $114.10 round trip. Estimated CO2 is about 126.5 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny then Slight Chance Rain Showers around Westville and Partly Sunny near Islip.
Stop Ideas Near Halfmoon
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City Hall Lot
Albany City Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Halfmoon.
Schenectady
Albany–Rensselaer
Saratoga Springs, NY
Saratoga Springs station
Flight Path Map
This map shows the direct air route between Westville and Islip. Straight-line distance: 298.76 mi (480.81 km).
#1 Westville
Town in New York, United States
| Population | 1,816 |
| Coordinates | 44.9625400, -74.4168600 |
| Altitude | 61 |
| 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: 649 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 13h 26m |
| 40 mph (64.37 km/h) | 10h 04m |
| 50 mph (80.47 km/h) | 08h 03m |
| 60 mph (96.56 km/h) | 06h 43m |
| 70 mph (112.65 km/h) | 05h 45m |
| 80 mph (129 km/h) | 05h 01m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.01 | $57.05 | $114.10 |
| Mid-grade | $4.48 | $63.76 | $127.53 |
| Premium | $4.86 | $69.17 | $138.34 |
| Diesel | $4.69 | $66.80 | $133.59 |
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.