How far is Islip, NY from Great River, NY?
The driving distance from Islip, NY to Great River, NY is about 3.6 miles (5.8 km), with a travel time of about 00h 07m by car.
- The straight-line flight distance is about 2.8 miles (4.5 km).
- For a round trip, plan for roughly 00h 15m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM EDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 07m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Hamlet and CDP in the Town of Islip, Suffolk County, New York
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Islip and Great River.
Turn-by-Turn Driving Directions
Step-by-step road directions between Islip and Great River.
-
1
Start on Main Street
2.1 mi · 3 min · Main Street
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2
Continue on Montauk Highway
1264 ft · 27 sec · Montauk Highway
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3
Turn right onto Great River Road
1.4 km · 2 min · Great River Road
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4
Turn right onto Church Road
800 ft · 42 sec · Church Road
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5
Turn left onto Woodhollow Road
1493 ft · 1 min · Woodhollow Road
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6
Turn left onto New Street
16 m · 2 sec · New Street
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7
Arrive at your destination
0 m · 1 sec · New Street
Car Route Details
A richer read on the saved driving route between Islip and Great River.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
Main Street
Start on Main Street
2.05 mi · 00h 03m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Sunny leaving Islip and Sunny near Great River.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Islip to Great River?
The road trip is about 3.6 miles (5.8 km) and usually takes 00h 07m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
East Islip is a useful midpoint, sitting about 1.8 miles from Islip and 1.8 miles from Great River.
How much longer is the road route than the straight-line distance?
The direct path is about 2.8 miles (4.5 km), while the road route adds roughly 0.8 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 7:00 AM to 7:00 PM EDT. If you want a more comfortable same-day return, try to leave by 8:14 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $0.52 one way or $1.04 round trip. Estimated CO2 is about 1.2 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Islip and Sunny near Great River.
Stop Ideas Near East Islip
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Town of Babylon History Museum at Old Town Hall
Brookhaven Town Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to East Islip.
Stamford Transportation Center
Bridgeport
New Rochelle station
Yonkers station
Flight Path Map
This map shows the direct air route between Islip and Great River. Straight-line distance: 2.83 mi (4.55 km).
#1 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 |
#2 Great River
Census-designated place in Suffolk County, New York
| Population | 1,489 |
| Coordinates | 40.7212100, -73.1576100 |
| Altitude | 4 |
| Country | United States |
End: Great River (-73.15761, 40.72121)
Estimated Travel Time
Distance: 6 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 07m |
| 40 mph (64.37 km/h) | 00h 05m |
| 50 mph (80.47 km/h) | 00h 04m |
| 60 mph (96.56 km/h) | 00h 03m |
| 70 mph (112.65 km/h) | 00h 03m |
| 80 mph (129 km/h) | 00h 02m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.01 | $0.52 | $1.04 |
| Mid-grade | $4.48 | $0.58 | $1.17 |
| Premium | $4.86 | $0.63 | $1.26 |
| Diesel | $4.69 | $0.61 | $1.22 |
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 11, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.