How far is Southold, NY from Islip, NY?
The driving distance from Southold, NY to Islip, NY is about 54.1 miles (87.1 km), with a travel time of about 01h 07m by car.
- The straight-line flight distance is about 47 miles (75.7 km).
- For a round trip, plan for roughly 02h 14m 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 07m.
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 Suffolk County, New York
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers
Rain Showers Likely
Driving Route Map
The map below follows the saved road route between Southold and Islip.
Turn-by-Turn Driving Directions
Step-by-step road directions between Southold and Islip.
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1
Start on Youngs Avenue
2961 ft · 1 min · Youngs Avenue
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2
Turn left onto Middle Road
8.9 mi · 13 min · Middle Road
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3
Continue on Sound Avenue
5.3 mi · 9 min · Sound Avenue
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4
Turn left onto Northville Turnpike
3.4 mi · 7 min · Northville Turnpike
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5
At the end of the road, turn left onto Roanoke Avenue
1300 ft · 50 sec · Roanoke Avenue
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6
At the end of the road, turn right onto East Main Street
35 m · 8 sec · East Main Street
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7
Turn left onto Peconic Avenue
635 ft · 17 sec · Peconic Avenue
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8
Turn right onto Nugent Drive
732 ft · 20 sec · Nugent Drive
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9
Take the exit slight left toward CR 51 south: Suffolk County Offices, Criminal/Surrogate/Family Courts, Suffolk County Community College - Riverhead Campus, East Moriches
88 m · 7 sec
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10
Merge slight left onto Center Drive South
1.7 mi · 3 min · Center Drive South
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11
Continue on East Moriches-Riverhead Road
5.3 mi · 7 min · East Moriches-Riverhead Road
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12
Take the ramp slight right toward NY 27 West: New York
1.1 km · 1 min
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13
Merge slight left onto Sunrise Highway
24.2 mi · 33 min · Sunrise Highway
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14
Take the exit slight right toward NY 111: Islip, Smithtown
593 ft · 15 sec
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15
Turn straight onto Sunrise Highway
3070 ft · 58 sec · Sunrise Highway
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16
Turn slight right onto NY 111 South: Islip
713 ft · 35 sec
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17
Turn straight onto Islip Avenue
1.4 km · 2 min · Islip Avenue
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18
At the end of the road, turn right onto Main Street
865 ft · 15 sec · Main Street
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19
Arrive at your destination
0 m · 1 sec · Main Street
Car Route Details
A richer read on the saved driving route between Southold and Islip.
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.
Sunrise Highway
Merge slight left onto Sunrise Highway
24.2 mi · 00h 33m
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.
Rain Showers leaving Southold 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 Southold to Islip?
The road trip is about 54.1 miles (87.1 km) and usually takes 01h 07m 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?
East Moriches is a useful midpoint, sitting about 26.2 miles from Southold and 27.9 miles from Islip.
How much longer is the road route than the straight-line distance?
The direct path is about 47 miles (75.7 km), while the road route adds roughly 7.1 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 4:16 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $7.66 one way or $15.31 round trip. Estimated CO2 is about 17 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers around Southold and Rain Showers Likely near Islip.
Stop Ideas Near East Moriches
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to East Moriches.
Bridgeport
Union Station
Old Saybrook station
Stamford Transportation Center
Flight Path Map
This map shows the direct air route between Southold and Islip. Straight-line distance: 47.04 mi (75.71 km).
#1 Southold
Town in New York
| Population | 22,282 |
| Coordinates | 41.0648200, -72.4262000 |
| Altitude | 7 |
| 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: 87 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 48m |
| 40 mph (64.37 km/h) | 01h 21m |
| 50 mph (80.47 km/h) | 01h 04m |
| 60 mph (96.56 km/h) | 00h 54m |
| 70 mph (112.65 km/h) | 00h 46m |
| 80 mph (129 km/h) | 00h 40m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.01 | $7.66 | $15.31 |
| Mid-grade | $4.48 | $8.56 | $17.12 |
| Premium | $4.86 | $9.28 | $18.57 |
| Diesel | $4.69 | $8.97 | $17.93 |
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.