How far is Commack, NY from Islip, NY?
The driving distance from Commack, NY to Islip, NY is about 13 miles (20.9 km), with a travel time of about 00h 18m by car.
- The straight-line flight distance is about 8.9 miles (14.4 km).
- For a round trip, plan for roughly 00h 36m 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 18m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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.
Slight Chance Rain Showers then Mostly Cloudy
Partly Sunny then Slight Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Commack and Islip.
Turn-by-Turn Driving Directions
Step-by-step road directions between Commack and Islip.
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1
Start on Commack Road
10 m · 7 sec · Commack Road
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2
Turn right onto Jericho Turnpike
708 ft · 14 sec · Jericho Turnpike
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3
Keep slight right to continue on Veterans Memorial Highway
2153 ft · 40 sec · Veterans Memorial Highway
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4
Take the ramp slight right toward SM South: Bay Shore
1110 ft · 27 sec
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5
Merge slight left onto Sunken Meadow State Parkway
1.5 mi · 2 min · Sunken Meadow State Parkway
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6
Continue on Sagtikos State Parkway
4.8 mi · 6 min · Sagtikos State Parkway
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7
Take the exit slight left toward SO East: East Islip
2886 ft · 1 min
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8
Merge slight right onto Heckscher State Parkway
3.3 mi · 4 min · Heckscher State Parkway
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9
Take the exit slight right toward NY 111 South: Islip
1446 ft · 35 sec
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10
Turn straight onto Islip Avenue
1.7 mi · 4 min · Islip Avenue
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11
At the end of the road, turn right onto Main Street
865 ft · 15 sec · Main Street
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12
Arrive at your destination
0 m · 1 sec · Main Street
Car Route Details
A richer read on the saved driving route between Commack 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.
Sagtikos State Parkway
Continue on Sagtikos State Parkway
4.82 mi · 00h 06m
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.
Slight Chance Rain Showers then Mostly Cloudy leaving Commack and Partly Sunny then Slight Chance Rain Showers near Islip.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Commack to Islip?
The road trip is about 13 miles (20.9 km) and usually takes 00h 18m 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?
Bay Wood is a useful midpoint, sitting about 6.5 miles from Commack and 6.5 miles from Islip.
How much longer is the road route than the straight-line distance?
The direct path is about 8.9 miles (14.4 km), while the road route adds roughly 4.1 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 7:00 AM to 7:00 PM EDT. If you want a more comfortable same-day return, try to leave by 7:54 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $1.84 one way or $3.69 round trip. Estimated CO2 is about 4.1 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Rain Showers then Mostly Cloudy around Commack and Partly Sunny then Slight Chance Rain Showers near Islip.
Stop Ideas Near Bay Wood
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Town of Babylon History Museum at Old Town Hall
Babylon Town Hall Annex
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Bay Wood.
Stamford Transportation Center
New Rochelle station
Bridgeport
Yonkers station
Flight Path Map
This map shows the direct air route between Commack and Islip. Straight-line distance: 8.92 mi (14.36 km).
#1 Commack
Census-designated place in Suffolk County, New York
| Population | 36,124 |
| Coordinates | 40.8428800, -73.2928900 |
| Altitude | 40 |
| 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: 21 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 25m |
| 40 mph (64.37 km/h) | 00h 19m |
| 50 mph (80.47 km/h) | 00h 15m |
| 60 mph (96.56 km/h) | 00h 12m |
| 70 mph (112.65 km/h) | 00h 11m |
| 80 mph (129 km/h) | 00h 09m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.01 | $1.84 | $3.69 |
| Mid-grade | $4.48 | $2.06 | $4.12 |
| Premium | $4.86 | $2.24 | $4.47 |
| Diesel | $4.69 | $2.16 | $4.32 |
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 22, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.