Origin
Islip, NY
Late night in Islip on Saturday
Local time
2:30 AM
EDT
Current temp
44°F
Unavailable
Live forecast
Trip from Islip, NY to Mount Sinai, NY
Compiled and reviewed by the Trip.ovh planning team at COD Solutions Oy · Last reviewed Apr 18, 2026 · Editorial standards
Drive Time
30m
Distance
20.3 mi
33 km
Drive Score
6/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$3
one way
EV Charging
Unknown
Best Time to Leave
4 AM
0h 28m
★
6 AM
0h 30m
8 AM
0h 35m
10 AM
0h 32m
12 PM
0h 31m
3 PM
0h 32m
5 PM
0h 35m
8 PM
0h 29m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Islip, NY
Wikimedia Commons
Mount Sinai, NY
Wikimedia Commons
Trip Overview
Islip, NY to Mount Sinai, NY is 20.3 miles and takes about 30 minutes via Nesconset Highway, with a fuel budget near $3 and enough daylight to finish in a day. This short trip stays within New York's Northeast region, offering a straightforward local drive. It's a quick hop perfect for a single day, allowing you to cover the distance without feeling rushed. Consider this route if you're looking for an uncomplicated journey between two points on Long Island.
About the Cities
Starting in Islip, NY
Full guide →Founded 1683
Islip (pronounced "ICE-lip") is a town on Long Island in the state of New York. Located within Suffolk County, the Town of Islip includes the villages of Brightwaters, Islandia, Ocean Beach and Saltaire. It also includes numerous hamlets including Bay Shore and Sayville which are ferry terminals for Fire Island. Other prominent communities are Bayport, Brentwood, Central Islip, Hauppauge, Islip village (the town seat), and Ronkonkoma.
Top landmarks
- • Bayport Aerodrome — airport in Suffolk County, New York, United States
- • Connetquot River State Park Preserve — state park in New York
- • Modesty — oyster-dredging sloop built in Long Island
Arriving in Mount Sinai, NY
Full guide →Mt. Sinai is a small town on the east coast of Long Island in New York, bordering the north shore of the Long Island Sound.
City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 30m. Total distance: 20.3 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
30m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (0%). Some complex stretches to watch for.
Scenic Drive
Turn-heavy local drive route profile with national parks nearby.
Drive Character
This route is characterized by its 'turn-heavy local drive' profile, with zero highway share. You'll primarily navigate Nesconset Highway, Islip Avenue, and Nesconset-Port Jefferson Highway. The longest uninterrupted stretch you'll encounter is 7.7 miles on Nesconset Highway. Expect a driving experience that involves frequent turns and local road conditions rather than high-speed highway travel.
This route has more turning and local-road decision points than a simple highway run.
There are about 14 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Nesconset Highway is the longest continuous segment at about 7.7 miles.
How Hard Is This Drive?
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. You will hit about 6 points where you need to pay attention to lane position or signs. The trickiest moment comes around 0.2 miles in near NY 111 / Islip Avenue.
Driving Effort
5/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 20.3 miles you will encounter 6 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: at 0.2 miles (NY 111 / Islip Avenue): Lane positioning matters here; at 7.4 miles (NY 111 / Hauppauge Boulevard): Lane positioning matters here; at 18.9 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
Critical Maneuvers
5 of 6 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
5
0.2 mi into trip
|
~0m in
|
NY 111 / Islip Avenue
Turn left onto NY 111 / Islip Avenue
Lane positioning matters here
Use the left lane.
5
7.4 mi into trip
|
~12m in
|
NY 111 / Hauppauge Boulevard
Turn left onto NY 111 / Hauppauge Boulevard
Lane positioning matters here
Use the left lane.
6
18.9 mi into trip
|
~27m in
Take the exit toward Crystal Brook Hollow Road NORTH
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the left lane.
Toward Crystal Brook Hollow Road NORTH
5
19 mi into trip
|
~27m in
|
Crystal Brook Hollow Road
Turn left onto Crystal Brook Hollow Road
Lane positioning matters here
Use the straight / right lanes.
4
19.5 mi into trip
|
~28m in
|
North Country Road
At end of road, turn right onto North Country Road
Navigation decision point
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Islip, NY to Mount Sinai, NY, road signs begin pointing toward Crystal Brook Hollow Road North along the way.
Crystal Brook Hollow Road North
18.9 mi in
|
~27m
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Nesconset Highway | 7.7 mi | 9m |
| Islip Avenue | 4 mi | 7m |
| Nesconset-Port Jefferson Highway | 3.5 mi | 4m |
| Wheeler Road | 1.6 mi | 2m |
| Joshuas Path | 1.4 mi | 2m |
| Shore Road West | 0.7 mi | 1m |
| Crystal Brook Hollow Road | 0.5 mi | <1m |
| Hauppauge Boulevard | 0.4 mi | <1m |
Longest stretch:
Nesconset Highway
— 7.7 mi, about 9m
Turn-by-Turn Driving Directions
Step-by-step road directions between Islip, NY and Mount Sinai, NY.
1
Start on NY 27A
0.2 mi
·
21 sec
·
Main Street
2
Turn left onto NY 111
4.0 mi
·
7 min
·
Islip Avenue
Use the left lane.
3
Continue on NY 111
1.4 mi
·
2 min
·
Joshuas Path
4
Continue on NY 111
1.6 mi
·
2 min
·
Wheeler Road
5
Continue on NY 111
0.1 mi
·
17 sec
·
Townline Road
Use the left lane.
6
Turn left onto NY 111
0.4 mi
·
35 sec
·
Hauppauge Boulevard
Use the left lane.
7
Turn slight right onto NY 347
1.3 mi
·
2 min
·
Nesconset-Port Jefferson Highway
8
Continue on NY 347
7.7 mi
·
9 min
·
Nesconset Highway
Use the left lane.
9
Continue on NY 347
2.2 mi
·
2 min
·
Nesconset-Port Jefferson Highway
10
Take the exit
438 ft
·
15 sec
Toward Crystal Brook Hollow Road NORTH
Use the left lane.
11
Turn left onto Crystal Brook Hollow Road
0.5 mi
·
52 sec
·
Crystal Brook Hollow Road
Use the straight / right lanes.
12
At end of road, turn right onto North Country Road
0.2 mi
·
19 sec
·
North Country Road
13
Turn left onto Shore Road West
0.7 mi
·
1 min
·
Shore Road West
14
Arrive at destination
Shore Road
Fuel & Cost
Regular Gas
$3.34 one way
$6.68 round trip
$4.18/gal
25.4 MPG avg
7 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.52 | $3.61 | $7.23 |
| premium | $4.92 | $3.93 | $7.87 |
| diesel | $5.61 | $4.48 | $8.96 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$3
Estimated CO2 emission: 7.1 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $2 in charging · 0 stops · 71% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 6.1 | 0 | $2.13 | $0.97 |
| Efficient EV | 5.1 | 0 | $1.78 | $0.81 |
| EV Truck/SUV | 8.1 | 0 | $2.84 | $1.30 |
Gas CO2
7 kg
EV CO2
2 kg (71% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Destination
Mount Sinai, NY
Late night in Mount Sinai on Saturday
Local time
2:30 AM
EDT
Current temp
54°F
Unavailable
Live forecast
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
10 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
30m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from Islip, NY to Mount Sinai, NY covers 20.3 miles and takes about 30m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Nesconset Highway, Islip Avenue, Nesconset-Port Jefferson Highway. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 10.1 miles from Islip, NY. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $3.34 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Leave by 9 AM and you'll arrive before lunch. Even a 4 PM departure gets you there before dark in summer.
This drive requires moderate attention. Across 20.3 miles you will encounter 6 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
The main spots that need attention: at 0.2 miles (NY 111 / Islip Avenue): Lane positioning matters here; at 7.4 miles (NY 111 / Hauppauge Boulevard): Lane positioning matters here; at 18.9 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
On the drive from Islip, NY to Mount Sinai, NY, road signs begin pointing toward Crystal Brook Hollow Road North along the way.
Yes. Nearby national parks include Fire Island National Seashore.
How this page is built
Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, and NPS for national parks. See our methodology for refresh cadence and limitations.
Was this helpful?
Thanks for your feedback!
Your tip has been submitted. Thanks!
/500
Recent Tips
·
Explore More
Continue From Mount Sinai, NY
More trips to Mount Sinai, NY
Explore more options from Islip, NY or browse trips ending in Mount Sinai, NY.
Looking for more statewide routes? Browse NY road trips.