The drive from Sullivan, NY to Islip, NY covers 289.6 miles and takes about 6h 20m behind the wheel.
This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on NY 17, State Highway 8, Southern State Parkway for much of the mileage,
and the overall profile is highway-focused drive.
The longest uninterrupted segment is about 106 miles on NY 17.
At current regular gas prices, budget about $47.67 one way before food or hotel costs.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
144.8 miles from Sullivan, NY
A natural place for your longest stop of the day
, about 3h 9m into the drive
.
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
Doable as a same-day drive at 6h 20m. Total distance: 289.6 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
6h 20m drive, plan rest stops for pacing.
Drive Character
This is a 6h 20m highway drive covering 289.6 miles, with most of the trip on NY 17 and State Highway 8. The longest continuous stretch is about 106 miles on NY 17.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 71 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
NY 17 is the longest continuous segment at about 106 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on NY 17 and State Highway 8. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 201.1 miles in.
Driving Effort10/10
High effort - long or complex enough to need steady focus all day
Balances navigation complexity with total wheel time.
This is a demanding drive. With 38 significant decision points across 289.6 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 201.1 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 216.4 miles (NY 17): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 217.8 miles (NJ 17): Highway fork - watch signs carefully. Lane positioning matters here.
Critical Maneuvers
5 of 38 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
8
201.1 mi into trip|~4h 19m in
Keep slight left at fork toward I 87, NYST: Albany, New York City
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Toward I 87, NYST: Albany, New York City
9
216.4 mi into trip|~4h 38m in|NY 17
Keep slight right at fork onto NY 17 toward I 287 South, NJ 17 South: New Jersey
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 15
Toward I 287 South, NJ 17 South: New Jersey
8
217.8 mi into trip|~4h 39m in|NJ 17
Keep slight left at fork onto NJ 17 toward NJ 17 South: Mahwah
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left / straight lanes.
Exit 66
Toward NJ 17 South: Mahwah
8
246.8 mi into trip|~5h 19m in|I 295 / Cross Bronx Expressway
Keep slight right at fork onto I 295 / Cross Bronx Expressway toward I 295 South: Throgs Neck Bridge
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight left lanes.
Exit 6B
Toward I 295 South: Throgs Neck Bridge
9
285 mi into trip|~6h 11m in
Take the exit toward Bay Shore Road South, Bay Shore
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 41S
Toward Bay Shore Road South, Bay Shore
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Sullivan, NY and Islip, NY, road signs point toward Nyst: Albany, New York City, Gsp South: Paterson, Fort Lee, New York and Cross Island Parkway South - among others.
Nyst: Albany
201.1 mi in|~4h 19m
New York City
201.1 mi in|~4h 19m
Gsp South: Paterson
231.8 mi in|~4h 58m
Fort Lee
231.8 mi in|~4h 58m
New York
231.8 mi in|~4h 58m
Cross Island Parkway South
258.3 mi in|~5h 36m
Southern State Parkway East
259.8 mi in|~5h 38m
Eastern Long Island
259.8 mi in|~5h 38m
Main Roads
Road
Distance
Duration
NY 17
106 mi
2h 12m
State Highway 8
36.8 mi
41m
Southern State Parkway
24.7 mi
31m
NJ 17
14.1 mi
18m
New York State Thruway
13.7 mi
15m
County Road 16
11.8 mi
16m
State Route 80
8.8 mi
12m
Rexford Street
8.3 mi
9m
Longest stretch:
NY 17
— 106 mi, about 2h 12m
Turn-by-Turn Driving Directions
Step-by-step road directions between Sullivan, NY and Islip, NY.
1
Start on Canaseraga Road
63 ft·3 sec·Canaseraga Road
2
Turn right onto NY 5; NY 13
355 ft·5 sec·State Route 5
3
Continue on NY 5; NY 13
0.9 mi·1 min·East Genesee Street
4
Continue on NY 5; NY 13
0.7 mi·1 min·Genesee Street
Use the left lane.
5
Turn left onto NY 13
4.3 mi·6 min·Falls Boulevard
Use the left lane.
6
Continue on NY 13
4.2 mi·5 min·Gorge Road
7
Continue on NY 13
0.4 mi·54 sec·Sweetland Street
8
Continue on NY 13
0.3 mi·53 sec·Farnham Street
9
At end of road, turn right onto US 20; NY 13
0.4 mi·1 min·Albany Street
10
Turn left onto US 20; NY 13
0.2 mi·27 sec·Forman Street
11
Continue on NY 13
5.8 mi·7 min·Rippleton Road
12
Continue on NY 13
0.2 mi·25 sec·State Route 13
13
Turn left onto NY 13; NY 80
0.5 mi·1 min·Main Street
14
Continue on NY 13; NY 80
1.1 mi·1 min·McKinley Street
15
Continue on NY 13; NY 80
1.9 mi·2 min·State Route 13
16
Continue on NY 80
6.1 mi·8 min·State Route 80
17
Continue on NY 26; NY 80
2.7 mi·3 min·State Route 80
18
Continue on NY 26; NY 80
2.2 mi·3 min·State Highway 26
19
Turn left onto CR 16
12 mi·16 min·County Road 16
20
Turn left onto NY 23
1.2 mi·1 min·NY 23
21
Turn left onto CR 44
2.8 mi·3 min·County Road 44
22
Turn right onto NY 12
1.2 mi·1 min·State Highway 12
23
Continue on NY 12
0.6 mi·1 min·North Broad Street
24
Turn left onto NY 23
8.3 mi·9 min·Rexford Street
25
Turn right onto NY 8
18 mi·20 min·State Highway 8
26
Continue on NY 8
0.4 mi·29 sec·Airport Road
27
Continue on NY 8
19 mi·21 min·State Highway 8
28
Continue on NY 8; NY 10
0.3 mi·18 sec·Oak Street
29
Continue on NY 8; NY 10
0.4 mi·44 sec·State Highway 10
30
Take the exit
0.2 mi·27 sec
Toward NY 17 East
31
Merge onto NY 17
105 mi·2 hr 11 min·NY 17
Use the straight / slight right lanes.
32
Keep slight left at fork
0.7 mi·59 sec
Toward I 87, NYST: Albany, New York CityUse the slight right lane.
33
Keep slight right at fork
0.9 mi·1 min
Toward I 87 Toll South: New York CityUse the slight right lane.
34
Merge onto I 87
14 mi·15 min·New York State Thruway
Use the straight / slight right lanes.
35
Keep slight right at fork onto NY 17
0.9 mi·59 sec·NY 17
Exit 15Toward I 287 South, NJ 17 South: New JerseyUse the slight right lane.
36
Continue on I 287; NJ 17
0.5 mi·39 sec·I 287; NJ 17
37
Keep slight left at fork onto NJ 17
14 mi·18 min·NJ 17
Exit 66Toward NJ 17 South: MahwahUse the slight left / straight lanes.
38
Take the exit
0.1 mi·19 sec
Toward NJ 4, GSP South: Paterson, Fort Lee, New York
39
Keep slight left at fork
0.5 mi·1 min
Toward NJ 4 East: Fort Lee, New York
40
Merge onto NJ 4
0.3 mi·24 sec·NJ 4
Use the right lane.
41
Continue on NJ 4
6.4 mi·8 min·NJ 4
Use the straight / slight right lanes.
42
Take the exit
0.2 mi·18 sec
Toward I 95 North: George Washington BridgeUse the straight / slight left lanes.
43
Merge onto I 95 EXPR
0.7 mi·54 sec·I 95 EXPR
Use the straight / slight right lanes.
44
Keep slight left at fork onto I 95 EXPR
0.8 mi·1 min·I 95 EXPR
45
Continue on I 95; US 1; US 9
0.6 mi·1 min·George Washington Bridge (upper level)
Use the straight / slight right lanes.
46
Continue on I 95; US 1
0.7 mi·1 min·Trans-Manhattan Expressway
47
Continue on I 95; US 1
4.7 mi·6 min·Cross Bronx Expressway
Use the straight / slight right lanes.
48
Keep slight right at fork onto I 295
2.0 mi·2 min·Cross Bronx Expressway
Exit 6BToward I 295 South: Throgs Neck BridgeUse the straight / slight left lanes.
49
Merge onto I 295
0.6 mi·58 sec·Throgs Neck Expressway
50
Continue on I 295
2.0 mi·3 min·Throgs Neck Bridge
Use the straight / slight right lanes.
51
Continue on I 295
5.0 mi·5 min·Clearview Expressway
Use the straight / slight right lanes.
52
Continue on NY 24
0.7 mi·1 min·Hollis Court Boulevard
Use the straight lane.
53
At end of road, turn left onto NY 24
0.2 mi·35 sec·Jamaica Avenue
Use the left lane.
54
Turn right onto Hempstead Avenue
0.9 mi·2 min·Hempstead Avenue
55
Turn right onto 225th Street
228 ft·9 sec·225th Street
Use the right lane.
56
Take the ramp
0.2 mi·28 sec
Toward Cross Island Parkway South, Verrazano Bridge
57
Merge onto CI
1.3 mi·1 min·Cross Island Parkway
Use the straight / slight right lanes.
58
Take the exit
0.5 mi·1 min
Exit 25AToward Southern State Parkway East, Eastern Long IslandUse the slight left / straight lanes.
59
Merge onto SO
25 mi·31 min·Southern State Parkway
Use the straight / slight right lanes.
60
Keep slight left at fork onto SO
0.2 mi·16 sec·Southern State Parkway
Use the straight / slight right lanes.
61
Take the exit
0.2 mi·31 sec
Exit 41SToward Bay Shore Road South, Bay ShoreUse the slight right lane.
62
Turn straight onto CR 57
0.5 mi·1 min·Bay Shore Road
63
Continue on CR 57
0.3 mi·43 sec·Howells Road
64
Turn straight onto CR 57
341 ft·6 sec·Sunrise Highway
65
Keep slight right at fork onto CR 57
0.6 mi·1 min·Howells Road
Toward Howells Road SouthUse the right lane.
66
Continue on CR 57
0.2 mi·24 sec·Roosevelt Street
67
Continue on CR 57
0.7 mi·1 min·3rd Avenue
68
At end of road, turn left onto NY 27A
1.1 mi·1 min·East Main Street
69
Continue on Montauk Highway
0.2 mi·17 sec·Montauk Highway
70
Continue on NY 27A
0.8 mi·1 min·Main Street
71
Arrive at destination
NY 27A
Trip Plan
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 144.8 miles from Sullivan, NY, or about 3h 9m into the drive.
The longest continuous stretch on this route runs about 106 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 64 miles or 1h 31m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 144.8 miles or 3h 9m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 5h 6m
Traffic, exits, and arrival timing usually matter more near Islip, NY than in the middle of the route.
Before You Leave
+
Open the route before leaving Sullivan, NY so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Sullivan, NY
This is one driving day of about 289.6 miles and 6h 20m.
Your first comfortable stop window is around 64 miles from Sullivan, NY.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on NY 17 for about 106 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 144.8 mi from Sullivan, NY
· 3h 9m into the drive
The midpoint is around 144.8 miles from Sullivan, NY, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel check
Top up before NY 17 if your tank is already low. That segment runs about 106 miles.
Arriving in Islip, NY
The final approach into Islip, NY usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Islip, NY.
After long uninterrupted mileage, take five minutes before the last urban segment to reset and refocus on exits, merges, and city traffic.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
National Parks Near This Route
Worth a detour if your schedule allows.
General Grant National Memorial
National Memorial
The final resting place of President Ulysses S. Grant and his wife, Julia, is the largest mausoleum in North America. It testifies to a people’s gratitude for the man who ended the bloodiest conflict...
3 mi from route
~8 min detour
Free
near mile 239.7
Caution: Lower Crypt Access Subject to Safe Conditions
Merchant’s clerk, Revolutionary War soldier, first Secretary Treasury of the United States: Alexander Hamilton’s life is memorialized at The Grange, the home he built on a country estate in uptown Man...
3 mi from route
~7 min detour
Free
near mile 239.7
Before the 1960s, almost everything about living authentically as a lesbian, a bisexual person or a gay man was illegal. The Stonewall Uprising on June 28, 1969 is a milestone in the quest for civil r...
9 mi from route
~22 min detour
Free
near mile 239.7
The African Burial Ground stands as the oldest and largest known excavated burial site in North America for both free and enslaved Africans. It offers a profound testament to the enduring legacy of Af...
10 mi from route
~25 min detour
Free
near mile 239.7
Located at the southern tip of Manhattan, Castle Clinton marks the place where New York City began and reflects the growth of both the city and the nation. Built to defend the harbor during the War of...
11 mi from route
~27 min detour
Free
near mile 239.7
Here at Federal Hall, George Washington took the oath of office as the first President of the United States, marking the beginning of the American constitutional republic. This historic site served as...
11 mi from route
~26 min detour
Free
near mile 239.7
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$47.67 one way
$95.34 round trip
$4.18/gal25.4 MPG avg101 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.52
$51.55
$103.09
premium
$4.92
$56.13
$112.26
diesel
$5.61
$63.94
$127.88
Estimated Tolls: $23.23
George Washington Bridge
$16.00
Throgs Neck Bridge
$6.55
New York State Thruway
(13.7 mi)$0.68
Toll estimates based on average 2024-2025 rates. EZ-Pass/SunPass discounts may lower the actual cost.
Estimated Trip Cost (one way, 1 person)
Fuel
$48
Tolls
$23
Meals
$25–$50
Total
$96–$121
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 101.3 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $30 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
86.9
1
$30.41
$13.90
Efficient EV
72.4
0
$25.34
$11.58
EV Truck/SUV
115.8
1
$40.54
$18.53
Gas CO2
101 kg
EV CO2
34 kg (66% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
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.
Forecast as of Apr 13, 2026
Origin
Sullivan, NY
Morning
in Sullivan on Saturday
Local time
6:27 AM
EDT
Current temp
49°F
Unavailable
Live forecast
Destination
Islip, NY
Morning
in Islip on Saturday
Local time
6:27 AM
EDT
Current temp
63°F
Slight Chance Rain Showers
SW 15 mph16% chanceLive forecast
Flood Warning
Flood Warning issued April 13 at 11:26AM EDT until April 15 at 8:00AM EDT by NWS Binghamton NY
57°F
Ramapo, NY
145 mi in
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
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
14 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
6h 20m on the road
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from Sullivan, NY to Islip, NY covers 289.6 miles and takes about 6h 20m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are NY 17, State Highway 8, Southern State Parkway. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 144.8 miles from Sullivan, NY. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $47.67 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Start early — leave by 6-7 AM to arrive at a reasonable hour. This is a long drive — plan for a morning departure or consider splitting it into two days.
Plan about 1 meaningful break for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
This is a demanding drive. With 38 significant decision points across 289.6 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
The main spots that need attention: at 201.1 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 216.4 miles (NY 17): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 217.8 miles (NJ 17): Highway fork - watch signs carefully. Lane positioning matters here.
Between Sullivan, NY and Islip, NY, road signs point toward Nyst: Albany, New York City, Gsp South: Paterson, Fort Lee, New York and Cross Island Parkway South - among others.
Yes. Nearby national parks include General Grant National Memorial, Hamilton Grange National Memorial and Stonewall National Monument. There are 6 parks within detour distance of this route.
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.
