The drive from Unadilla, NY to Islip, NY covers 204.3 miles and takes about 4h 41m behind the wheel.
This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on NY 17, Southern State Parkway, NJ 17 for much of the mileage,
and the overall profile is highway-focused drive.
The longest uninterrupted segment is about 70.1 miles on NY 17.
At current regular gas prices, budget about $33.63 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
102.1 miles from Unadilla, NY
A natural place for your longest stop of the day
, about 2h 24m 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 4h 41m. Total distance: 204.3 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 41m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (76%). Some complex stretches to watch for.
Drive Character
This is a 4h 41m highway drive covering 204.3 miles, with most of the trip on NY 17 and Southern State Parkway. The longest continuous stretch is about 70.1 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 60 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 70.1 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on NY 17 and Southern State Parkway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 46.4 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 35 significant decision points across 204.3 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 46.4 miles: Lane positioning matters here; at 115.8 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 131.1 miles (NY 17): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 35 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
8
46.4 mi into trip|~1h 17m in
Take the ramp toward NY 17 East: New York City
Lane positioning matters here
Use the left lane.
Toward NY 17 East: New York City
8
115.8 mi into trip|~2h 40m 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
131.1 mi into trip|~2h 59m 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
132.5 mi into trip|~3h 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
9
199.7 mi into trip|~4h 32m 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 Unadilla, 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
115.8 mi in|~2h 40m
New York City
115.8 mi in|~2h 40m
Gsp South: Paterson
146.5 mi in|~3h 19m
Fort Lee
146.5 mi in|~3h 19m
New York
146.5 mi in|~3h 19m
Cross Island Parkway South
172.9 mi in|~3h 57m
Southern State Parkway East
174.5 mi in|~3h 59m
Eastern Long Island
174.5 mi in|~3h 59m
Main Roads
Road
Distance
Duration
NY 17
70.1 mi
1h 23m
Southern State Parkway
24.7 mi
31m
NJ 17
14.1 mi
18m
State Highway 206
13.7 mi
24m
New York State Thruway
13.7 mi
15m
Franklin-Walton Road
9 mi
12m
NY 357
7.6 mi
13m
NJ 4
6.7 mi
9m
Longest stretch:
NY 17
— 70.1 mi, about 1h 23m
Turn-by-Turn Driving Directions
Step-by-step road directions between Unadilla, NY and Islip, NY.
1
Start on Martin Brook Street
31 ft·7 sec·Martin Brook Street
2
Turn left onto NY 7
0.8 mi·1 min·Main Street
3
Turn right onto NY 357
7.6 mi·13 min·NY 357
4
Turn sharp right onto CR 21
9.0 mi·12 min·Franklin-Walton Road
5
Continue on CR 21
3.6 mi·4 min·West Brook Road
6
Continue on CR 21
0.1 mi·20 sec·Franklin Road
7
Turn right onto CR 21
0.9 mi·2 min·Townsend Street
8
At end of road, turn left onto NY 10; NY 206
242 ft·8 sec·Delaware Street
9
Turn right onto NY 206
0.1 mi·18 sec·Bridge Street
Use the right lane.
10
At end of road, turn left onto NY 206
0.9 mi·1 min·Stockton Avenue
11
Continue on NY 206
9.0 mi·16 min·State Highway 206
12
Continue on NY 30; NY 206
0.3 mi·47 sec·Bridge Street
13
Continue on NY 30; NY 206
2.8 mi·4 min·State Highway 30
14
Turn right onto NY 206; CR 7
4.6 mi·8 min·Cat Hollow Road
15
Continue on NY 206; CR 7
4.7 mi·8 min·State Highway 206
16
Continue on NY 206; CR 91
1.6 mi·2 min·Rockland Road
17
Continue on NY 206; CR 179
0.3 mi·33 sec·Old Route 17
18
Turn right onto CR 124
0.2 mi·21 sec·Stewart Avenue
19
Take the ramp
0.2 mi·26 sec
Toward NY 17 East: New York CityUse the left lane.
20
Merge onto NY 17
69 mi·1 hr 22 min·NY 17
Use the straight / slight right lanes.
21
Keep slight left at fork
0.7 mi·59 sec
Toward I 87, NYST: Albany, New York CityUse the slight right lane.
22
Keep slight right at fork
0.9 mi·1 min
Toward I 87 Toll South: New York CityUse the slight right lane.
23
Merge onto I 87
14 mi·15 min·New York State Thruway
Use the straight / slight right lanes.
24
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.
25
Continue on I 287; NJ 17
0.5 mi·39 sec·I 287; NJ 17
26
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.
27
Take the exit
0.1 mi·19 sec
Toward NJ 4, GSP South: Paterson, Fort Lee, New York
28
Keep slight left at fork
0.5 mi·1 min
Toward NJ 4 East: Fort Lee, New York
29
Merge onto NJ 4
0.3 mi·24 sec·NJ 4
Use the right lane.
30
Continue on NJ 4
6.4 mi·8 min·NJ 4
Use the straight / slight right lanes.
31
Take the exit
0.2 mi·18 sec
Toward I 95 North: George Washington BridgeUse the straight / slight left lanes.
32
Merge onto I 95 EXPR
0.7 mi·54 sec·I 95 EXPR
Use the straight / slight right lanes.
33
Keep slight left at fork onto I 95 EXPR
0.8 mi·1 min·I 95 EXPR
34
Continue on I 95; US 1; US 9
0.6 mi·1 min·George Washington Bridge (upper level)
Use the straight / slight right lanes.
35
Continue on I 95; US 1
0.7 mi·1 min·Trans-Manhattan Expressway
36
Continue on I 95; US 1
4.7 mi·6 min·Cross Bronx Expressway
Use the straight / slight right lanes.
37
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.
38
Merge onto I 295
0.6 mi·58 sec·Throgs Neck Expressway
39
Continue on I 295
2.0 mi·3 min·Throgs Neck Bridge
Use the straight / slight right lanes.
40
Continue on I 295
5.0 mi·5 min·Clearview Expressway
Use the straight / slight right lanes.
41
Continue on NY 24
0.7 mi·1 min·Hollis Court Boulevard
Use the straight lane.
42
At end of road, turn left onto NY 24
0.2 mi·35 sec·Jamaica Avenue
Use the left lane.
43
Turn right onto Hempstead Avenue
0.9 mi·2 min·Hempstead Avenue
44
Turn right onto 225th Street
228 ft·9 sec·225th Street
Use the right lane.
45
Take the ramp
0.2 mi·28 sec
Toward Cross Island Parkway South, Verrazano Bridge
46
Merge onto CI
1.3 mi·1 min·Cross Island Parkway
Use the straight / slight right lanes.
47
Take the exit
0.5 mi·1 min
Exit 25AToward Southern State Parkway East, Eastern Long IslandUse the slight left / straight lanes.
48
Merge onto SO
25 mi·31 min·Southern State Parkway
Use the straight / slight right lanes.
49
Keep slight left at fork onto SO
0.2 mi·16 sec·Southern State Parkway
Use the straight / slight right lanes.
50
Take the exit
0.2 mi·31 sec
Exit 41SToward Bay Shore Road South, Bay ShoreUse the slight right lane.
51
Turn straight onto CR 57
0.5 mi·1 min·Bay Shore Road
52
Continue on CR 57
0.3 mi·43 sec·Howells Road
53
Turn straight onto CR 57
341 ft·6 sec·Sunrise Highway
54
Keep slight right at fork onto CR 57
0.6 mi·1 min·Howells Road
Toward Howells Road SouthUse the right lane.
55
Continue on CR 57
0.2 mi·24 sec·Roosevelt Street
56
Continue on CR 57
0.7 mi·1 min·3rd Avenue
57
At end of road, turn left onto NY 27A
1.1 mi·1 min·East Main Street
58
Continue on Montauk Highway
0.2 mi·17 sec·Montauk Highway
59
Continue on NY 27A
0.8 mi·1 min·Main Street
60
Arrive at destination
NY 27A
Trip Plan
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 102.1 miles from Unadilla, NY, or about 2h 24m into the drive.
The longest continuous stretch on this route runs about 70.1 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 45 miles or 1h 14m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 102.1 miles or 2h 24m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h 49m
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 Unadilla, 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 Unadilla, NY
This is one driving day of about 204.3 miles and 4h 41m.
Your first comfortable stop window is around 45 miles from Unadilla, 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 70.1 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 102.1 mi from Unadilla, NY
· 2h 24m into the drive
The midpoint is around 102.1 miles from Unadilla, 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 70.1 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.
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
~7 min detour
Free
near mile 155
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...
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...
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 155
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...
10 mi from route
~26 min detour
Free
near mile 155
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 155
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$33.63 one way
$67.26 round trip
$4.18/gal25.4 MPG avg72 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.52
$36.36
$72.73
premium
$4.92
$39.60
$79.19
diesel
$5.61
$45.11
$90.21
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
$34
Tolls
$23
Meals
$25–$50
Total
$82–$107
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 71.5 kg one way.
Prices: EIA weekly data, 2026-04-13.
EV Charging Along Route
34 DC fast chargers
· Coverage: excellent
ViaLynk Charging Station
Goshen, New York
ViaLynk
1 DCFC
Blink Charging Station
Middletown, New York
Blink
1 DCFC
ChargePoint Charging Station
Mahwah, New Jersey
ChargePoint
1 DCFC
Tesla Supercharger
Monticello, New York
Tesla
1 DCFC
ChargePoint Charging Station
Middletown, New York
ChargePoint
1 DCFC
Tesla Supercharger
Middletown, New York
Tesla
1 DCFC
EV Connect Charging Station
Central Valley, New York
EV Connect
1 DCFC
Tesla Supercharger
Central Valley, New York
Tesla
1 DCFC
ChargePoint: 16
Other: 7
Tesla: 3
ViaLynk: 2
Blink: 2
EV Connect: 2
EVgo: 1
Tesla Destination: 1
Station data from NREL Alternative Fuel Stations database.
Driving Electric?
About $21 in charging
· 0 stops
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
61.3
0
$21.45
$9.81
Efficient EV
51.1
0
$17.88
$8.17
EV Truck/SUV
81.7
1
$28.60
$13.08
Gas CO2
71 kg
EV CO2
24 kg (66% 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.
Forecast as of Apr 14, 2026
Origin
Unadilla, NY
Late night
in Unadilla on Saturday
Local time
1:03 AM
EDT
Current temp
39°F
Unavailable
Live forecast
Destination
Islip, NY
Late night
in Islip on Saturday
Local time
1:03 AM
EDT
Current temp
53°F
Partly Cloudy
W 6 mph3% chanceLive forecast
Flood Warning
Flood Warning issued April 13 at 11:13PM EDT until April 16 at 2:00PM EDT by NWS Binghamton NY
57°F
Ramapo, NY
102 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
4h 41m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from Unadilla, NY to Islip, NY covers 204.3 miles and takes about 4h 41m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are NY 17, Southern State Parkway, NJ 17. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 102.1 miles from Unadilla, NY. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $33.63 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
An early start around 7-8 AM gets you there with plenty of daylight left. A late afternoon start means arriving after dark. Morning is better.
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 35 significant decision points across 204.3 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 46.4 miles: Lane positioning matters here; at 115.8 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 131.1 miles (NY 17): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Between Unadilla, 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.
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, NREL for EV charging, and NPS for national parks. See our methodology for refresh cadence and limitations.
