The drive from Porter, NY to Islip, NY covers 244.9 miles and takes about 5h 28m behind the wheel.
This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on New York State Thruway, Southern State Parkway, NY 40 for much of the mileage,
and the overall profile is turn-heavy local drive.
The longest uninterrupted segment is about 111.2 miles on New York State Thruway.
At current regular gas prices, budget about $40.31 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
122.5 miles from Porter, NY
A natural place for your longest stop of the day
, about 2h 49m into the drive
.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 5h 28m. Total distance: 244.9 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
5h 28m drive, comfortable solo distance.
Scenic Drive
Turn-heavy local drive route profile with national parks nearby.
Drive Character
Expect a 5h 28m drive with frequent turns across 244.9 miles of local and secondary roads.
This route has more turning and local-road decision points than a simple highway run.
There are about 55 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
New York State Thruway is the longest continuous segment at about 111.2 miles.
How Hard Is This Drive?
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 171.7 miles in near NY 17.
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 32 significant decision points across 244.9 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 171.7 miles (NY 17): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 173.1 miles (NJ 17): Highway fork - watch signs carefully. Lane positioning matters here; at 202.2 miles (I 295 / Cross Bronx Expressway): Highway fork - watch signs carefully. Lane positioning matters here.
Critical Maneuvers
5 of 32 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
9
171.7 mi into trip|~3h 45m 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
173.1 mi into trip|~3h 47m 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
202.2 mi into trip|~4h 27m 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
8
215.1 mi into trip|~4h 46m in
Take the exit toward Southern State Parkway East, Eastern Long Island
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left / straight lanes.
Exit 25A
Toward Southern State Parkway East, Eastern Lon...
9
240.3 mi into trip|~5h 19m 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 Porter, NY and Islip, NY, road signs point toward Massachusetts Turnpike, Exits 22-1, Gsp South: Paterson, Fort Lee, New York and Cross Island Parkway South - among others.
Massachusetts Turnpike
60 mi in|~1h 36m
Exits 22-1
60 mi in|~1h 36m
Gsp South: Paterson
187.2 mi in|~4h 6m
Fort Lee
187.2 mi in|~4h 6m
New York
187.2 mi in|~4h 6m
Cross Island Parkway South
213.6 mi in|~4h 44m
Southern State Parkway East
215.1 mi in|~4h 46m
Eastern Long Island
215.1 mi in|~4h 46m
Main Roads
Road
Distance
Duration
New York State Thruway
111.2 mi
2h 8m
Southern State Parkway
24.7 mi
31m
NY 40
22.3 mi
34m
NJ 17
14.1 mi
18m
I 787
10.5 mi
15m
State Highway 29
10.3 mi
16m
State Highway 22
9.6 mi
13m
NJ 4
6.7 mi
9m
Longest stretch:
New York State Thruway
— 111.2 mi, about 2h 8m
Turn-by-Turn Driving Directions
Step-by-step road directions between Porter, NY and Islip, NY.
1
Start on South Grimes Hill Road
129 ft·10 sec·South Grimes Hill Road
2
Turn right onto NY 22
8.3 mi·11 min·State Highway 22
3
Continue on NY 22
1.9 mi·4 min·North Main Street
4
Continue on NY 22
1.3 mi·1 min·State Highway 22
5
Turn right onto NY 29
10 mi·16 min·State Highway 29
6
At end of road, turn left onto Main Street
60 ft·4 sec·Main Street
7
Turn right onto Hill Street
1.2 mi·2 min·Hill Street
8
Continue on Hegeman Bridge Road
0.6 mi·1 min·Hegeman Bridge Road
9
At end of road, turn left onto NY 40
22 mi·34 min·NY 40
10
Turn right onto NY 40; NY 142
465 ft·18 sec·Plank Road
11
Turn left onto NY 40
3.4 mi·7 min·Oakwood Avenue
12
Continue on NY 40
392 ft·14 sec·10th Street
13
Turn right onto NY 7
513 ft·16 sec·Hoosick Street
Use the right lane.
14
Turn right onto I 787; NY 7
0.5 mi·42 sec·I 787; NY 7
15
Keep slight right at fork onto I 787
9.4 mi·13 min·I 787
Use the slight right lane.
16
Continue on I 787
0.6 mi·1 min·I 787
Exit 1Toward I 87 Toll: New York State Thruway
17
Keep slight left at fork
0.5 mi·1 min
Toward I 87 South: New York, Massachusetts Turnpike, Exits 22-1
18
Merge onto I 87
111 mi·2 hr 8 min·New York State Thruway
Use the straight / slight right lanes.
19
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.
20
Continue on I 287; NJ 17
0.5 mi·39 sec·I 287; NJ 17
21
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.
22
Take the exit
0.1 mi·19 sec
Toward NJ 4, GSP South: Paterson, Fort Lee, New York
23
Keep slight left at fork
0.5 mi·1 min
Toward NJ 4 East: Fort Lee, New York
24
Merge onto NJ 4
0.3 mi·24 sec·NJ 4
Use the right lane.
25
Continue on NJ 4
6.4 mi·8 min·NJ 4
Use the straight / slight right lanes.
26
Take the exit
0.2 mi·18 sec
Toward I 95 North: George Washington BridgeUse the straight / slight left lanes.
27
Merge onto I 95 EXPR
0.7 mi·54 sec·I 95 EXPR
Use the straight / slight right lanes.
28
Keep slight left at fork onto I 95 EXPR
0.8 mi·1 min·I 95 EXPR
29
Continue on I 95; US 1; US 9
0.6 mi·1 min·George Washington Bridge (upper level)
Use the straight / slight right lanes.
30
Continue on I 95; US 1
0.7 mi·1 min·Trans-Manhattan Expressway
31
Continue on I 95; US 1
4.7 mi·6 min·Cross Bronx Expressway
Use the straight / slight right lanes.
32
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.
33
Merge onto I 295
0.6 mi·58 sec·Throgs Neck Expressway
34
Continue on I 295
2.0 mi·3 min·Throgs Neck Bridge
Use the straight / slight right lanes.
35
Continue on I 295
5.0 mi·5 min·Clearview Expressway
Use the straight / slight right lanes.
36
Continue on NY 24
0.7 mi·1 min·Hollis Court Boulevard
Use the straight lane.
37
At end of road, turn left onto NY 24
0.2 mi·35 sec·Jamaica Avenue
Use the left lane.
38
Turn right onto Hempstead Avenue
0.9 mi·2 min·Hempstead Avenue
39
Turn right onto 225th Street
228 ft·9 sec·225th Street
Use the right lane.
40
Take the ramp
0.2 mi·28 sec
Toward Cross Island Parkway South, Verrazano Bridge
41
Merge onto CI
1.3 mi·1 min·Cross Island Parkway
Use the straight / slight right lanes.
42
Take the exit
0.5 mi·1 min
Exit 25AToward Southern State Parkway East, Eastern Long IslandUse the slight left / straight lanes.
43
Merge onto SO
25 mi·31 min·Southern State Parkway
Use the straight / slight right lanes.
44
Keep slight left at fork onto SO
0.2 mi·16 sec·Southern State Parkway
Use the straight / slight right lanes.
45
Take the exit
0.2 mi·31 sec
Exit 41SToward Bay Shore Road South, Bay ShoreUse the slight right lane.
46
Turn straight onto CR 57
0.5 mi·1 min·Bay Shore Road
47
Continue on CR 57
0.3 mi·43 sec·Howells Road
48
Turn straight onto CR 57
341 ft·6 sec·Sunrise Highway
49
Keep slight right at fork onto CR 57
0.6 mi·1 min·Howells Road
Toward Howells Road SouthUse the right lane.
50
Continue on CR 57
0.2 mi·24 sec·Roosevelt Street
51
Continue on CR 57
0.7 mi·1 min·3rd Avenue
52
At end of road, turn left onto NY 27A
1.1 mi·1 min·East Main Street
53
Continue on Montauk Highway
0.2 mi·17 sec·Montauk Highway
54
Continue on NY 27A
0.8 mi·1 min·Main Street
55
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 122.5 miles from Porter, NY, or about 2h 49m into the drive.
The longest continuous stretch on this route runs about 111.2 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 54 miles or 1h 27m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 122.5 miles or 2h 49m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 26m
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 Porter, 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 Porter, NY
This is one driving day of about 244.9 miles and 5h 28m.
Your first comfortable stop window is around 54 miles from Porter, 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 New York State Thruway for about 111.2 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 122.5 mi from Porter, NY
· 2h 49m into the drive
Place data sourced from public business listings. Hours and availability may vary.
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...
4 mi from route
~10 min detour
Free
near mile 194.3
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...
4 mi from route
~9 min detour
Free
near mile 194.3
In 1777, a large British invasion force met an equally large American army here at Saratoga. After two intense battles, an eight-mile retreat, and a three-day siege, British General John Burgoyne surr...
5 mi from route
~12 min detour
Free
near mile 33.8
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
~23 min detour
Free
near mile 194.3
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...
11 mi from route
~27 min detour
Free
near mile 194.3
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
~28 min detour
Free
near mile 194.3
Station data from NREL Alternative Fuel Stations database.
Driving Electric?
About $26 in charging
· 0 stops
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
73.5
0
$25.71
$11.76
Efficient EV
61.2
0
$21.43
$9.80
EV Truck/SUV
98
1
$34.29
$15.67
Gas CO2
86 kg
EV CO2
29 kg (66% less)
Plan for 0 charging stops, roughly every 270 miles. Allow 25-40 minutes per stop at a DC fast charger.
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 15, 2026
Origin
Porter, NY
Afternoon
in Porter on Friday
Local time
1:13 PM
EDT
Current temp
37°F
Unavailable
Live forecast
Destination
Islip, NY
Afternoon
in Islip on Friday
Local time
1:13 PM
EDT
Current temp
44°F
Unavailable
Live forecast
57°F
Ramapo, NY
122 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
7 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
5h 28m 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 Porter, NY to Islip, NY covers 244.9 miles and takes about 5h 28m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are New York State Thruway, Southern State Parkway, NY 40. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 122.5 miles from Porter, NY. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $40.31 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 32 significant decision points across 244.9 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 171.7 miles (NY 17): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 173.1 miles (NJ 17): Highway fork - watch signs carefully. Lane positioning matters here; at 202.2 miles (I 295 / Cross Bronx Expressway): Highway fork - watch signs carefully. Lane positioning matters here.
Between Porter, NY and Islip, NY, road signs point toward Massachusetts Turnpike, Exits 22-1, 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.
